Katayama, Yasushi

写真a

Affiliation

Faculty of Science and Technology, Department of Applied Chemistry (Yagami)

Position

Professor

E-mail Address

E-mail address

Related Websites

External Links

Career 【 Display / hide

  • 1996.04
    -
    Present

    慶應義塾大学(理工学部) ,助手

  • 2001.04
    -
    Present

    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
    -
    Present

    慶應義塾大学(理工学部) ,准教授

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

  • Dr. Eng, Kyoto University, Coursework, 1996.03

 

Research Areas 【 Display / hide

  • Inorganic industrial materials (Inorganic Industrial Material)

  • Device related chemistry (Functional Materials/Device)

 

Books 【 Display / hide

  • 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

  • Electrochemistry of Ionic Liquids - Fundamentals and Applications -

    KATAYAMA YASUSHI, Springer, 2015

  • 第6版電気化学便覧

    KATAYAMA YASUSHI, 丸善出版, 2013.01

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Papers 【 Display / hide

  • Electropolishing of Tin in an Amide-Type Ionic Liquid

    Yuza N., Serizawa N., Katayama Y.

    Journal of the Electrochemical Society (Journal of the Electrochemical Society)  168 ( 3 )  2021.03

    ISSN  00134651

     View Summary

    Anodic dissolution and electropolishing of Sn were investigated in an amide-type ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide. The rate of anodic dissolution was considered to be determined by the diffusion of anodically dissolved Sn(II) species. A large increase in the local viscosity during dissolution was observed in-situ by the impedance-type electrochemical quartz crystal microbalance, reflecting an increase in the local concentration of Sn(II) near the electrode. A shiny and smooth surface was obtained after anodic dissolution at 0.1 V vs Ag|Ag(I) with agitation. A decrease in the surface roughness estimated by confocal laser scanning microscopy suggested electropolishing of Sn was possible in the ionic liquid within the electrochemical potential window probably due to the formation of the viscous layer near the electrode.

  • The effects of the position of the ether oxygen atom in pyrrolidinium-based room temperature ionic liquids on their physicochemical properties

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

    Physical Chemistry Chemical Physics (Physical Chemistry Chemical Physics)  22 ( 35 ) 19480 - 19491 2020.09

    ISSN  14639076

     View Summary

    Room temperature ionic liquids (RTILs) containing ether oxygen atoms have been investigated for a gamut of science and technology applications owing to their superior physicochemical properties. However, the effect of the position of the ether oxygen atom in the side chain on their physicochemical properties is not clearly understood. This study investigates, using both experimental and computational approaches, the effect of ether oxygen atoms on the physicochemical properties of RTILs consisting of bis(trifluoromethylsulfonyl)amide (TFSA-) with 1-methyl-1-propylpyrrolidinium (MPP+), 1-butyl-1-methylpyrrolidinium (BMP+), 1-methoxymethyl-1-methylpyrrolidinium (MOMMP+), 1-ethoxymethyl-1-methylpyrrolidinium (EOMMP+), and 1-methoxyethyl-1-methylpyrrolidinium (MOEMP+). The viscosity of the RTILs containing the ether oxygen atom was lower than that of the alkyl analogues. Moreover, the viscosity of EOMMPTFSA was lower than that of MOEMPTFSA, albeit EOMMPTFSA and MOEMPTFSA have the same molecular weight with ether oxygen atoms at different positions. Ab initio calculations reveal that the number of methylene groups between nitrogen and oxygen atoms in the cation structure profoundly impacts the local stable structure of the cation. Furthermore, we discussed the relationship between the transport properties and the spatial distribution of ions obtained by MD simulations. This result will be valuable in the design of functionalized RTILs, via the judicious tuning of the conformational flexibility of ether oxygen atoms in related ionic liquids.

  • Electrochemical Preparation of Cobalt-Samarium Nanoparticles in an Aprotic Ionic Liquid

    Manjum M., Serizawa N., Ispas A., Bund A., Katayama Y.

    Journal of the Electrochemical Society (Journal of the Electrochemical Society)  167 ( 4 )  2020.03

    ISSN  00134651

     View Summary

    Electrochemical preparation of Co-Sm nanoparticles was conducted in an aprotic room temperature ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) containing Co(TFSA) and Sm(TFSA) . The cyclic voltammetry on a glassy carbon (GC) electrode indicated the electrochemically generated Sm(II) reacted with Co(II) at 25 C. Potentiostatic cathodic reduction on a GC electrode in BMPTFSA containing 30 mM Co(TFSA) and 5 mM Sm(TFSA) at 25 C gave the deposits, which were found to be composed of Co and Sm by energy dispersive X-ray spectroscopy (EDX). The deposits were found to be the aggregates of SmCo nanoparticles by transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The formation of SmCo nanoparticles dispersed in the ionic liquid was also confirmed by TEM. SmCo nanoparticles were considered to form by the disproportionation reaction of Sm(II) in the presence of elementary Co, which was formed by the reduction of Co(II) by Sm(II). 2 3 2 3 7 7 7

  • Redox Reaction of 2,2,6,6,-Tetramethylpiperidine-1-oxyl in Lithium Bis(trifluoromethylsulfonyl)amide-tetraglyme Solvate Ionic Liquid

    Serizawa N., Wada K., Tachikawa N., Katayama Y.

