2024/05/14 更新

タカツジ ヨシユキ
高辻 義行
TAKATSUJI Yoshiyuki
Scopus 論文情報  
総論文数: 0  総Citation: 0  h-index: 15

Citation Countは当該年に発表した論文の被引用数

所属
大学院生命体工学研究科 生体機能応用工学専攻
職名
准教授
外部リンク

研究キーワード

  • 触媒電極

  • CO2資源化

  • 鍍金

取得学位

  • 九州工業大学  -  博士(工学)   2014年03月

学内職務経歴

  • 2023年01月 - 現在   九州工業大学   大学院生命体工学研究科   生体機能応用工学専攻     准教授

  • 2017年01月 - 2022年12月   九州工業大学   大学院生命体工学研究科   生体機能応用工学専攻     助教

論文

  • Photoelectrochemical C-H activation of methane to methyl radical at room temperature 査読有り 国際誌

    Amano F., Shintani A., Sakakura T., Takatsuji Y., Haruyama T.

    Catalysis Science and Technology   13 ( 16 )   4640 - 4645   2023年06月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    Herein, we report a continuous gas-fed photoelectrochemical (PEC) system with a proton exchange membrane for CH4 activation at ambient temperature and pressure. We found that both water splitting and steam reforming of CH4 were induced over oxide photoanodes. When the CH4 concentration was low, O2 and CO2 were formed on titanium oxide (TiO2) and tungsten trioxide (WO3) photoanodes under ultraviolet light irradiation. We also found that visible light enhanced CH4 activation and ethane (C2H6) formation over the WO3 photoanode. When the CH4 concentration increased, O2 formation was suppressed, with increasing production rates of CO2, C2H6, and CO. Under optimised conditions, the selectivity of C2H6 reached 57% on a carbon basis over the WO3 photoanode under visible-light irradiation. The production of C2H6 implies the formation of methyl radicals during the CH4 gas-fed PEC process. We also demonstrated the PEC coupling of ethane to n-butane and the visible-light-induced oxidation of CH4 without external bias.

    DOI: 10.1039/d3cy00632h

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  • Elucidation of the behavior of oxygen remaining in water molecules after hydrogen atom abstraction in the plasma/liquid (P/L) interfacial reaction: improvement in the selectivity of ammonia synthesis and parallel production of hydrogen gas 査読有り 国際誌

    Yoshida S., Murakami N., Takatsuji Y., Haruyama T.

    Green Chemistry   25 ( 2 )   579 - 588   2022年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    The plasma/liquid interfacial (P/L) reaction is a non-catalytic reaction conducted at an ambient temperature and pressure. The reaction employs activated (dissociated or excited) nitrogen and abstracted hydrogen from water molecules to form ammonia. Herein we demonstrated that dissociated nitrogen (atomic nitrogen; Natom) promoted ammonia selectivity more efficiently than excited nitrogen molecules in P/L reactions. We investigated the behavior of water-derived oxygen after abstracting a hydrogen atom from a water molecule. We constructed a connecting reactor that directly connects the P/L reaction locus with a titania bead-filled packed-bed dielectric barrier discharge (PbDBD) device that exhibits high Natom generation efficiency. In this reactor, the P/L reaction produced aqueous ammonia with high selectivity and minimal aqueous nitrate ions, which are the typical by-products of the reaction. We also observed that oxygen and hydrogen atoms from water were released into the gas phase to form NO and hydrogen gases. The removal of oxygen as NO gas from the P/L reaction locus significantly improved the ammonia synthesis selectivity of the P/L reaction. Additionally, the ability to generate hydrogen gas during ammonia synthesis in the P/L reaction enables the simultaneous production of ammonia and hydrogen gas.

