1. BiPO 4 ‐Derived 2D Nanosheets for Efficient Electrocatalytic Reduction of CO 2 to Liquid Fuel
- Author
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Chunzhong Li, Chuqian Xiao, Hao Jiang, Jinze Liu, Hongliang Jiang, Chunxiao Dong, Ling Cheng, Yating Wang, and Yu Hang Li
- Subjects
Bismuth phosphate ,Materials science ,General Medicine ,General Chemistry ,Electrosynthesis ,Electrochemistry ,Electrocatalyst ,Catalysis ,Liquid fuel ,Reduction (complexity) ,chemistry.chemical_compound ,X-ray photoelectron spectroscopy ,chemistry ,Chemical engineering ,Formate ,Faraday efficiency ,Electrochemical reduction of carbon dioxide - Abstract
The electrochemical reduction of carbon dioxide (CO2 ) to high-value liquid fuel with high selectivity is appealing for energy conversion and storage. Here we report a bismuth phosphate (BiPO4 ) derived 2D nanosheet-like electrocatalyst that efficiently converts CO2 into liquid-phase formate. The catalyst presents a formate Faradaic efficiency of over 90 % and a cathodic energy efficiency of 73 % at an industrially relevant current density of 200 mA cm-2 in the flow cell. The in situ generation of the Bi-O active species on the catalyst surface was determined via operando Raman measurement. Morphological and X-ray photoelectron spectroscopy analyses reveal the origin of the high activity for the electrosynthesis of formate from CO2 and water: the 2D structure together with the abundant insertion of oxygen atoms in the surface of the BiPO4 -derived nanosheets.
- Published
- 2021