    Journal of the Electrochemical Society (Journal of the Electrochemical Society)  167 ( 4 )  2020.03

    ISSN  00134651

     View Summary

    The electrode reaction of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) was investigated in a solvate ionic liquid composed of lithium bis(trifluoromethylsulfonyl)amide (LiTFSA) and tetraglyme (G4), [Li(G4)]TFSA. A quasi-reversible redox reaction of the oxoammonium (TEMPO ) and TEMPO was observed with a formal potential of 0.19 V vs ferrocene|ferrocenium. The diffusion coefficient of TEMPO (2.1 × 10 cm s ) was smaller than that of neutral TEMPO (1.3 × 10 cm s ), reflecting the coulombic interaction between monovalent TEMPO and TFSA in the solvate ionic liquid. The standard rate constant for TEMPO /TEMPO redox reaction was estimated to be 1.9 × 10 cm s at 25 C by electrochemical impedance spectroscopy. The solubility of TEMPO in [Li(G4)]TFSA was found to be 4.4 M at 25 C. + + -8 2 -1 -7 2 -1 + - + -4 -1

  • Characterization of the Solid-Electrolyte Interphase between a Cu Electrode and LiN(CF<inf>3</inf>SO<inf>2</inf>)<inf>2</inf>-triglyme Solvate Ionic Liquid

    Serizawa N., Kitta K., Tachikawa N., Katayama Y.

    Journal of the Electrochemical Society (Journal of the Electrochemical Society)  167 ( 11 )  2020.01

    ISSN  00134651

     View Summary

    The formation of the solid electrolyte interphase (SEI) on a Cu electrode was investigated in 50.0-50.0 mol% lithium bis(trifluoromethylsulfonyl)amide (LiTFSA)-triglyme (G3, CH3(OCH2CH2)3OCH3) solvate ionic liquid, [Li(G3)]TFSA, using electrochemical impedance spectroscopy (EIS), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy (FT-IR). The Li+ conductive SEI was formed on a Cu electrode by keeping the potential at 0 V vs Li|Li(I). The resistance and capacitance attributable to the SEI changed over a period of 24 h in EIS spectra, suggesting the sluggish SEI formation on the Cu electrode in [Li(G3)]TFSA. XPS and FT-IR spectra indicated the existence of G3, TFSA-, [Li(G3)]+, and/or their decomposition products in the SEI. In contrast, LiF was not found in the SEI, suggesting LiF was not formed by the cathodic decomposition of [Li(G3)]TFSA on the Cu electrode at 0 V. The whisker-like growth of Li on a Cu electrode was suppressed after the SEI formation at 0 V probably due to the formation of homogeneous and low-conductive SEI layer. The coulombic efficiency for deposition and dissolution of Li was improved with the SEI formation at 0 V prior to the measurements, suggesting the SEI on a Cu electrode affected the reversibility of the Li anode.

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

Reviews, Commentaries, etc. 【 Display / hide

Presentations 【 Display / hide

  • 室温溶融塩を含浸させたNafion膜の高温特性

    後藤 新,片山 靖,美浦 隆

    電気化学会第73回大会 (東京) , 2006.04, Oral Presentation(general)

  • 塩化カルシウム系溶融塩中における二酸化チタンの電気化学的還元

    渡部 一貴, 片山 靖, 美浦 隆

    電気化学会第73回大会 (東京) , 2006.04, Oral Presentation(general)

  • イミド系室温溶融塩中における鉄化学種の電極反応速度

    立川直樹,片山 靖,美浦 隆

    電気化学会第73回大会 (東京) , 2006.04, Oral Presentation(general)

  • 疎水性室温溶融塩中におけるジメチルエーテルの酸化

    片山 靖,小林隆文,美浦 隆

    電気化学会第73回大会 (東京) , 2006.04, Oral Presentation(general)

  • 疎水性室温イオン液体からのコバルトの電析挙動

    #H片山 靖#H,福井隆太,美浦 隆

    表面技術協会第113回講演大会 (埼玉) , 2006.03, Oral Presentation(general)

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Awards 【 Display / hide

  • 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: Awards of National Conference, Council and Symposium.  Country: 日本

  • 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: Awards of National Conference, Council and Symposium.  Country: 日本

 

Courses Taught 【 Display / hide

  • SEMINAR IN APPLIED CHEMISTRY

    2021

  • SCIENCE OF ATOMIC ENERGY

    2021

  • PHYSICAL CHEMISTRY OF REACTION KINETICS

    2021

  • NANO SCALE SCIENCE JOINT SEMINAR

    2021

  • MATERIAL DESIGN SCIENCE JOINT SEMINAR

    2021

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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

  • 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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