Title:
ANODIC PHOTOELECTRODE, ANODIC PHOTOELECTRODE PRODUCTION METHOD, AND HYDROGEN PRODUCTION FACILITY
Document Type and Number:
WIPO Patent Application WO/2023/042476
Kind Code:
A1
Abstract:
An anodic photoelectrode 10 is intended to be used for receiving the irradiation with light in an aqueous solution to perform water splitting. The anodic photoelectrode 10 is provided with: a silicon membrane 1 having a front surface FS1 and a back surface BS1; and a metal oxide membrane 3 formed on the front surface FS1 of the silicon membrane 1. The metal oxide membrane 3 contains anions of an electrolyte. In the metal oxide membrane 3, the amount of the anions contained in a region located close to the surface of the metal oxide membrane 3 is larger than that in a region located close to the silicon membrane 1.
Inventors:
SAGAWA MASAKAZU (JP)
Application Number:
PCT/JP2022/019194
Publication Date:
March 23, 2023
Filing Date:
April 27, 2022
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
C25B11/069; C25B1/04; C25B9/00; C25B9/50; C25B11/061; C25B11/067; C25B11/075; C25B11/081; C25D11/04
Domestic Patent References:
| WO2010042197A1 | 2010-04-15 | |||
| WO2011058723A1 | 2011-05-19 | |||
| WO2015178019A1 | 2015-11-26 |
Attorney, Agent or Firm:
TSUTSUI & ASSOCIATES (JP)
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