    DOI: 10.1039/d2gc03491c

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  • 触媒電極の開発と二酸化炭素資源化への展望 招待有り 査読有り

    高辻義行, 春山哲也

    材料の科学と工学 ( 日本材料科学会 )   59 ( 3 )   86 - 89   2022年06月

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    担当区分:筆頭著者, 責任著者   記述言語:日本語   掲載種別:研究論文(学術雑誌)

  • Anodized Zn electrode for formate selectivity during the electrochemical reduction of CO#D2#DR at low applied potential 査読有り 国際誌

    Takatsuji Yoshiyuki, Morimoto Masayuki, Nakatsuru Yukimasa, Haruyama Tetsuya

    Electrochemistry Communications ( Elsevier )   138   107281   2022年05月

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)

    It is well known that the main product of the CO2 electrochemical reduction on zinc electrodes is CO. In this study, it was observed that an anodized Zn electrode can produce formate with high selectivity during the electrochemical reduction of CO2 at low applied potentials. The Zn electrode obtained using a simple anodization method produced formate with a Faradaic efficiency of more than 60% via reduction of CO2 at a low potential of −1.19 V vs. the reversible hydrogen electrode (RHE). According to several previous studies, selectivity toward formate production requires a large potential of approximately −2.0 V vs. RHE. X-ray diffraction analysis of this electrode suggests that the surface of this electrode is dominated by the Zn (1 0 1) plane and that Zn (1 0 1) is highly active in formate formation. This study confirms that an anodized Zn (1 0 1) facet can generate formate during CO2 electrochemical reduction at a low applied potential.

    DOI: 10.1016/j.elecom.2022.107281

    DOI: 10.1016/j.elecom.2022.107281

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  • Quick and environmentally friendly sterilization process of dental instruments by radical vapor reactor 査読有り 国際誌

    Okita Kaede, Yamasaki Ryota, Nakamura Yohei, Sakakura Tatsuya, Kawano Aki, Takatsuji Yoshiyuki, Haruyama Tetsuya, Yoshikawa Yoshie, Ariyoshi Wataru

    Process Biochemistry ( Elsevier )   113   22 - 26   2022年02月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    Dental instruments such as dental burs, endodontic files, scalers, and dental vacuum tips require complete sterilization to protect patients from infection. Generally, these instruments are sterilized by autoclaving or using ethylene oxide gas. However, these sterilization methods require a long time, high energy, and the production of hazardous waste. Therefore, a quick, low-energy, and high-sterilization method that generates no hazardous waste is required in the dental field. A radical vapor reactor (RVR) can sterilize bacteria by producing high concentrations of reactive oxygen species. In this study, we found that RVR can sterilize dental instruments effectively (i.e., under 10 min with green technology), and that packed dental instruments can be completely sterilized in 10 min using RVR treatment. Furthermore, we demonstrated that RVR treatment can meet the sterility assurance level. Thus, we propose the use of RVR technology to perform quick sterilization with a low environmental load.

    DOI: 10.1016/j.procbio.2021.12.014

    DOI: 10.1016/j.procbio.2021.12.014

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  • Decreasing the Overpotential for Formate Production in Electrochemical CO#D2#DR Reduction Achieved by Anodized Sn Electrode 査読有り 国際誌

    Morimoto Masayuki, Fujita Namiki, Takatsuji Yoshiyuki, Haruyama Tetsuya

    Electrocatalysis ( Springer Nature )   13 ( 1 )   72 - 80   2022年01月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)

    Abstract: The Sn electrode possesses a high selectivity for formate production in electrochemical CO2 reduction. Understanding the relationship between the selectivity of formate and surface characteristics such as structure and chemical state is important for obtaining high activity. In this study, we fabricated a porous Sn electrode using a simple method of anodization in lactic acid. The anodized electrode had numerous 1-μm pores and its surface chemical state had a relatively high ratio of Sn0 compared with that of a bare Sn electrode. In the CO2 reduction reaction, the anodized Sn electrode showed a Faradaic efficiency (FE) of 35% for formate production at a low applied potential of −0.6 V vs. a reversible hydrogen electrode (RHE), with suppressed H2 generation. A Tafel analysis revealed that the slope of the anodized Sn electrode was 70 mV/decade, suggesting an increase in the stability of the CO2 radical anion. These results indicated that a coordinative unsaturation site such as the edge site formed by anodization contributes to a decrease in the overpotential and an increase in the reactive sites for formate production. Moreover, the surface structure appeared to be a significant factor in the production of formate at a very low applied potential relative to the surface oxidation state. Textual abstract: The porous Sn electrode was prepared by anodization in lactic acid to increase the selectivity for formate at a low applied potential. Prepared porous Sn electrode enhances formate production from the CO2RR at a low applied potential due to the stabilization of the CO2 or its reaction intermediates. Graphical Abstract: [Figure not available: see fulltext.].

