Research Achievements - Original paper -

Distribution of Sulfur during Solvent Extraction of Coals and Desulfurization of Extracted Product

Katsuyasu Sugawara, Takahiro Kato, Hirokazu Okawa, Nakorn Worasuwannarak

Journal of Chemical Engineerig of Japan   52 ( 7 ) 610 - 615   2019.07  [Refereed]

Research paper (journal)   International Co-author

DOI

Synthesis of Porous γ-Fe₂O₃ via Alkaline Treatment of Size Controlled Scorodite Particles Synthesized Using Ultrasound Irradiation and Its Evaluation as a Cathode for Lithium-Ion Battery₂

Yuya Kitamura, Hirokazu Okawa, Kozo Shinoda, Takahiro Kato, Katsuyasu Sugawara, and Shigeru Suzuki

Japanese Journal of Applied Physics   58   SGGD03-1 - SGGD03-7   2019.06  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Effect of Ultrasound Irradiationon Deposition of Au nanoparticles on Carbon-coated cathode material

Yasuyuki Tanaka, Hirokazu Okawa, Yuki Ono, Turtogtokh Enkhtuya, Tsermaa Galya, Takahiro Kato, Katsuyasu Sugawara

Japanese Journal of Applied Physics   58   SGGD17-1 - SGGD17-6   2019.06  [Refereed]

Research paper (journal)   International Co-author

DOI

Separation and Desulfurization of Bitumen from Oil Sand Using Oxidation Combined with Ultrasound

Hirokazu Okawa, Nobuyuki Akazawa, Takahiro Kato, and Katsuyasu Sugawara

Japanese Journal of Applied Physics   58   SGGD01-1 - SGGD01-3   2019.05  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Sonochemical synthesis of au nanoparticles on lifePO₄/C and the evaluation of its battery performance

Hirokazu Okawa, Yuki Ono, Yasuyuki Tanaka, Takahiro Kato, Katsuyasu Sugawara

Journal of the Society of Powder Technology, Japan   56 ( 3 ) 117 - 122   2019.03  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Development of efficient recovery process for precious metals from e-waste

Kosuke Sakusabe, Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara

Journal of the Society of Powder Technology, Japan   56 ( 3 ) 130 - 135   2019.03  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Desorption of Carbon Dioxide from Monoethanolamine Solution Using Ultrasound and Calcium Chloride

Fujiwara Tatsuo, Okawa Hirokazu, Kato Takahiro, Sugawara Katsuyasu

Journal of MMIJ   135 ( 1 ) 1 - 7   2019.01  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Utilization of carbon dioxide to synthesize large scorodite particles under ultrasound irradiation

Yuya Kitamura, Hirokazu Okawa, Takahiro Kato, Katsuyasu Sugawara

Japanese Journal of Applied Physics   57   07LB15-1 - 07LB15-5   2018.06  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Simultaneous Recovery and Desulfurization of Bitumen from Oil Sand Using Ultrasound Irradiation

Hirokazu Okawa, Wan Mohamad Ikhwan bin Wan Kamal, Nobuyuki Akazawa, Takahiro Kato, and Katsuyasu Sugawara

Japanese Journal of Applied Physics   57 ( 7S1 ) 07LE09-1 - 07LE09-3   2018.06  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Behavior of Sulfur in Liquid Phase Oxidation of Coal

Takahiro Kato, Yuki Nagai, Hirokazu Okawa, and Katsuyasu Sugawara

Journal of the Japan Institute of Energy   97 ( 4 ) 88 - 96   2018.04  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Utilization of layered double hydroxide to remove arsenic and suppress pH decrement during ultrasound oxidation of arsenious acid

Yasuyuki Tanaka, Hirokazu Okawa, Yuya Takahashi, Takahiro Kato, and Katsuyasu Sugawara

Japanese Journal of Applied Physics   57 ( 7S1 ) 07LE02-1 - 07LE02-5   2018.04  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Recovery of Gold and Silver from an Incinerated Spent Printed Circuit Board Using Chlorination

Kosuke Sakusabe, Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara

Journal of Chemical Engineering of Japan   51 ( 8 ) 704 - 710   2018.03  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Ultrasound-assisted oxidative desulfurization of bitumen

Wan Mohamad Ikhwan bin Wan Kamal, Hirokazu Okawa, Takahiro Kato, Katsuyasu Sugawara

Japanese Journal of Applied Physics   56   07JE03-1 - 07JE03-3   2017.06  [Refereed]

Research paper (journal)   Domestic Co-author

超音波と塩化カルシウムを用いたモノエタノールアミン溶液からの二酸化炭素の脱離

藤原達央，大川浩一，加藤貴宏，菅原勝康:

石油技術協会誌   81 ( 5 ) 418 - 419   2016.11

Research paper (journal)   Single author

Improved battery performance using Pd nanoparticles synthesized on the surface of LiFePO₄/C by ultrasound irradiation

Muhammad Ali Saliman, Hirokazu Okawa, Misaki Takai, Yuki Ono, Takahiro Kato, Katsuyasu Sugawara, Mineo Sato

Japanese Journal of Applied Physics   55   07KE05-1 - 07KE05-7   2016.05  [Refereed]

Research paper (journal)   Domestic Co-author

Selective Recovery of Gold from Incinerated Sewage Sludge Ash

Katsuyasu Sugawara, Kosuke Sakusabe, Takahiro Kato, Hirokazu Okawa

Journal of the Society of Powder Technology, Japan   53   136 - 141   2016.03  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Effect of ultrasound intensity on the size and morphology of synthesized scorodite particles

Yuya Kitamura, Hirokazu Okawa, Takahiro Kato, Katsuyasu Sugawara

Advanced Powder Technology   27 ( 3 ) 891 - 897   2016.02  [Refereed]

Research paper (journal)   Domestic Co-author

Recovery of Valuable Elements from Spent Printed Circuit

Takahiro Kato, Katsuyasu Sugawara and Takashi Nakamura

Journal of Chemical Engineering of Japan   49 ( 1 ) 60 - 67   2016.01  [Refereed]

Research paper (journal)   Domestic Co-author

Release Behavior and Chemical-Form Change of Lead in Molten Fly Ashes during Heat Treatment

KAGAKU KOGAKU RONBUNSHU   41 ( 4 ) 259 - 264   2015.07  [Refereed]

Research paper (journal)   Domestic Co-author

Desorption of CO₂ from low concentration monoethanolamine solutions using calcium chloride and ultrasound irradiation

Kosuke Tanaka, Hirokazu Okawa, Tatsuo Fujiwara, Takahiro Kato, Katsuyasu Sugawara

Japanese Journal of Applied Physics   54   07HE08   2015.07  [Refereed]

Research paper (journal)   Single author