KEIO RESEARCHERS INFORMATION SYSTEM

Career 【 Display / hide 】

Career 【 Display / hide 】

• 1996.04

  -

  2001.03

  慶應義塾大学（理工学部） ,助手

• 2001.04

  -

  2007.03

  慶應義塾大学（理工学部） ,専任講師

• 2003.09

  -

  2004.09

  Guest researcher, RWTH Aachen, Germany

• 2007.04

  -

  2014.03

  慶應義塾大学（理工学部） ,准教授

• 2014.04

  -

  Present

  慶應義塾大学（理工学部） ,教授

Academic Background 【 Display / hide 】

Academic Background 【 Display / hide 】

• 1991.03

  Tohoku University, Faculty of Engineering, Nuclear Engineering

  University, Graduated

• 1993.03

  Kyoto University, Graduate School of Engineering, Divition of Nuclear Engineering

  Graduate School, Completed, Master's course

• 1996.03

  Kyoto University, Graduate School of Engineering, Division of Nuclear Engineering

  Graduate School, Completed, Doctoral course

Academic Degrees 【 Display / hide 】

Academic Degrees 【 Display / hide 】

• Dr. Eng, Kyoto University, Coursework, 1996.03

Research Areas 【 Display / hide 】

Research Areas 【 Display / hide 】

• Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electron device and electronic equipment (Functional Materials/Device)

• Nanotechnology/Materials / Inorganic compounds and inorganic materials chemistry (Inorganic Industrial Material)

Books 【 Display / hide 】

Books 【 Display / hide 】

• The Latest Trend of the Development and Implementation of Ionic Liquids

  片山　靖, 2022.08

• Lithium Metal Anode

  Tachikawa N., Serizawa N., Katayama Y., Next Generation Batteries: Realization of High Energy Density Rechargeable Batteries, 2021.01

  　View Summary

  Deposition and dissolution of lithium metal have been investigated in an equimolar mixture of lithium bis(trifluoromethylsulfonyl)amide (LiTFSA) and glyme [triglyme (G3) or tetraglyme (G4)] solvate ionic liquid. The limiting current for deposition of lithiumwas not observed probably because of the high concentration of lithium species and a decrease in the local viscosity by the liberation of glyme. On the other hand, the dissolution of lithium was limited due to an increase in the local viscosity by the formation of [Li(TFSA)2]–. The formation of solid electrolyte interphase (SEI) was suggested to form by the cathodic decomposition of the solvate ionic liquids by electrochemical quartz crystal microbalance. Lithium phosphorous oxynitride (LiPON) thin film was found to act as the artificial SEI, which prevented the cathodic decomposition of the solvate ionic liquids and enabled the deposition and dissolution of lithium. The cycle performance of deposition and dissolution of lithiumwas found to be improved by coating a Cu substratewith vapor-grown carbon fiber.

  • Access to Document (DOI)

• Development Trend of Redox Flow Battery

  KATAYAMA YASUSHI, シーエムシー出版, 2017.09

• イオン液体研究最前線と社会実装

  KATAYAMA YASUSHI, シーエムシー出版, 2016

• Nanocatalysis in Ionic Liquids

  KATAYAMA YASUSHI, Wiley-VCH, 2016

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Papers 【 Display / hide 】

Papers 【 Display / hide 】

• Formation and Aging of the Solid Electrolyte Interphase on Lithium in Bis(fluorosulfonyl)amide-Type Ionic Liquids

  Serizawa N., Yamashita R., Katayama Y.

  Journal of Physical Chemistry C (Journal of Physical Chemistry C)  127 ( 22 ) 10434 - 10444 2023.06

  ISSN  19327447

  　View Summary

  The formation and aging of the solid electrolyte interphase (SEI) formed on a Li and Cu electrode in two bis(fluorosulfonyl)amide (FSA-)-type ionic liquids (ILs), 1-methyl-1-butylpyrrolidinium bis(fluorosulfonyl)amide and 1-methyl-1-methoxyethylpyrrolidinium bis(fluorosulfonyl)amide, containing a high concentration of LiFSA were investigated using electrochemical impedance spectroscopy, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and scanning electron microscopy. The intensity of peaks corresponding to the decomposition of the electrolyte in XPS spectra changed with time. The thicknesses of the SEI formed on a Cu electrode in both ILs were estimated to be 20-100 nm by TEM observation. The resistance of SEI increased with the lapse of time although the change in the thickness of the SEI was small, suggesting the aging of the SEI in the ILs was considered to depend on the composition of the SEI rather than the thickness of the SEI. The Li deposits shrank during dissolution. The Li anode became sparse and porous after deposition and dissolution cycles, probably due to the inhomogeneous reaction through the aged SEI. The SEI formation on the surface of the porous deposits was considered to lead to an increase in the polarization and the isolation of the deposits, i.e., the formation of “dead lithium”.