    DOI: 10.1007/s12678-021-00695-2

    DOI: 10.1007/s12678-021-00695-2

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  • Drastically Increase in Atomic Nitrogen Production Depending on the Dielectric Constant of Beads Filled in the Discharge Space 査読有り 国際誌

    Tsuchida Yuto, Murakami Naoya, Sakakura Tatsuya, Takatsuji Yoshiyuki, Haruyama Tetsuya

    ACS Omega ( American Chemical Society )   6 ( 44 )   29759 - 29764   2021年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    Nitrogen activation, especially dissociation (production of atomic nitrogen), is a key step for efficient nitrogen fixation, such as nitrogen reduction to produce ammonia. Nitrogen reduction reactions using water as a direct hydrogen source have been studied by many researchers as a green ammonia process. We studied the reaction mechanism and found that the nitrogen reduction could be significantly improved via efficient production of atomic nitrogen through electric discharge. In the present study, we focused on packed-bed dielectric barrier discharge (PbDBD) using dielectric beads as the packing material. The experimental results showed that more atomic nitrogen was produced in the nitrogen activation by the discharge in which the discharge space was filled with the dielectric beads than in the nitrogen activation by the discharge without using the dielectric beads. Then, it was clarified that the amount of atomic nitrogen increased as the dielectric constant of the beads to be filled increased, and the amount of atomic nitrogen produced increased up to 13.48 times. Based on the results, we attempted ammonia synthesis using water as a direct hydrogen source with the efficiently generated atomic nitrogen. When the atomic nitrogen gas generated by the PbDBD was sprayed onto the surface of the water phase and subsequently reacted as a plasma/liquid interfacial reaction, the nitrogen fixation rate increased by 7.26-fold compared to that when using the discharge without dielectric beads, and the ammonia production selectivity increased to 83.7%.

    DOI: 10.1021/acsomega.1c04201

    DOI: 10.1021/acsomega.1c04201

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  • Reactive Oxygen Species Penetrate Persister Cell Membranes of Escherichia coli for Effective Cell Killing 査読有り 国際誌

    Aki Kawano, Ryota Yamasaki, Tatsuya Sakakura, Yoshiyuki Takatsuji, Tetsuya Haruyama, Yoshie Yoshioka, Wataru Ariyoshi

    Frontiers in Cellular and Infection Microbiology   10   2020年09月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    Persister cells are difficult to eliminate because they are tolerant to antibiotic stress. In the present study, using artificially induced Escherichia coli persister cells, we found that reactive oxygen species (ROS) have greater effects on persister cells than on exponential cells. Thus, we examined which types of ROS could effectively eliminate persister cells and determined the mechanisms underlying the effects of these ROS. Ultraviolet (UV) light irradiation can kill persister cells, and bacterial viability is markedly increased under UV shielding. UV induces the production of ROS, which kill bacteria by moving toward the shielded area. Electron spin resonance-based analysis confirmed that hydroxyl radicals are produced by UV irradiation, although singlet oxygen is not produced. These results clearly revealed that ROS sterilizes persister cells more effectively compared to the sterilization of exponential cells (**p < 0.01). These ROS do not injure the bacterial cell wall but rather invade the cell, followed by cell killing. Additionally, the sterilization effect on persister cells was increased by exposure to oxygen plasma during UV irradiation. However, vapor conditions decreased persister cell sterilization by reducing the levels of hydroxyl radicals. We also verified the effect of ROS against bacteria in biofilms that are more resistant than planktonic cells. Although UV alone could not completely sterilize the biofilm bacteria, UV with ROS achieved complete sterilization. Our results demonstrate that persister cells strongly resist the effects of antibiotics and starvation stress but are less able to withstand exposure to ROS. It was shown that ROS does not affect the cell membrane but penetrates it and acts internally to kill persister cells. In particular, it was clarified that the hydroxy radical is an effective sterilizer to kill persister cells.

