Electrochemical Reduction of Carbon Dioxide to Methanol on Hierarchical Pd/SnO2 Nanosheets with Abundant Pd–O–Sn Interfaces |
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| Authors: | Wuyong Zhang Qing Qin Dr. Lei Dai Ruixuan Qin Dr. Xiaojing Zhao Xumao Chen Daohui Ou Dr. Jie Chen Dr. Tracy T Chuong Prof. Binghui Wu Prof. Nanfeng Zheng |
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| Affiliation: | 1. State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of, Chemistry for Energy Materials, National &, Local Joint Engineering Research Center of, Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China;2. Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen, China |
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| Abstract: | Electrochemical conversion of CO2 into fuels using electricity generated from renewable sources helps to create an artificial carbon cycle. However, the low efficiency and poor stability hinder the practical use of most conventional electrocatalysts. In this work, a 2D hierarchical Pd/SnO2 structure, ultrathin Pd nanosheets partially capped by SnO2 nanoparticles, is designed to enable multi‐electron transfer for selective electroreduction of CO2 into CH3OH. Such a structure design not only enhances the adsorption of CO2 on SnO2, but also weakens the binding strength of CO on Pd due to the as‐built Pd–O–Sn interfaces, which is demonstrated to be critical to improve the electrocatalytic selectivity and stability of Pd catalysts. This work provides a new strategy to improve electrochemical performance of metal‐based catalysts by creating metal oxide interfaces for selective electroreduction of CO2. |
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| Keywords: | CO2 reduction reaction electrocatalysis nanomaterials palladium tin oxide |
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