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2011 Fiscal Year Final Research Report

Preparation of manganese oxides with nanosize structu re for energy storage devices by electrochemical precipitation technic.

Research Project

  • PDF
Project/Area Number 21560885
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Energy engineering
Research InstitutionNara National College of Technology

Principal Investigator

KATAKURA Katsumi  奈良工業高等専門学校, 物質化学工学科, 教授 (80169466)

Project Period (FY) 2009 – 2011
Keywords電解沈降法 / 水酸化マンガン / LDH / 正極材料 / ナノ構造
Research Abstract

Electrochemical behavior of Mn(OH)_2 was successfully investigated using the electrochemically precipitated Mn(OH)_2.At the fast scan rate, reversible redox reaction proceeds among Mn(II)/Mn(III) system in KOH aq. accompanied with insertion and desorption of OH-but no alkali metal ions. At the slow scan rate, electrochemical insertion of alkali metal ions into electrochemically precipitated Mn(OH)_2 was confirmed during electrochemical oxidation. Layered Manganese and aluminum double hydroxides(Mn/Al LDH), the interlayer spacing of 0.88 nm, were electrochemically synthesized on a Pt substrate by galvanostatic electrochemical reduction of Mn(NO_3)_2 and Al(NO_3)_3 aqueous solutions mixtures. Though the dissolution of Al^<3+> in the LDHs occurred at the first electrochemical oxidation in a 2 mol dm^<-3> KOH solution, reversible redox peaks at around-0.2V vs. Hg/HgO were observed after 2^<nd> cycle of CVs.

  • Research Products

    (7 results)

All 2012 2011 2010 2009

All Presentation (7 results)

  • [Presentation] Electrochemical behavior of electrochemically precipitated manganese hydroxides2012

    • Author(s)
      C. Obayashi, Y. Kajiki, H. Yamada, K. Katakura and Z. Ogumi
    • Organizer
      16^<th> International Meeting on Lithium Batteries(IMLB2012)
    • Place of Presentation
      Korea
    • Year and Date
      2012-06-19
  • [Presentation] 電解沈降層状複合水酸化マンガンの電気化学的挙動2012

    • Author(s)
      大林千紘,石坂充,小西隆喜,梶木良之,山田裕久,片倉勝己
    • Organizer
      電気化学会第79回大会
    • Place of Presentation
      浜松
    • Year and Date
      2012-03-29
  • [Presentation] アルミニウム含有酸化マンガンの合成とその酸化還元挙動2011

    • Author(s)
      片倉勝己,石坂充,大林千紘,中尾光彦,山田裕久
    • Organizer
      第52回電池討論会
    • Place of Presentation
      東京
    • Year and Date
      2011-10-20
  • [Presentation] アルミニウム含有酸化マンガンの合成とその電気化学挙動2011

    • Author(s)
      梶木良之,小西隆喜,中尾光彦,山田裕久,片倉勝己
    • Organizer
      電気化学会第78回大会
    • Place of Presentation
      横浜
    • Year and Date
      2011-03-29
  • [Presentation] Lithium Insertion into Electrochemically Precipitated Manganese Hydroxide2010

    • Author(s)
      K. Katakura, Y. Kajiki, H. Yamada, and Z. Ogumi
    • Organizer
      218th ECS Meeting
    • Place of Presentation
      Las Vegas, USA
    • Year and Date
      2010-10-12
  • [Presentation] 電解沈降水酸化マンガンへの電気化学的リチウム挿入2010

    • Author(s)
      梶木良之、片倉勝己,小久見善八
    • Organizer
      2010年電気化学会第77回大会
    • Place of Presentation
      富山
    • Year and Date
      2010-03-30
  • [Presentation] Lithium Insertion into Electrochemically Precipitated Manganese Hydroxide2009

    • Author(s)
      K. Katakura, Y. Kajiki, and Z. Ogumi
    • Organizer
      2nd International Conference on Advanced Lithium Batteries for Automobile Applications
    • Place of Presentation
      Tokyo
    • Year and Date
      2009-11-28

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Published: 2013-07-31  

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