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Title:
METHOD FOR PRODUCING STRONGLY ACIDIC ZIRCONIUM PARTICLES, METHOD FOR PRODUCING PROTON CONDUCTING MATERIAL AND PROTON CONDUCTING FILM, PROTON CONDUCTING FILM, ELECTRODE FOR FUEL CELL, FILM-ELECTRODE JOINED BODY, FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2011/018908
Kind Code:
A1
Abstract:
The disclosed method enables zirconium sulfophenyl phosphonate, zirconium sulfate, or zirconia sulfate, which are high performance materials as proton conducting materials and which have high catalytic activity, to be produced at a low temperature by means of adding and reacting sulfophenyl phosphonic acid or sulfuric acid with zirconium nanoparticles, which are a precursor of strongly acidic zirconium particles, and which are obtained by reacting zirconium alkoxide, zirconium butoxide as a chelating agent, and nitric acid as a catalyst in isopropyl alcohol as a solvent.

Inventors:
YAMAGUCHI TAKEO (JP)
KIKUCHI YUMA (JP)
LEE JU-MYEUNG (JP)
OHASHI HIDENORI (JP)
TAMAKI TAKANORI (JP)
Application Number:
JP2010/055242
Publication Date:
February 17, 2011
Filing Date:
March 25, 2010
Export Citation:
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Assignee:
TOKYO INST TECH (JP)
YAMAGUCHI TAKEO (JP)
KIKUCHI YUMA (JP)
LEE JU-MYEUNG (JP)
OHASHI HIDENORI (JP)
TAMAKI TAKANORI (JP)
International Classes:
C07F19/00; C01G25/06; C07F7/00; C07F9/38; H01B1/06; H01B13/00; H01M8/02; H01M8/10
Domestic Patent References:
WO2007029346A12007-03-15
WO2009041479A12009-04-02
Foreign References:
JP2005527545A2005-09-15
JP2009187729A2009-08-20
JP2009272239A2009-11-30
JP2010052852W2010-02-24
Other References:
ALBERTI, G. ET AL.: "Preparation and proton conductivity of composite ionomeric membranes obtained from gels of amorphous zirconium phosphate sulfophenylenphosphonates in organic solvents", JOURNAL OF MATERIALS CHEMISTRY, vol. 14, no. 12, 2004, pages 1910 - 1914, XP008153916
HARA, S. ET AL.: "Proton conductivity of superacidic sulfated zirconia", SOLID STATE IONICS, vol. 168, no. 1-2, 2004, pages 111 - 116, XP008153906
ALBERTI, G. ET AL., JOURNAL OF MATERIALS CHEMISTRY, vol. 14, 2004, pages 1910 - 1914
HARA, S. ET AL., SOLID STATE IONICS, vol. 168, 2004, pages 111
MONTONERI, E. ET AL., JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSCATIONS, 1989, pages 1819
E. W. STEIN ET AL., SOLID STATE IONICS, vol. 83, 1996, pages 113
J. C. JUAN ET AL., JOURNAL OF MOLECULAR CATALYSIS A: CHEMICAL, vol. 272, 2007, pages 91
E. ESCALONA PLATERO ET AL., CATALYSIS LETTERS, vol. 30, 1995, pages 31 - 39
YINYONG S ET AL., J. PHYS. CHEM. B, vol. 109, 2005, pages 2567 - 2572
K. ARATA, MATERIALS CHEM AND PHYS, vol. 26, 1990, pages 213 - 237
I. J. DIJS ET AL., PHYS. CHEM. CHEM. PHYS., vol. 3, 2001, pages 4423 - 4429
Attorney, Agent or Firm:
KOIKE, Akira et al. (JP)
Akira Koike (JP)
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