The amorphous structure of nanometric amorphous iron o xide of bacterial origin and its potential use as Li-ion battery electrodes.

• Project/Area Number: 22860040
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Inorganic materials/Physical properties
• Research Institution: Okayama University
• Principal Investigator: HASHIMOTO Hideki 岡山大学, 大学院・自然科学研究科, 助教 (60579556)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,042,000 (Direct Cost: ¥2,340,000、Indirect Cost: ¥702,000); Fiscal Year 2011: ¥1,404,000 (Direct Cost: ¥1,080,000、Indirect Cost: ¥324,000); Fiscal Year 2010: ¥1,638,000 (Direct Cost: ¥1,260,000、Indirect Cost: ¥378,000)
• Keywords: 鉄バクテリア / ナノ粒子 / 非晶質 / Liイオン電池 / バイオジナス酸化鉄 / コンバージョン反応

Research Abstract

We investigated structural features and electrochemical properties of iron oxide produced by iron-oxidizing bacteria. This material has a unique nano-and micro-architectural structure : the structure is primarily composed of 3-nm-nanoparticles and these primary particles are mildly aggregated to form secondary particles with several tens of nanometer and these secondary particles are finally aggregated to form microtubules~ 1μm in diameter. This natural nanometric iron oxide has a very large capacity and excellent cyclability and rate capability for Li-ion battery electrode.