    DOI: 10.3389/fcimb.2020.00496

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  • Nitrogen Fixation in a Plasma/Liquid Interfacial Reaction and Its Switching between Reduction and Oxidation 査読有り 国際誌

    Tatsuya Sakakura, Naoya Murakami, Yoshiyuki Takatsuji, Tetsuya Haruyama

    Journal of Physical Chemistry C   17 ( 30 )   9401 - 9408   2020年04月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    There are multiple active species at the interface between the discharged gas phase and the water phase. Activated nitrogen species are generated in the nitrogen plasma gas by dielectric barrier discharge (DBD). The reaction at the interface between the gas phase containing the activated nitrogen species and water phase (P/L reaction) can produce nitrogen-derived compounds (N-compounds) in water. We have already clarified the mechanism of the P/L reaction focusing on highly active atomic nitrogen in a previous study. In this study, we report the mechanism of the P/L reaction by excited but metastable nitrogen molecules. Involving excited nitrogen molecules [N2(A3ςu+)] with a long lifetime, the reaction selectivity of N-compounds was clarified by quantitative analysis. Moreover, the active species in the water phase (H·, HO·, H2O2) of the P/L reaction were measured, and the involvement of the reaction in the generation of N-compounds was confirmed. The findings clarify that each activated nitrogen species reacts differently with H2O. These results suggest that the occurrence of either an oxidation reaction or a reduction reaction can be regulated by controlling the activated nitrogen species.

    DOI: 10.1021/acs.jpcc.0c02392

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  • Photoelectrochemical reduction of CO#D2#DR using a TiO#D2#DR photoanode and a gas diffusion electrode modified with a metal phthalocyanine catalyst 査読有り 国際誌

    Katsuichiro Kobayashi, Shi Nee Lou, Yoshiyuki Takatsuji, Tetsuya Haruyama,Youichi Shimizu, and Teruhisa Ohno

    Electrochimica Acta   338   2020年01月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    DOI: 10.1016/j.electacta.2020.135805

  • Nitrogen fixation through the plasma/liquid interfacial reaction with controlled conditions of each phase as the reaction locus 査読有り

    Sakakura T., Takatsuji Y., Morimoto M., Haruyama T.

    Electrochemistry ( 公益社団法人 電気化学会 )   88 ( 3 )   190 - 194   2020年01月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    In the plasma/liquid (P/L) interfacial reaction, nitrogen fixation is performed on a water phase surface. In the P/L reaction, discharged nitrogen gas reacts with water molecules at the interface between the plasma gas phase and the water phase, followed by either a reduction reaction, ammonia production or oxidation reaction, nitric acid production. The production of nitric acid in the P/L reaction is influenced by the concentration of oxygen present in each gas phase and water phase, and the atomic nitrogen contained in the nitrogen plasma. For the reduction reaction at the P/L reaction locus, the water phase was modulated in order to make ammonia production dominant in nitrogen fixation. Ammonia is released into the gas phase under conditions of high water temperature and high pH. To obtain only ammonia using this reaction, it is necessary to incorporate a process for raising the temperature of the water. In the P/L reaction, only the ammonia gas can be obtained in one-step by using the rise in water temperature due to the discharged heat plasma gas. A reaction system was developed to control the water and the gas phase to enable high purity ammonia trapping as released by the gas phase.

    DOI: 10.5796/electrochemistry.19-00080

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  • 水を直接の水素源として窒素還元を行う「相界面反応」によるアンモニア合成 招待有り 査読有り

    酒倉辰弥、高辻義行、春山哲也

    化学工業   70 ( 11 )   805 - 809   2019年11月

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    記述言語:日本語   掲載種別:記事・総説・解説・論説等(学術雑誌)

  • Contribution of discharge excited atomic N, N#D2#DR#U*#UR, and N#D2#DR#U+#UR to a plasma/liquid interfacial reaction as suggested by quantitative analysis 査読有り 国際誌

    Tatsuya Sakakura, Naoya Murakami, Yoshiyuki Takatsuji, Masayuki Morimoto and Tetsuya Haruyama

