Faculty Profiles - TSUBOTA Toshiki

Papers - TSUBOTA Toshiki

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Enhancing soil water holding capacity and provision of a potassium source via optimization of the pyrolysis of bamboo biochar Reviewed

Hien T.T.T., Tsubota T., Taniguchi T., Shinogi Y.

Biochar 3 ( 1 ) 51 - 61 2021.03

Surface functionalization of biochar from oil palm empty fruit bunch through hydrothermal process Reviewed International journal

Ibrahim I., Tsubota T., Hassan M.A., Andou Y.

Processes 9 ( 1 ) 1 - 14 2021.01

Carbonization and H<inf>3</inf>PO<inf>4</inf> activation of fern Dicranopteris linearis and electrochemical properties for electric double layer capacitor electrode Reviewed International journal

Trinh T.K., Tsubota T., Takahashi S., Mai N.T., Nguyen M.N., Nguyen N.H.

Scientific Reports 10 ( 1 ) 2020.12

Kinetic and structural changes during gasification of cashew nut shell char particles Reviewed International journal

Nguyen H.N., Khuong D.A., Vu T.T.H., Mai T.N., Tsubota T., Tran V.B., Blin J., Van De Steene L.

Environmental Progress and Sustainable Energy 40 ( 3 ) 2020.12

Hydrochars as emerging biofuels: Recent advances and application of artificial neural networks for the prediction of heating values Reviewed International journal

Vardiambasis I.O., Kapetanakis T.N., Nikolopoulos C.D., Trang T.K., Tsubota T., Keyikoglu R., Khataee A., Kalderis D.

Energies 13 ( 17 ) 2020.09

Complete Parametric Study of Bagasse Pellets during High-Temperature Steam Gasification Reviewed

Nguyen H.N., Tsubota T.

Journal of Thermal Science and Engineering Applications 12 ( 4 ) 2020.08

Humidity adsorption characteristics of Moso bamboo charcoal oxidized at room temperature by HNO<inf>3</inf> Reviewed International journal

Viet D.D., Tsubota T., Shinogi Y.

Journal of the Indian Academy of Wood Science 17 ( 1 ) 34 - 41 2020.06

Release kinetics of potassium from silica-rich fern-derived biochars Reviewed International journal

Nguyen A.T.Q., Bui T.A., Mai N.T., Tran H.T., Tran S.V., Nguyen N.H., Tsubota T., Shinogi Y., Dultz S., Nguyen M.N.

Agronomy Journal 112 ( 3 ) 1713 - 1725 2020.05

KOH activation of solid residue of Japanese citron after extraction by microwave process and property as EDLC electrode Reviewed

Tsubota T., Hohshi Y., Ohno T., Kumagai S.

Journal of Porous Materials 27 ( 3 ) 727 - 734 2020.01

Fern Dicranopteris linearis-derived biochars: Adjusting surface properties by direct processing of the silica phase Reviewed

Mai N.T., Nguyen N.H., Tsubota T., Shinogi Y., Dultz S., Nguyen M.N.

Colloids and Surfaces A: Physicochemical and Engineering Aspects 583 2019.12

Preparation of Porous Carbon Material Derived from Cellulose with Added Melamine Sulfate and Electrochemical Performance as EDLC Electrode Reviewed

Tsubota T., Maguchi Y., Ishimoto K., Katamune Y., Kamimura S., Ohno T.

Journal of Electronic Materials 48 ( 2 ) 879 - 886 2019.02

Cascade use of bamboo as raw material for several high value products: production of xylo-oligosaccharide and activated carbon for EDLC electrode from bamboo Reviewed

Tsubota T., Ishimoto K., Kumagai S., Kamimura S., Ohno T.

Journal of Porous Materials 25 ( 5 ) 1541 - 1549 2018.10

Photoelectrochemical synthesis of aniline from nitrobenzene in a neutral aqueous solution by using a p-type Cu<inf>2</inf>ZnSnS<inf>4</inf>electrode Reviewed International journal

Kamimura S., Kubo Y., Tsubota T., Ohno T.