  • Access to Document (DOI)

• Redox Reactions of Ag(I)/Ag and Ferrocenium/Ferrocene in 1-Butyl-1-methylpyrrolidinium Bis(fluorosulfonyl)amide Ionic Liquid

  Kato S., Serizawa N., Katayama Y.

  Journal of the Electrochemical Society (Journal of the Electrochemical Society)  170 ( 4 )  2023.04

  ISSN  00134651

  　View Summary

  The electrode reactions of Ag(I)/Ag and ferrocenium/ferrocene (Fc+/Fc) were investigated in an ionic liquid, 1-butyl-1-methylpyrrolidinium bis(fluorosulfonyl)amide (BMPFSA). The potential of Ag(I)/Ag depended on the logarithm of the concentration of Ag(I), as predicted by the Nernst equation, indicating the Ag(I)/Ag can be used as a reference electrode reaction in BMPFSA. The reversible electrode reaction of Fc+/Fc was observed in BMPFSA by cyclic voltammetry. The donor number of BMPFSA was estimated to be 13 from the difference in the formal potentials of Ag(I)/Ag and Fc+/Fc, indicating the coordination ability of FSA- was slightly stronger than that of bis(trifluoromethylsulfonyl)amide (TFSA-). The diffusion coefficients (D) of Fc and Fc+ were (5.7 ± 0.7) and (3.3 ± 0.2) × 10-7 cm2 s-1, respectively. The ratio of D of Fc+ against that of Fc was smaller than those in TFSA--type ionic liquids, reflecting the higher charge density of FSA-. The standard rate constant (k 0) of Fc+/Fc was estimated to be (5.4 ± 1.1) × 10-3 cm s-1. The apparent activation energy for k 0 was close to the activation energy for D, suggesting the electrode reaction of Fc+/Fc can be regarded as the outer sphere electron transfer reaction with a very small reorganization energy.

  • Access to Document (DOI)

• Solid-Electrolyte Interphase Formation in Amide-Type Ionic Liquids in the Presence of Different Metal Cations

  Kato S., Serizawa N., Katayama Y.

  Journal of the Electrochemical Society (Journal of the Electrochemical Society)  170 ( 5 )  2023

  ISSN  00134651

  　View Summary

  The formation of solid-electrolyte interphase (SEI) on a glassy carbon (GC) electrode in 1-butyl-1-methylpyrrolidinium bis(fluorosulfonyl)amide (BMPFSA) and 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) containing Li+, Na+, K+, and Ni2+ was investigated using the redox reaction of ferrocene (Fc). The anodic peak potential (E pa) for the oxidation of Fc changed after holding the electrode at -1.4 to -1.5 V vs Ag|Ag(I) in BMPFSA in the presence of the alkali metal ions. The decomposition of FSA- was confirmed by X-ray photoelectron spectroscopy (XPS) on a GC electrode held at -1.5 V vs Ag|Ag(I) for 6 h in BMPFSA containing the alkali metal ions. The change in E pa may also suggest the formation of homogeneous SEI in the FSA--type ionic liquid. Moreover, E pa changed after holding the electrode at the potential more negative than -0.9 V vs Ag|Ag(I) in 50 mM Ni(TFSA)2/BMPTFSA while the decomposition of TFSA- was not confirmed by XPS on the electrode held at -1.1 V vs Ag|Ag(I) for 6 h, suggesting the bonds except C-F (e.g., S-C) were dissociated to form the SEI. Since the deposition potential of Ni in BMPTFSA was more negative than the SEI formation potential, the deposition of Ni may be inhibited by the SEI.

  • Access to Document (DOI)

• Electrochemical Behavior of Silver Halogenocomplexes in an Amide-Type Ionic Liquid

  Serizawa N., Kuwahara S., Katayama Y.

