Title:
CuPd ALLOY NANOPARTICLES AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2010/131653
Kind Code:
A1
Abstract:
Disclosed are: CuPd alloy nanoparticles which have sufficient catalytic activity and poisoning resistance even when used as a photocatalyst or an electrode catalyst for a fuel cell; a method for producing the CuPd alloy nanoparticles; and a catalyst composition using the CuPd alloy nanoparticles. Specifically disclosed are CuPd alloy nanoparticles which have a B2 or L12 crystal structure, an average particle diameter of 1-200 nm and are expressed as CuxPd(1-x) (wherein 0.3 < x < 0.7 when the CuPd alloy nanoparticles have a B2 crystal structure, and 0.7 ≤ x ≤ 0.98 when the CuPd alloy nanoparticles have an L12 crystal structure). Also specifically disclosed are: a method for producing CuPd nanoparticles, wherein a dispersion liquid or solution of Cu ions and Pd ions is prepared by dispersing or dissolving Cu ions and Pd ions in water or an aqueous solution in the presence of a protective polymer, and then a reducing agent for the Cu ions and Pd ions is added into the thus-obtained dispersion liquid or solution, thereby reducing the Cu ions and Pd ions and producing CuPd nanoparticles; a composition which contains the CuPd alloy nanoparticles and a protective polymer; and a catalyst composition in which the CuPd alloy nanoparticles are supported by a carrier.
Inventors:
YAMAUCHI MIHO
TSUKUDA TATSUYA
ABE RYU
TSUKUDA TATSUYA
ABE RYU
Application Number:
PCT/JP2010/057961
Publication Date:
November 18, 2010
Filing Date:
May 11, 2010
Export Citation:
Assignee:
UNIV HOKKAIDO NAT UNIV CORP (JP)
YAMAUCHI MIHO
TSUKUDA TATSUYA
ABE RYU
YAMAUCHI MIHO
TSUKUDA TATSUYA
ABE RYU
International Classes:
B01J13/00; B01J23/89; B01J35/02; B01J37/18; B22F1/054; B22F9/00; B22F9/24; B82B1/00; B82B3/00; C22C5/04; C22C9/00
Foreign References:
| JP2001000866A | 2001-01-09 | |||
| JP2002263499A | 2002-09-17 | |||
| JP2004097893A | 2004-04-02 | |||
| JP2005307335A | 2005-11-04 |
Other References:
MIHO YAMAUCHI ET AL.: "Polymer Hogo CuPd Nano Ryushi no Suiso Kyuzo Tokusei", CSJ, vol. 85, 11 March 2005 (2005-03-11), pages 385
MIHO YAMAUCHI: "Polymer Hifuku PdCu Nano Ryushi no Suiso Kyuzo Tokusei", ABSTRACTS OF THE SYMPOSIUM ON MOLECULAR STRUCTURE, 1 September 2004 (2004-09-01), pages 1P027
K. SUN ET AL.: "Atomic Scale Characterization of Supported Pd- Cu/y-A1203 Bimetallic Catalysts", J. PHYS. CHEM., vol. 106, 28 November 2002 (2002-11-28), pages 12239 - 12246
YUAN WANG ET AL.: "Nanoscopic Naked Cu/Pd Powder as Air-Resistant Active Catalyst for Selective Hydration of Acrylonitrile to Acrylamide", J. PHYS. CHEM., vol. 100, 12 December 1996 (1996-12-12), pages 19533 - 19537
JURKA BATISTA ET AL.: "Gomilsek, Alojz Kodre, Frederic Bornette, On the structural characteristics of y-alumina- supported Pd-Cu bimetallic catalysts", APPLIED CATALYSIS A; GENERAL, vol. 217, 3 September 2001 (2001-09-03), pages 55 - 68
MIHO YAMAUCHI: "Polymer Hifuku PdCu Nano Ryushi no Suiso Kyuzo Tokusei", ABSTRACTS OF THE SYMPOSIUM ON MOLECULAR STRUCTURE, 1 September 2004 (2004-09-01), pages 1P027
K. SUN ET AL.: "Atomic Scale Characterization of Supported Pd- Cu/y-A1203 Bimetallic Catalysts", J. PHYS. CHEM., vol. 106, 28 November 2002 (2002-11-28), pages 12239 - 12246
YUAN WANG ET AL.: "Nanoscopic Naked Cu/Pd Powder as Air-Resistant Active Catalyst for Selective Hydration of Acrylonitrile to Acrylamide", J. PHYS. CHEM., vol. 100, 12 December 1996 (1996-12-12), pages 19533 - 19537
JURKA BATISTA ET AL.: "Gomilsek, Alojz Kodre, Frederic Bornette, On the structural characteristics of y-alumina- supported Pd-Cu bimetallic catalysts", APPLIED CATALYSIS A; GENERAL, vol. 217, 3 September 2001 (2001-09-03), pages 55 - 68
Attorney, Agent or Firm:
SIKs & Co. (JP)
Patent business corporation patent firm Sykes (JP)
Patent business corporation patent firm Sykes (JP)
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