Title:
METHOD FOR PRODUCING STRONGLY ACIDIC ZIRCONIUM PARTICLES, METHOD FOR PRODUCING PROTON CONDUCTING MATERIAL AND PROTON CONDUCTING FILM, AND PROTON CONDUCTING FILM
Document Type and Number:
WIPO Patent Application WO/2011/018905
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)
KIKUCHI YUMA (JP)
LEE JU-MYEUNG (JP)
OHASHI HIDENORI (JP)
TAMAKI TAKANORI (JP)
Application Number:
PCT/JP2010/052852
Publication Date:
February 17, 2011
Filing Date:
February 24, 2010
Export Citation:
Assignee:
TOKYO INST TECH (JP)
YAMAGUCHI TAKEO (JP)
KIKUCHI YUMA (JP)
LEE JU-MYEUNG (JP)
OHASHI HIDENORI (JP)
TAMAKI TAKANORI (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:
| WO2007029346A1 | 2007-03-15 | |||
| WO2009041479A1 | 2009-04-02 |
Foreign References:
| JP2005527545A | 2005-09-15 |
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, DOI: doi:10.1039/B400467A
HARA, S. ET AL.: "Proton conductivity of superacidic sulfated zirconia", SOLID STATE IONICS, vol. 168, no. 1-2, 2004, pages 111 - 116, XP008153906, DOI: doi:10.1016/j.ssi.2004.01.030
HARA, S. ET AL.: "Proton conductivity of superacidic sulfated zirconia", SOLID STATE IONICS, vol. 168, no. 1-2, 2004, pages 111 - 116, XP008153906, DOI: doi:10.1016/j.ssi.2004.01.030
Attorney, Agent or Firm:
KOIKE, Akira et al. (JP)
Akira Koike (JP)
Akira Koike (JP)
Download PDF: