Title:
MANGANESE-IRIDIUM COMPLEX OXIDE FOR WATER DECOMPOSITION CATALYST, MANGANESE-IRIDIUM COMPLEX OXIDE ELECTRODE MATERIAL, AND PRODUCTION METHODS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/193467
Kind Code:
A1
Abstract:
The present invention provides: a manganese-iridium complex oxide which is inexpensive, has high catalytic activity, and is used as a positive electrode catalyst for oxygen generation in water electrolysis; a manganese-iridium complex oxide electrode material; and production methods therefor. The manganese-iridium complex oxide is characterized by having a metal-containing ratio of iridium (iridium /(manganese + iridium)) of 0.1-30 at%, and crystal plane spacing of at least 0.243±0.002 nm, 0.214±0.002 nm, 0.165±0.002 nm, and 0.140±0.002 nm. The manganese-iridium complex oxide electrode material is formed of an electrically conductive base material composed of fibers at least partially coated with the manganese-iridium complex oxide.
Inventors:
NAKAMURA RYUHEI (JP)
BONNET NADEGE (JP)
KONG SHUANG (JP)
SUETSUGU KAZUMASA (JP)
BONNET NADEGE (JP)
KONG SHUANG (JP)
SUETSUGU KAZUMASA (JP)
Application Number:
PCT/JP2021/011501
Publication Date:
September 30, 2021
Filing Date:
March 19, 2021
Export Citation:
Assignee:
RIKEN (JP)
TOSOH CORP (JP)
TOSOH CORP (JP)
International Classes:
C25B1/01; B01J23/656; C25B1/04; C25B1/21; C25B9/00; C25B9/23; C25B11/04
Domestic Patent References:
| WO2019117199A1 | 2019-06-20 | |||
| WO2018181967A1 | 2018-10-04 | |||
| WO2009154753A2 | 2009-12-23 | |||
| WO2019117199A1 | 2019-06-20 |
Foreign References:
| CN108470917A | 2018-08-31 | |||
| CN101230467A | 2008-07-30 | |||
| JPH08269761A | 1996-10-15 | |||
| JP2007514520A | 2007-06-07 | |||
| JP2015192993A | 2015-11-05 | |||
| JP2020054589A | 2020-04-09 |
Other References:
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M. DINCAY. SURENDRANATHD. G. NOCERA, PROC. NATL. ACAD. SCI. U.S.A., vol. 107, 2010, pages 10337
A. HARRIMANI. J. PICKERINGJ. M. THOMASP. A. CHRISTENSEN, J. CHEM. SOC., FARADAY TRANS., vol. 1, no. 84, 1988, pages 2795
Y. ZHAON. M. VARGAS-BARBOSAE. A. HERNANDEZ-PAGANT. E. MALLOUK, SMALL, vol. 7, 2011, pages 2087
M. M. NAJAFPOURG. RENGERM. HOLYNSKAA. N. MOGHADDAME. -M. AROR. CARPENTIERH. NISHIHARAJ. J. EATON-RYEJ. -R. SHENS. I. ALLAKHVERDIEV, CHEM. REV., vol. 116, 2016, pages 2886
T. TAKASHIMAK. ISHIKAWAH. IRIE, J. PHYS. CHEM. C, vol. 120, 2016, pages 24827
J. B. GERKENJ. G. MCALPINJ. Y. C. CHENM. L. RIGSBYW. H. CASEYR. D. BRITTS. S. STAHL, J. AM. CHEM. SOC., vol. 133, 2011, pages 14431
M. DINCAY. SURENDRANATHD. G. NOCERA, PROC. NATL. ACAD. SCI. U.S.A., vol. 107, 2010, pages 10337
Attorney, Agent or Firm:
T.S. PARTNERS et al. (JP)
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