Sn-based catalysts, their preparation methods, applications, and a method for the electrocatalytic synthesis of formic acid in alkali-free metal salt electrolytes.
By constructing a membrane electrode assembly using Sn-based catalysts and nickel hydroxide catalysts, and using water as a medium for the electrocatalytic synthesis of formic acid, the problems of selectivity and high energy consumption in the electrocatalytic reduction of carbon dioxide were solved, and efficient and simplified formic acid production was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUNAN UNIV
- Filing Date
- 2026-04-21
- Publication Date
- 2026-06-30
AI Technical Summary
Existing technologies struggle to selectively and efficiently electrocatalytically reduce carbon dioxide to formic acid under mild conditions, and traditional methods suffer from complex product separation, high energy consumption, and numerous byproducts.
By employing Sn-based catalysts, a membrane electrode assembly was constructed by preparing Sn-based catalysts with heterostructures of crystalline and amorphous phases and combining them with a nickel hydroxide catalyst. Formic acid was then synthesized electrocatalystically using water as a medium, simplifying the process and improving selectivity.
It enables efficient and continuous production of high-purity formic acid with low energy consumption, simplifies the process flow, improves product selectivity and reaction efficiency, and reduces the working potential of the electrolyzer.
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