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Development of high performance hydrogen sensors using noble metal added nanoporous oxides

Research Project

Project/Area Number 24656431
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Material processing/treatments
Research InstitutionTohoku University

Principal Investigator

HARA NOBUYOSHI  東北大学, 工学(系)研究科(研究院), 教授 (40111257)

Co-Investigator(Kenkyū-buntansha) MUTO Izumi  東北大学, 大学院工学研究科, 教授 (20400278)
SUGAWARA Yu  東北大学, 大学院工学研究科, 助教 (40599057)
Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords表面・界面制御 / 化学センサ / ナノポーラス材料 / 脱合金化 / 水素ガス / 貴金属 / 水素ガスセンサ / 酸化チタン / ナノポーラス / 非晶質合金
Research Abstract

In order to develop hydrogen gas sensors with superior response characteristics, a new fabrication technique of nanopoprous oxides containing noble metal nanoparticles has been examined. Amorphous Ti-xCu (x=30-60at%) alloys containing a small amount of noble metals such as Au, Ag, Pd, Pt were used as a starting material and dealloying treatments were applied to form nanoporous Cu or Ti with bimodal structures consisting of ligaments and pores. The dealloying in HF solutions resulted in the formation of nanoporous Cu with bimodal structures enriched with noble metals. The addition of a few at% noble metals effectively reduced the size of pores to a few nm. The dealloying in HCl-HNO3 mixtures leaded to the production of a Ti enriched nanoporous Ti-Cu alloy covered with Ti oxide films.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (21 results)

All 2014 2013 2012

All Journal Article (11 results) (of which Peer Reviewed: 11 results) Presentation (10 results)

  • [Journal Article] Fabrication of nanoporous copper by dealloying of amorphous Ti–Cu–Ag alloys2014

    • Author(s)
      Zhenhua Dan, Fengxiang Qin, Akihiro Makino, Yu Sugawara, Izumi Muto, and Nobuyoshi Hara
    • Journal Title

      Journal of Alloys and Compounds

      Volume: Vol. 586,Supl.1

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Dependency of The Formation of Au-stabilized Nanoporous Copper on The Dealloying Temperature2014

    • Author(s)
      Z.H. Dan, F.X. Qin, A. Makino, Y. Sugawara, I. Muto, N. Hara
    • Journal Title

      Microporous & Mesoporous Materials

      Volume: Vol. 186, No. 1

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Fabrication of nanoporous copper by dealloying of amorphous Ti-Cu-Ag alloys2014

    • Author(s)
      Zhenhua Dan, Fengxiang Qin, Akihiro Makino, Yu Sugawara, Izumi Muto, Nobuyoshi Hara
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 586 Pages: 257-264

    • DOI

      10.1016/j.jallcom.2013.01.087

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dependency of The Formation of Au-stabilized Nanoporous Copper on The Dealloying Temperature2014

    • Author(s)
      Zhenhua Dan, Fengxiang Qin, Yu Sugawara, Izumi Muto and Nobuyoshi Hara
    • Journal Title

      Microporous and Mesoporous Materials

      Volume: 186 Pages: 181-186

    • DOI

      10.1016/j.micromeso.2013.12.003

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dealloying Behavior of Amorphous Binary Ti-Cu Alloys in Hydrofluoric Acid Solutions at Various Temperatures2013

    • Author(s)
      Zhenhua Dan, Fengxiang Qin, Shin-ichi Yamaura, Yu Sugawara, Izumi Muto, Nobuyoshi Hara
    • Journal Title

      Journal of Alloys and Compounds

      Volume: Vol. 581 Pages: 567-572

    • DOI

      10.1016/j.jallcom.2013.07.144

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Nanoporous Copper Dealloyed from A Nanocrystallized TiCu Alloy2013

    • Author(s)
      Z.H. Dan, F.X. Qin, Y. Sugawara, I. Muto, N. Hara
    • Journal Title

      Materials Science Forum

      Volume: Vol.750 Pages: 72-75

    • DOI

      10.4028/www.scientific.net/msf.750.72

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of the initial microstructure of Ti-Cu alloys on final nanoporous copper via dealloying2013

    • Author(s)
      Z.H. Dan, F.X. Qin, Y. Sugawara, I. Muto, N. Hara
    • Journal Title

      Journal of Alloys and Compounds

      Volume: Vol. 557, No. 1 Pages: 166-171

    • DOI

      10.1016/j.jallcom.2013.01.010

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Nickel-stabilized nanoporous copper fabricated from ternary TiCuNi amorphous alloys2013