Research Products

• [Journal Article] Two Types of Morphologically Distinct Fibers Comprising Gallionella ferruginea Twisted Stalks (2012)
  • Author(s): T. Suzuki, H. Hashimoto, H. Ishihara, N. Matsumoto, H. Kunoh, J. Takada
  • Journal Title: Microbes and Environments Volume: (In press)
  • NAID: 10030869827
  • Peer Reviewed
• [Journal Article] Silicon and Phosphorus Linkage with Iron via Oxygen in the Amorphous Matrix of Gallionella ferruginea Stalks (2012)
  • Author(s): T.Suzuki, H.Hashimoto, et al
  • Journal Title: Applied and Environmental Microbiology Volume: 78 Issue: 1 Pages: 236-241
  • DOI: 10.1128/aem.05913-11
  • Peer Reviewed
• [Journal Article] Two Types of Morphologically Distinct Fibers Comprising Gallionella ferruginea Twisted Stalks (2012)
  • Author(s): T.Suzuki, H.Hashimoto, et al
  • Journal Title: Microbes and Environments Volume: (In press)
  • NAID: 10030869827
  • Peer Reviewed
• [Journal Article] Structural and spatial associations of Fe, O, and C in network surface coat of Leptothrix ochracea sheath (2011)
  • Author(s): T. Suzuki, H. Hashimoto, H. Ishihara, T. Kasai, H. Kunoh, J. Takada
  • Journal Title: Applied and Environmental Microbiology Volume: 77 Pages: 7873-7875
  • Peer Reviewed
• [Journal Article] Silicon and Phosphorus Linkage with Iron via Oxygen in the Amorphous Matrix of Gallionella ferruginea Stalks (2011)
  • Author(s): T. Suzuki, H. Hashimoto, A. Itadani, N. Matsumoto, H. Kunoh, J. Takada
  • Journal Title: Applied and Environmental Microbiology Volume: 78 Pages: 236-241
  • Peer Reviewed
• [Presentation] 細菌が作る驚きの無機・有機複合材料～その基礎・応用研究～ (2012)
  • Author(s): 橋本英樹
  • Organizer: 日本化学会第92春季年会
  • Place of Presentation: 神奈川
  • Year and Date: 2012-03-27
• [Presentation] 鉄酸化細菌が作る驚きの無機・有機複合材料～その基礎・応用研究～(2):微生物由来非晶質ナノ酸化鉄からのヘマタイト赤色顔料の作製、微細構造と色特性 (2012)
  • Author(s): 橋本英樹
  • Organizer: 日本化学会第92春季年会
  • Place of Presentation: 神奈川
  • Year and Date: 2012-03-27
• [Presentation] 鉄酸化細菌が作る有機/無機ハイブリッド材料のSTEM/EELS分析 (2012)
  • Author(s): 橋本英樹
  • Organizer: 日本金属学会・日本鉄鋼協会中国四国支部第24回若手フォーラム
  • Place of Presentation: 岡山
  • Year and Date: 2012-02-29
• [Presentation] Characteristics of Novel Material, Biogenous Iron Oxide, Produced by Iron-Oxidizing Bacteria (2011)
  • Author(s): H. Hashimoto
  • Organizer: The 28th Japan-Korea International Seminar on Ceramics
  • Place of Presentation: Okayama, Japan
  • Year and Date: 2011-11-24
• [Presentation] Characteristics of Novel Material, Biogenous Iron Oxide, Produced by Iron-Oxidizing Bacteria, Leptothrix ochrace (2011)
  • Author(s): H.Hashimoto, et al
  • Organizer: The 28th Japan-Korea International Seminar on Ceramics
  • Place of Presentation: Okayama, Japan
  • Year and Date: 2011-11-24
• [Presentation] Produced By Iron-oxidizing Bacteria (2011)
  • Author(s): H. Hashimoto, Novel Materials, Biogenous Iron Oxide
  • Organizer: 17th International Symposium on the Reactivity of Solids
  • Place of Presentation: Bordeaux, France
  • Year and Date: 2011-06-28
• [Presentation] Novel Materials, Biogenous Iron Oxide, Produced By Iron-oxidizing Bacteria (2011)
  • Author(s): H.Hashimoto, et al
  • Organizer: 17th International Symposium on the Reactivity of Solids
  • Place of Presentation: Bordeaux, France
  • Year and Date: 2011-06-28
• [Presentation] 微生物が作るバイオジナス酸化鉄のキャラクタリゼーション(第2報)～放射光を用いたアモルファス構造解析～ (2011)
  • Author(s): 橋本英樹, 他
  • Organizer: 第49回セラミックス基礎科学討論会
  • Place of Presentation: 岡山コンベンションセンター(岡山)
• [Presentation] 微生物が作るバイオジナス酸化鉄のキャラクタリゼーション(第1報)～電子顕微鏡を用いた形態観察～ (2011)
  • Author(s): 橋本英樹, 他
  • Organizer: 第49回セラミックス基礎科学討論会
  • Place of Presentation: 岡山コンベンションセンター(岡山)
• [Presentation] Innovative Functional Material, "Biogenous iron oxide". (IV) Characterization and electrochemical property of microtubes produced by Leptothrix ochracea as a novel battery material. (2010)
  • Author(s): H.Hashimoto, et.al
  • Organizer: The International Chemical Congress of Pacific Basin Societies
  • Place of Presentation: Honolulu, Hawaii, USA
• [Book] Handbook of Metal Biotechnology. Chapter 12 Characteristics of Biogenous Iron Oxide microtubes formed by Iron-Oxidizing Bacteria, Leptothrix ochracea (2011)
  • Author(s): Jun Takada and Hideki Hashimoto
  • Publisher: Pan Stanford Publishing
• [Book] Handbook of Metal Biotechnology. Chapter 12 Characteristics of Biogenous Iron Oxide microtubes formed by Iron-Oxidizing Bacteria, Leptothrix ochracea (2011)
  • Author(s): Jun Takada, Hideki Hashimoto
  • Publisher: Pan Stanford Publishing
• [Patent(Industrial Property Rights)] 負極活物質及びその利用 (2011)
  • Inventor(s): 高田潤,橋本英樹,藤井達生,中西真,菅野了次,小林玄器,高野幹夫
  • Industrial Property Rights Holder: 岡山大学,東京工業大学,京都大学
  • Industrial Property Number: 2011-285282
  • Filing Date: 2011-12-27
• [Patent(Industrial Property Rights)] 負極活物質及びその利用 (2011)
  • Inventor(s): 高田潤, 橋本英樹, 他
  • Industrial Property Rights Holder: 岡山大学,東京工業大学,京都大学
  • Industrial Property Number: 2011-285282
  • Filing Date: 2011-12-27