    ChemPhysChem   20 ( 11 )   1467 - 1474   2019年06月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    Electric-discharge nitrogen comprises three main types of excited nitrogen species-atomic nitrogen (Natom), excited nitrogen molecules (N2*), and nitrogen ions (N2+) – which have different lifetimes and reactivities. In particular, the interfacial reaction locus between the discharged nitrogen and the water phase produces nitrogen compounds such as ammonia and nitrate ions (denoted as N-compounds generically); this is referred to as the plasma/liquid interfacial (P/L) reaction. The Natom amount was analyzed quantitatively to clarify the contribution of Natom to the P/L reaction. We focused on the quantitative relationship between Natom and the produced N-compounds, and found that both N2* and N2+, which are active species other than Natom, contributed to P/L reaction. The production of N-compounds from N2* and N2+ was enhanced upon UV irradiation of the water phase, but the production of N-compounds from Natom did not increase by UV irradiation. These results revealed that the P/L reactions starting from Natom and those starting from N2* and N2+ follow different mechanisms.

    DOI: 10.1002/cphc.201900212

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  • Experimental and Theoretical Elucidation of Electrochemical CO <inf>2</inf> Reduction on an Electrodeposited Cu <inf>3</inf> Sn Alloy 査読有り

    Morimoto M., Takatsuji Y., Iikubo S., Kawano S., Sakakura T., Haruyama T.

    Journal of Physical Chemistry C   123 ( 5 )   3004 - 3010   2019年02月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    © 2019 American Chemical Society. The reaction selectivity of an electrode catalyst can be modulated by regulating its crystal structure, and the modified electrode may show different CO 2 reduction selectivity from that of its constituent metal. In this study, we investigated the mechanisms of the electrochemical CO 2 reduction on an electrodeposited Cu 3 Sn alloy by experimental and theoretical analyses. The electrodeposited Cu 3 Sn alloy electrode showed selectivity for CO production at all the applied potentials, and HCOOH production increased with an increase in the applied potential. In particular, hydrocarbon generation was well suppressed on Cu 3 Sn(002). To understand this selectivity change in electrochemical CO 2 reduction, we conducted density functional theory calculations for the reaction on the Cu 3 Sn(002) surface. According to the theoretical analysis, the Cu sites in Cu 3 Sn(002) contributed more to the stabilization of H∗, COOH∗, and CO∗ as compared with the Sn sites. Furthermore, the results indicated that Cu 3 Sn(002) decreased the surface coverage of reaction intermediates such as H∗, COOH∗, and CO∗. We believe that these effects promoted CO∗ desorption while suppressing H 2 generation, CO∗ protonation, and C-C bond formation. The results also suggested that the surface Sn concentration significantly affected the reaction selectivity for HCOOH production from CO 2 .

    DOI: 10.1021/acs.jpcc.8b11431

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  • Highly Selective Methane Production Through Electrochemical CO<inf>2</inf> reduction by Electrolytically Plated Cu-Co Electrode 査読有り

    Takatsuji Y., Nakata I., Morimoto M., Sakakura T., Yamasaki R., Haruyama T.

    Electrocatalysis   10 ( 1 )   29 - 34   2019年01月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    © 2018, Springer Science+Business Media, LLC, part of Springer Nature. Among the electrode materials used for electrolytic CO2 reduction, only Cu shows a special function of producing not only carbon monoxide (CO), but also hydrocarbons from CO2. We found that, in electrolytic CO2 reduction using an electrolytically plated Cu-Co electrode, a hydrocarbon product with high faradaic efficiency (FE) could be obtained with low-FE CO. The plated electrodes have a Co solid solution on the Cu surface. The non-localized Co changes the adsorption energy of the reaction intermediate in CO2 reduction. Consequently, by increasing the Co content in Cu, HCOOH can be selectively produced. Further, in electrolytic CO2 reduction with an applied potential of − 1.19 V vs. reversible hydrogen electrode (RHE), the selectivity of methane (CH4) production improved, while the selectivity of ethylene (C2H4) formation lowered. In the reduction using the plated electrode containing 14% Co, the FE of CH4 production reached the highest at 47.7%. These results suggested that mixing Co in Cu promotes the hydrogenation of CH2* to CH3* and inhibits the dimerization of CH2* species. Furthermore, this research on plated electrodes is useful for the development of catalytic electrodes for electrolytic CO2 reduction. [Figure not available: see fulltext.]