    • Author(s)
      Z.H. Dan, F.X. Qin, Y. Sugawara, I. Muto, A. Makino, N. Hara
    • Journal Title

      Materials Letters

      Volume: Vol. 94 Pages: 128-131

    • DOI

      10.1016/j.matlet.2012.12.028

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Elaboration of nanoporous Copper by modifying surface diffusivity by the minor addition of gold2013

    • Author(s)
      Z.H. Dan, F.X. Qin, Y. Sugawara, I. Muto, N. Hara
    • Journal Title

      Microporous and Mesoporous Materials

      Volume: Vol. 165 Pages: 257-264

    • DOI

      10.1016/j.micromeso.2012.08.026

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fabrication of Ultrafine Nanoporous Copper by the Minor Addition of Gold2012

    • Author(s)
      Dan, Fengxiang Qin, Yu Sugawara, Izumi Muto, Nobuyoshi Hara
    • Journal Title

      MATERIALS TRANSACTIONS

      Volume: 53 Issue: 10 Pages: 1765-1769

    • DOI

      10.2320/matertrans.MAW201204

    • NAID

      130004824787

    • ISSN
      1345-9678, 1347-5320
    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fabrication of nanoporous copper by dealloying amorphous binary Ti-Cu alloys in hydrofluoric acid solutions2012

    • Author(s)
      Z.H. Dan, F.X. Qin, Y. Sugawara, I. Muto, N. Hara
    • Journal Title

      Intermetallics

      Volume: Vol.49 Pages: 14-20

    • DOI

      10.1016/j.intermet.2012.04.016

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Presentation] Au-stabilized UltrafineNanoporous Copper2012

    • Author(s)
      Z.H. Dan
    • Organizer
      Material Science Week 2012
    • Place of Presentation
      仙台
    • Related Report
      2013 Final Research Report
  • [Presentation] Facile Fabrication ofNano-structured Copper from TernaryAmorphous Alloys2012

    • Author(s)
      Z.H. Dan
    • Organizer
      16th Asian Pacific Corrosion Control Conference
    • Place of Presentation
      Kaohsiung
    • Related Report
      2013 Final Research Report
  • [Presentation] Evolution of Nanoporosity onAmorphous Ti-Cu Alloys2012

    • Author(s)
      Z.H. Dan
    • Organizer
      International Union of Materials Research Societies - International Conference in Asia 2012
    • Place of Presentation
      Busan
    • Related Report
      2013 Final Research Report
  • [Presentation] Nanoporous Copper Dealloyedfrom Nanocrystallized TiCu Alloys2012

    • Author(s)
      Z.H. Dan
    • Organizer
      The 8thInternational Forum on AdvancedMaterials Science and Technology
    • Place of Presentation
      福岡
    • Related Report
      2013 Final Research Report
  • [Presentation] Fabrication of nanoporouscopper by dealloying of amorphousTi-Cu-Ag alloys2012

    • Author(s)
      Z.H. Dan
    • Organizer
      19th International Symposium on Metastable Amorphous and Nanostructured Materials
    • Place of Presentation
      Moscow
    • Related Report
      2013 Final Research Report
  • [Presentation] Fabrication of nanoporous copper by dealloying of amorphous Ti-Cu-Ag alloys2012

    • Author(s)
      Z.H. Dan
    • Organizer
      19th International Symposium on Metastable Amorphous and Nanostructured Materials
    • Place of Presentation
      Moscow, Russia
    • Related Report
      2012 Research-status Report
  • [Presentation] Nanoporous Copper Dealloyed from Nanocrystallized TiCu Alloys2012

    • Author(s)
      Z.H. Dan
    • Organizer
      The 8thInternational Forum on Advanced Materials Science and Technology
    • Place of Presentation
      Fukuoka
    • Related Report
      2012 Research-status Report
  • [Presentation] Evolution of Nanoporosity on Amorphous Ti-Cu Alloys2012

    • Author(s)
      Z.H. Dan
    • Organizer
      International Union of Materials Research Societies -International Conference in Asia 2012
    • Place of Presentation
      Busan, Republic of Korea
    • Related Report
      2012 Research-status Report
  • [Presentation] Facile Fabrication of Nano-structured Copper from Ternary Amorphous Alloys2012

    • Author(s)
      Z.H. Dan
    • Organizer
      16th –Asian Pacific Corrosion Control Conference
    • Place of Presentation
      Kaohsiung, Chinese Taipei
    • Related Report
      2012 Research-status Report
  • [Presentation] Au-stablized Ultrafine Nanoporous Copper2012

    • Author(s)
      Z.H. Dan
    • Organizer
      Material Science Week 2012
    • Place of Presentation
      Sendai
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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