| abstract |
(57) Abstract: It is possible to uniformly form a metal oxide film in a short time with a simple device configuration, and even in a large area and a complicated shape, and as a result, the cost is low and the performance is high. To provide a method for producing a photocatalyst for water splitting, which can obtain a good photocatalyst for water splitting. A method for producing a photocatalyst for water decomposition by forming a metal oxide film on a metal substrate 1, wherein the metal oxide film is formed by an anodic oxidation method. . |