  Journal of the Electrochemical Society (Journal of the Electrochemical Society)  169 ( 9 )  2022.09

  ISSN  00134651

  　View Summary

  The electrode reactions of haloargentates were investigated in an aprotic and hydrophobic amide-type ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) in the presence of the halide ions. Silver halides, AgX (X- = Cl-, Br-, and I-) were found to be soluble in BMPTFSA containing 0.5 M BMPX to form halogenocomplex, [AgX3]2-. The cathodic reduction of [AgX3]2- to metallic Ag was observed within the electrochemical potential window of the ionic liquid, while the reduction potential was lower than that in the ionic liquid in the absence of X-. The equilibrium potentials of [AgX3]2-/Ag were in the order of [AgCl3]2- > [AgBr3]2- > [AgI3]2-, probably reflecting the thermodynamic stability of the complexes. The diffusion coefficients of [AgCl3]2-, [AgBr3]2-, and [AgI3]2- were 2.5, 2.0, and 1.6 × 10-7 cm2 s-1, respectively. The morphology of deposits strongly depended on the reduction potential. The nucleation and growth mechanism of Ag deposition was considered to be progressive rather than instantaneous. Formation of Ag nanoparticles dispersed in the ionic liquids was confirmed after potentiostatic cathodic reduction at -2.5 V vs Ag|Ag(I) using a transmission electron microscope.

  • Access to Document (DOI)

• Communication - Determination of the Formation Potential of Solid-Electrolyte Interphase in Amide-Type Ionic Liquids Containing Lithium Salts

  Kato S., Serizawa N., Katayama Y.

  Journal of the Electrochemical Society (Journal of the Electrochemical Society)  169 ( 7 )  2022.07

  ISSN  00134651

  　View Summary

  The formation potentials of solid-electrolyte interphase (SEI) were investigated in 1-butyl-1-methylpyrrolidinium bis(fluorosulfonyl)amide (BMPFSA) and 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) containing LiFSA and LiTFSA, respectively, by monitoring the redox reaction of ferrocene with high sensitivity. The SEI was found to affect the electrode kinetics of the outersphere electron transfer reaction. The SEIs with the thickness of less than a few nm formed in LiFSA/BMPFSA and LiTFSA/BMPTFSA at 2.4 and 2.5 V vs Li|Li(I), respectively. The cathodic decomposition of FSA- and TFSA- was considered to be promoted by the interaction with Li+ based on the ab-initio calculation.

  • Access to Document (DOI)

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Papers, etc., Registered in KOARA 【 Display / hide 】

Papers, etc., Registered in KOARA 【 Display / hide 】

• Laser irradiation-induced micro pillar generation and its application to the fabrication of next-generation Li-ion battery

  Katayama, Yasushi

  科学研究費補助金研究成果報告書 2018

• Development of new surface finishing technology using ionic liquids

  Katayama, Yasushi

  科学研究費補助金研究成果報告書 2009

Reviews, Commentaries, etc. 【 Display / hide 】

Reviews, Commentaries, etc. 【 Display / hide 】

• Erratum: The effects of the position of the ether oxygen atom in pyrrolidinium-based room temperature ionic liquids on their physicochemical properties (Physical Chemistry Chemical Physics (2020) DOI: 10.1039/d0cp02662j)

  Yoshii K., Uto T., Tachikawa N., Katayama Y.

  Physical Chemistry Chemical Physics (Physical Chemistry Chemical Physics)  22 ( 29 )  2020.08

  ISSN  14639076

  　View Summary

  The authors would like to update Fig. 4 to correct an error in the published version where the closed and open rhombus notations were reversed in Fig. 4(b). The correct version is shown below.(Figure Persented).The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.

  • Access to Document (DOI)

• PRiME 2020 - Beyond the global crisis

  Katayama Y.

  Denki Kagaku (Denki Kagaku)  88 ( 3 )  2020.05

  ISSN  24333255

  • Access to Document (DOI)

• 電気化学QCMによるイオン液体中における金属析出・溶解反応の解析

  芹澤信幸, 片山 靖

  表面技術 69   10 - 15 2018

  Article, review, commentary, editorial, etc. (scientific journal), Joint Work

Presentations 【 Display / hide 】

Presentations 【 Display / hide 】

• Electrode Kinetics of the Redox Reaction of Tris(2,2'-bipyridine)nickel Complexes in an Ionic Liquid

  Yasushi Katayama, Yuichi Toshimitsu, and Takashi Miura

  9th International Symposium on Electrochemical Impedance Spectroscopy, 

  2013.06

  , 

  Oral presentation (general)

• Effects of the Charge Density of the Anions of Ionic Liquids on the Electrode Kinetics of Ruthenium 2,2'-bipyridine Complexes