    DOI: 10.1007/s12678-018-0492-0

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  • Visualization of catalytic edge reactivity in electrochemical CO<inf>2</inf> reduction on porous Zn electrode 査読有り

    Morimoto M., Takatsuji Y., Hirata K., Fukuma T., Ohno T., Sakakura T., Haruyama T.

    Electrochimica Acta   290   255 - 261   2018年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    © 2018 Elsevier Ltd In the study, the catalytic edge reactivity on porous Zn electrode has successfully visualized through the electrochemical CO2 reduction to CO. It is well known that the activity of a CO2 reduction reaction catalyst depend on the type of material and surface nano-structure. Consequently, numerous researchers are interested in the relation between the catalyst activity and surface conditions such as morphology, oxidation state, and crystal orientation. However, it is difficult to explain the mechanisms of catalytic CO2 reduction and visualize the catalytic activity. Our results demonstrate, that this strategy not only improved the selective CO production, but also helped visualize the catalytic reactivity on the edge site via open-loop electric potential microscopy (OL-EPM). The obtained OL-EPM image strongly suggests that the edge site of porous Zn acts as an efficient reactive site in the CO2 electrochemical reduction reaction.

    DOI: 10.1016/j.electacta.2018.09.080

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  • Green surface cleaning in a radical vapor reactor to remove organic fouling on a substrate 査読有り

    Yamasaki R., Takatsuji Y., Morimoto M., Sakakura T., Matsuo K., Haruyama T.

    Electrochemistry   86 ( 6 )   355 - 362   2018年01月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    © The Electrochemical Society of Japan, All rights reserved. Green cleanup processes for adhered organic fouling on solid surfaces can be successfully performed using a radical vapor reactor (RVR). The RVR can produce large concentrations of reactive oxygen species (ROS, e.g. singlet oxygen (1O2) and hydroxyl radicals (OH)) and can expose them to objective materials. The RVR finds excellent utility in the fields of sterilization and surface functionalization. In this study, RVR is employed in a green cleanup of solid surfaces fouled by an organic polymer and a protein. The RVR produced ROS and removed the adhered organic polymers and proteins from the solid surface. The mechanism of how ROS react with fouling molecules was also elucidated by surface analysis. The greatest advantage of this green RVR cleanup process is that it discharges only air and water. The ROS production and exposure by the RVR successfully cleaned the adhered organic polymer and protein at ambient temperature and pressure without any chemicals. This high-quality, low-cost cleaning technology, which does not require much time and produces no hazardous waste, makes a great contribution to the cleaning industry.

    DOI: 10.5796/electrochemistry.18-00036

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  • Excitation of H<inf>2</inf>O at the plasma/water interface by UV irradiation for the elevation of ammonia production 査読有り

    Sakakura T., Uemura S., Hino M., Kiyomatsu S., Takatsuji Y., Yamasaki R., Morimoto M., Haruyama T.

    Green Chemistry   20 ( 3 )   627 - 633   2018年01月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    © 2018 The Royal Society of Chemistry. Ammonia is well known to be a very important chemical substance for human life. Simultaneously, the conventional ammonia production process needs pure nitrogen and pure hydrogen. Hydrogen has been produced from either liquid natural gas (LNG) or coal. In this study, water is used as a direct hydrogen source for ammonia production, thereby obviating the need for catalysts or water electrolysis. We have studied and developed a plasma/liquid interfacial reaction (P/L reaction) that can be used to produce ammonia from air (nitrogen) and water at ambient temperature and pressure, without any catalysts. In this study, the P/L reaction entails enhanced ultraviolet (UV) irradiation of the surface of the water phase. The nitrogen plasma/water interface reaction locus can produce ammonia. In contrast, the vacuum ultraviolet (VUV) irradiated interface reaction locus produces increased amounts of ammonia. In a spin trap electron spin resonance (st-ESR) experiment, large amounts of atomic H (H) were produced by UV irradiation, especially by VUV irradiation. The derived H effectively enhanced the P/L reaction rate.

