Photo-anode device for photoelectrochemical cell and manufacturing method thereof

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This invention describes a photo-anode device for photoelectrochemical cells that uses a hematite (iron oxide) base combined with a conductive polymer film. The design boosts the efficiency of splitting water into hydrogen and oxygen using sunlight by making electron-hole separation more effective and reducing their recombination.

Use CasesContent extracted from patent full text and abstract with AI.

• Solar-powered water splitting to produce hydrogen fuel
• Integration into renewable energy systems for green hydrogen generation
• Photoelectrochemical sensors or devices involving water oxidation reactions
• Advanced research and development in artificial photosynthesis

BenefitsContent extracted from patent full text and abstract with AI.

• Improved efficiency of photoelectrochemical water splitting
• Reduced recombination of electron-hole pairs, enhancing hydrogen production
• Utilization of abundant and non-toxic materials (iron oxide and polymers)
• Potential for lower-cost and scalable methods to produce hydrogen from sunlight

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Patent Abstract

The present invention provides a photo-positive electrode device for a photoelectrochemical cell, and a manufacturing method thereof. In the photo-positive electrode device for the photoelectrochemical cell and the manufacturing method thereof according to the present invention, a base electrode body, which absorbs sunlight to generate separated electron-hole pairs, is made of iron oxide (α-Fe_2O_3, hematite) material, and a polymer catalyst film for oxidation generation made of a conductive polymer material, which prevents recombination of the electron-hole pairs, is formed in a form of a film on the surface of the base electrode body, to improve the photoelectrochemical water splitting efficiency.