  Yasushi Katayama, Yuichi Toshimitsu, Takashi Miura

  222nd ECS meeting (PRiME 2012), 18th International Symposium on Molten Salts, 

  2012.10

  , 

  Oral presentation (general)

• Electrode Reactions of Platinum Bromide Complexes in an Amide-type Ionic Liquid

  Tomoyuki Endo, Yasushi Katayama, Takashi Miura

  222nd ECS meeting (PRiME 2012), 18th International Symposium on Molten Salts, 

  2012.10

  , 

  Poster presentation

• Electrode Kinetics of Oxygen / Superoxide Ion Redox Couple in Some Amide-type Ionic Liquids

  Takashi Nakagawa, Yasushi Katayama, Takashi Miura

  222nd ECS meeting (PRiME 2012), 18th International Symposium on Molten Salts, 

  2012.10

  , 

  Poster presentation

• Reaction Entropies of Some Redox Couples in Ionic Liquids

  Yoshinori Yamato, Yasushi Katayama, Takashi Miura

  222nd ECS meeting (PRiME 2012), 18th International Symposium on Molten Salts, 

  2012.10

  , 

  Poster presentation

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Research Projects of Competitive Funds, etc. 【 Display / hide 】

Research Projects of Competitive Funds, etc. 【 Display / hide 】

• 核変換による高レベル放射性廃棄物の大幅な低減・資源化」・分離回収技術開発プロジェクト

  2015

  -

  2019

  内閣府, 革新的研究開発推進プログラム（ImPACT）, No Setting

• 次世代高性能リチウム硫黄電池の開発

  2013

  -

  2023

  科学技術振興機構, 戦略的創造研究推進事業 先端的低炭素化技術開発（ALCA）特別重点技術領域「次世代蓄電池」, No Setting

• グリーンイノベーションのための分子ナノテクノロジー拠点形成

  2012

  -

  2016

  文部科学省, 戦略的研究基盤形成支援事業, Coinvestigator(s)

• イオン液体からの金属電析とその応用

  2009

  財団法人天野工業技術研究所, Principal investigator

• 次世代自動車用高性能蓄電システム技術開発／次世代技術開発／イオン液体電解液を用いたリチウム二次電池の研究開発

  2008

  -

  2011

  新エネルギー・産業技術総合開発機構, Coinvestigator(s)

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Awards 【 Display / hide 】

Awards 【 Display / hide 】

• 電気化学会フェロー

  2022.02

  Type of Award： Award from Japanese society, conference, symposium, etc.

• 砥粒加工学会論文賞

  砂場 勇輝, 立川 直樹, 片山 靖, 閻 紀旺, 2020.02, 公益社団法人砥粒加工学会, シリコン切りくずと金属微粒子の高圧焼結によるポーラス複合構造体の創製

  Type of Award： Award from Japanese society, conference, symposium, etc.

• 第32回（2017年度）溶融塩賞

  2018.01, 公益社団法人電気化学会溶融塩委員会, イオン液体を用いた電気化学的研究

  Type of Award： Award from Japanese society, conference, symposium, etc.

Courses Taught 【 Display / hide 】

Courses Taught 【 Display / hide 】

• SEMINAR IN APPLIED CHEMISTRY

  2024

• SCIENCE OF ATOMIC ENERGY

  2024

• PHYSICAL CHEMISTRY OF REACTION KINETICS

  2024

• NANO SCALE SCIENCE JOINT SEMINAR

  2024

• MATERIAL DESIGN SCIENCE JOINT SEMINAR

  2024

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Memberships in Academic Societies 【 Display / hide 】

Memberships in Academic Societies 【 Display / hide 】

• 表面技術協会, 

  2000.09

  -

  Present

• Electrochemical Society, 

  1998.08

  -

  Present

• DV-Xa 研究協会, 

  1995.01

  -

  Present

• (社)電気化学会, 

  1994.01

  -

  Present

• (社)日本原子力学会, 

  1992.12

  -

  Present

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Committee Experiences 【 Display / hide 】

Committee Experiences 【 Display / hide 】

• 2000.09

  -

  Present

  会員, 表面技術協会

• 1998.08

  -

  Present

  Active Member, Electrochemical Society

• 1995.01

  -

  Present

  会員, DV-Xa 研究協会

• 1994.01

  -

  Present

  会員, (社)電気化学会

• 1992.12

  -

  Present

  会員, (社)日本原子力学会

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