    DOI: 10.1039/c7gc03007j

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    その他リンク: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85041650449&origin=inward

  • Efficient sterilization using reactive oxygen species generated by a radical vapor reactor 査読有り

    Yoshiyuki Takatsuji, Shoko Ishikawa, and Tetsuya Haruyama

    Process Biochemistry   54   140 - 143   2017年03月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    DOI: 10.1016/j.procbio.2017.01.002

  • Smooth electron transfer from a photoexcited dye to semiconductor electrode through a swingable molecular interface 査読有り

    Yoshiyuki Takatsuji, Tatsuya Sakakura, Naoya Murakami and Tetsuya Haruyama

    Electrochemistry   84 ( 6 )   390 - 393   2016年06月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    DOI: 10.5796/electrochemistry.84.390

    Scopus

    CiNii Article

  • Non-catalyzed one-step synthesis of ammonia from atmospheric air and water 査読有り

    Tetsuya Haruyama, Takamitsu Namise, Naoya Shimoshimizu, Shintaro Uemura, Yoshiyuki Takatsuji, Mutsuki Hino, Ryota Yamasaki, Toshiaki Kamachi and Masahiro Kohno

    Green Chemistry   18 ( 16 )   4536 - 4541   2016年06月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    DOI: 10.1039/c6gc01560c

    Scopus

  • Flattened-top domical water drops formed through self-organization of hydrophobin membranes: A structural and mechanistic study using atomic force microscopy 査読有り

    Ryota Yamasaki, Yoshiyuki Takatsuji, Hitoshi Asakawa, Takeshi Fukuma and Tetsuya Haruyama

    ACS Nano   10 ( 1 )   81 - 87   2016年01月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    DOI: 10.1021/acsnano.5b04049

    Scopus

  • 有機分子-金属複合界面の形成によるリードフレームとエポキシ樹脂の接着強度向上

    古野 綾太, 高辻 義行, 久保 公彦, 春山 哲也

    電気学会論文誌E(センサ・マイクロマシン部門誌)   136 ( 2 )   31 - 35   2016年01月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    Delamination in semiconductor plastic package is a cause of reliability degradation. We have tried to improve the adhesion strength between leadframe and epoxy resin. In this study, organic molecules-metal (Cu) complex "EC tag (Cu)" were employed. It is immobilized on the leadframe surface as adhesion promoter to adhere with thermosetting epoxy resin. In the results, immobilized EC tag (Cu) act as adhesion promoter that shows greater adhesion between leadframe and epoxy resin. Also the leadframe with adhesion promoter doesnt affect semiconductor assembly characteristics.

    DOI: 10.1541/ieejsmas.136.31

    CiNii Article

    その他リンク: http://ci.nii.ac.jp/naid/130005122061

  • A "swingable" straight-chain affinity molecule immobilized on a semi-conductor electrode for photo-excited current-based molecular sensing 査読有り

    Yoshiyuki Takatsuji, Ryo Wakabayashi, Tatsuya Sakakura and Tetsuya Haruyama

    Electrochimica Acta   180 ( 20 )   202 - 207   2015年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    DOI: 10.1016/j.electacta.2015.08.111

    Scopus

  • Dispersed-phase interfaces between mist water particles and oxygen plasma efficiently produce singlet oxygen (1O2) and hydroxyl radical (•OH) 査読有り

    6) Keishi Matsuo, Yoshiyuki Takatsuji, Masahiro Kohno, Toshiaki Kamachi, Hideo Nakata, and Tetsuya Haruyama

    Keishi Matsuo, Yoshiyuki Takatsuji, Masahiro Kohno, Toshiaki Kamachi, Hideo Nakata, and Tetsuya Haruyama   83 ( 9 )   721 - 724   2015年09月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    DOI: 10.5796/electrochemistry.83.721

    Scopus

    CiNii Article

  • Electrochemical properties of honeycomb-like structured HFBI self-organized membranes on HOPG electrodes 査読有り

    Yamasaki Ryota, Takatsuji Yoshiyuki, Lienemann Michael, Asakawa Hitoshi, Fukuma Takeshi, Linder Markus, Haruyama Tetsuya

    Colloids and Surfaces B: Biointerfaces   123   803 - 808   2014年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    DOI: 10.1016/j.colsurfb.2014.10.018

  • Solid-support immobilization of a “swing” fusion protein for enhanced glucose oxidase catalytic activity 査読有り

    Yoshiyuki Takatsuji, Ryota Yamasaki, Atsushi Iwanaga, Michael Lienemann, Markus B. Linder and Tetsuya Haruyama

