Title:
IRIDIUM-MANGANESE OXIDE COMPOSITE MATERIAL, IRIDIUM-MANGANESE OXIDE COMPOSITE ELECTRODE MATERIAL, AND METHODS FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2022/264960
Kind Code:
A1
Abstract:
Provided are an iridium-manganese oxide composite material and an iridium-manganese oxide composite electrode material which are used as positive electrode catalysts for oxygen generation in water electrolysis, which are inexpensive, and which have high catalytic activity. Also provided are methods for producing these materials. The iridium-manganese oxide composite material is characterized in that iridium is distributed over the surface of a manganese oxide and the iridium has a metallic valence of 3.1-3.8. The iridium-manganese oxide composite electrode material contains an electrically conductive base material constituted by fibers at least partially covered with the iridium-manganese oxide composite material.
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Inventors:
NAKAMURA RYUHEI (JP)
KONG SHUANG (JP)
LI AILONG (JP)
FUSHIMI KAZUNA (JP)
SUETSUGU KAZUMASA (JP)
OKADA TAKUYA (JP)
KONG SHUANG (JP)
LI AILONG (JP)
FUSHIMI KAZUNA (JP)
SUETSUGU KAZUMASA (JP)
OKADA TAKUYA (JP)
Application Number:
PCT/JP2022/023599
Publication Date:
December 22, 2022
Filing Date:
June 13, 2022
Export Citation:
Assignee:
RIKEN (JP)
TOSOH CORP (JP)
TOSOH CORP (JP)
International Classes:
C25B11/093; B01J23/656; B01J37/02; B01J37/08; C25B1/04; C25B1/21; C25B9/00; C25B9/23; C25B11/052; C25B11/063; C25B11/065; C25D9/04
Domestic Patent References:
| WO2021193467A1 | 2021-09-30 | |||
| WO2009154753A2 | 2009-12-23 | |||
| WO2019117199A1 | 2019-06-20 |
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| JP2015192993A | 2015-11-05 | |||
| JP2021099336A | 2021-07-01 |
Other References:
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INTERNATIONAL ENERGY AGENCY (IEA, 2016
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
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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.
Attorney, Agent or Firm:
T.S. PARTNERS et al. (JP)
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