A Comprehensive Review on Controlling Surface Composition of Pt‐Based Bimetallic Electrocatalysts |
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| Authors: | Bin‐Wei Zhang Hui‐Ling Yang Yun‐Xiao Wang Shi‐Xue Dou Hua‐Kun Liu |
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| Affiliation: | Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, New South Wales, Australia |
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| Abstract: | With increasing energy demands worldwide, significant efforts have been made to develop superior electrocatalysts for efficient energy conversion systems. Among all the electrocatalysts exploited, Pt‐based bimetallic nanomaterials stand out by virtue of their high catalytic activity and relatively low cost due to the introduction of a nonprecious metal component. It should be noted that electrocatalytic reactions only take place on the surface of catalysts, so investigations of the surface composition of Pt‐based bimetallic nanomaterials are necessary for practical electrocatalysts. In this review, recent studies on controlling the surface composition of Pt‐based bimetallic catalysts for the oxygen reduction reaction, formic acid electrooxidation, and ethanol electrooxidation are summarized. The controlling strategies, including the chemical method and the electrochemical method, are discussed. The impacts of surface composition compositions on the electrocatalytic performance are also discussed. Finally, the challenges and future directions for controlling the surface composition of Pt‐based bimetallic nanomaterials are addressed. |
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| Keywords: | ethanol electrooxidation formic acid electrooxidation oxygen reduction reaction Pt‐based bimetallic surface composition |
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