    Colloids and Surfaces B: Biointerfaces   112 ( 1 )   186 - 191   2013年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    DOI: 10.1016/j.colsurfb.2013.07.051

    Scopus

  • Structure-function relationships in hydrophobins: Probing the role of charged side chains 査読有り

    Michael Lienemann, Juie-Anne Gandier, Jussi J. Joensuu, Atsushi Iwanaga, Yoshiyuki Takatsuji, Tetsuya Haruyama, Emma Master, Maija Tenkanen, Markus B. Linder

    Applied and Environmental Microbiology   79 ( 18 )   5533 - 5538   2013年09月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    DOI: 10.1128/AEM.01493-13

    Scopus

  • Gold nanoparticles functionalized with peptides for specific affinity aggregation assays of estrogen receptors and Their Agonists 査読有り

    Yoshiyuki Takatsuji, Shinya Ikeno, Tetsuya Haruyama

    Sensors   12 ( 4 )   4952 - 4961   2012年04月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)

    DOI: 10.3390/s120404952

    Scopus

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著書

  • SDGsと化学 元素循環からのアプローチ

    2. 春山哲也 編著、高辻義行、村上直也、前田憲成、村上恵美子(共著 ,  範囲: 二酸化炭素と地球温暖化 排出制限・貯蔵・変換)

    丸善出版  2022年12月  ( ISBN:978-4-621-30775-5

     詳細を見る

    総ページ数:224   担当ページ:24   記述言語:日本語

口頭発表・ポスター発表等

  • 窒素と水のみからアンモニアを合成する相界面反応の気相成分と放電特性

    吉田蒼馬、村上直也、高辻義行、春山哲也

    電気化学会第90回大会  2023年09月 

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    開催期間: 2023年03月27日 - 2023年03月29日   記述言語:英語   開催地:東北工業大学   国名:日本国  

  • アンモニアと水素の同時合成を可能にする相界面反応と反応経路

    吉田蒼馬、村上直也、高辻義行、春山哲也

    化学工学会第88年回(2023)  2023年03月 

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    開催期間: 2023年03月15日 - 2023年03月17日   記述言語:日本語   開催地:東京農工大学   国名:日本国  

  • 相界面反応によるアンモニア高選択合成とその反応解析

    2. 吉田蒼馬、渡邉拓斗、村上直也、高辻義行、春山哲也

    化学工学会第53回秋季大会(2022)  2022年09月 

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    開催期間: 2022年09月14日 - 2022年09月16日   記述言語:日本語   開催地:信州大学   国名:日本国  

  • 鉛めっき電極のCO2電解還元特性

    高辻義行,木本拓海,大森雄太,春山哲也

    2022電気化学会秋季大会  2022年09月 

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    開催期間: 2022年09月08日 - 2022年09月09日   記述言語:日本語   開催地:神奈川大学   国名:日本国  

  • マイクロプラスチックファイバーの酸化促進電解プロセスによる分解

    目細 太一、高辻 義行、髙村 映一郎、春山 哲也、坂元 博昭

    2022電気化学会秋季大会  2022年09月 

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    開催期間: 2022年09月08日 - 2022年09月09日   記述言語:日本語   開催地:神奈川大学   国名:日本国  

  • アンモニアの高選択合成を可能にする原子状窒素による相界面反応

    吉田蒼馬、渡邉拓斗、高辻義行、春山哲也

    第59回化学関連支部合同九州大会  2022年07月 

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    開催期間: 2022年07月02日   記述言語:日本語   開催地:北九州国際会議場   国名:日本国  

  • CO₂電解還元のギ酸生成選択性を向上するanodized-Zn電極の検討

    汐川京大、森本将行、高辻義行、春山哲也

    第59回化学関連支部合同九州大会  2022年07月 

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    開催期間: 2022年07月02日   記述言語:日本語   開催地:北九州国際会議場   国名:日本国  

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担当授業科目(学内)

  • 2023年度   電解触媒工学と化学循環

  • 2023年度   循環可能化学コラボレーションストーミング

  • 2023年度   応用化学実験A

  • 2023年度   生命体工学概論A

  • 2022年度   応用化学実験A

  • 2021年度   応用化学実験A

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