Applied Catalysis B: Environmental 225 445 - 451 2018.06

Solar-driven H<inf>2</inf>evolution over CuNb<inf>2</inf>O<inf>6</inf>: Effect of two polymorphs (monoclinic and orthorhombic) on optical property and photocatalytic activity Reviewed International journal

Kamimura S., Abe S., Tsubota T., Ohno T.

Journal of Photochemistry and Photobiology A: Chemistry 356 263 - 271 2018.04

P-57 Production of Furfural from Rice Straw under Hydrothermal Condition Reviewed

INOUE Seiichi, KUMAGAI Satoshi, TSUBOTA Toshiki

Proceedings of the Conference on Biomass Science ( The Japan Institute of Energy ) 13 ( 0 ) 159 - 160 2018.01

Language：Japanese Publishing type：Research paper (conference, symposium, etc.)

<p>Rice straw was treated under hydrothermal condition for producing furfural, which is one of the degradation products of hemicellulose. The highest furfural yield (19.6 mg/g-rice straw) was obtained at 220°C for 15min under hydrothermal condition. Main product was furfural, but the other oxygenated compounds, such as acetic acid and formic acid, were also obtained at this condition. When the phosphoric acid solution was added to the compressed water, the yield of furfural increased remarkably, and the highest yield (26.0 mg/g-rice straw) of the furfural was obtained at 220 °C for 15min. It is shown that addition of phosphoric acid solution to the compressed water provided the higher yield to obtain the furfural from rice straw.</p>

DOI： 10.20550/jiebiomassronbun.13.0_159

CiNii Article

CiNii Research

Performance as electrode of electrical double layer capacitor of activated carbon prepared from bamboo using guanidine phosphate and CO<inf>2</inf> activation Reviewed International journal

Tsubota T., Morita M., Kamimura S., Ohno T.

Journal of Porous Materials 24 ( 6 ) 1507 - 1512 2017.12

Platinum and indium sulfide-modified Cu<inf>3</inf>BiS<inf>3</inf>photocathode for photoelectrochemical hydrogen evolution Reviewed International journal

Kamimura S., Beppu N., Sasaki Y., Tsubota T., Ohno T.

Journal of Materials Chemistry A 5 ( 21 ) 10450 - 10456 2017.01

P-67 Produce of xylo-oligosaccharide and carbon electrode for electrical double layer capacitor by cascading of bamboo Reviewed

TSUBOTA Toshiki, ISHIMOTO Kotarou, KUMAGAI Satoshi, HATASHI Nobuyuki

Proceedings of the Conference on Biomass Science ( The Japan Institute of Energy ) 12 ( 0 ) 183 - 184 2017.01

Authorship：Lead author Language：Japanese Publishing type：Research paper (conference, symposium, etc.)

<p>In order to use bamboo as the starting material for some high-value products, the production of carbon material, which is activated carbon, for the electrode of electric double layer capacitor (EDLC) was attempted from the bamboo residue after the compressed hot water treatment, which can produce xylo-oligosaccharide from bamboo. The bamboo powder after the treatment of 200 degrees C for 1 hour was used as the starting material of carbon material. The yield from the residue to activated carbon was ca. 10 % regardless of the carbonization temperature. The estimated specific surface areas by BET method for the prepared samples were ca. 2500 m2/g, except for the sample carbonized at 800 degrees C. The capacitance values of the samples were small at high current density. The reason for the small values should be large IR drop.</p>

DOI： 10.20550/jiebiomassronbun.12.0_183

CiNii Article

CiNii Research

Partial delignification as pretreatment for nanoporous carbon material from biomass Reviewed International journal

Tsubota T., Nagata D., Kamimura S., Ohno T.

Journal of Nanoscience and Nanotechnology 17 ( 1 ) 815 - 820 2017.01

Photoelectrochemical CO<inf>2</inf>reduction by a p-type boron-doped g-C<inf>3</inf>N<inf>4</inf>electrode under visible light Reviewed International journal

Sagara N., Kamimura S., Tsubota T., Ohno T.

Applied Catalysis B: Environmental 192 193 - 198 2016.09

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