A Comprehensive Review on Controlling Surface Composition of Pt‐Based Bimetallic Electrocatalysts,Advanced Energy Materials

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A Comprehensive Review on Controlling Surface Composition of Pt‐Based Bimetallic Electrocatalysts
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2018-04-14 , DOI: 10.1002/aenm.201703597
Bin-Wei Zhang ₁ , Hui-Ling Yang ₁ , Yun-Xiao Wang ₁ , Shi-Xue Dou ₁ , Hua-Kun Liu ₁

Affiliation

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.

中文翻译：

铂基双金属电催化剂的表面组成控制研究综述

随着世界范围内对能源需求的增加，已经做出了巨大的努力来开发用于有效的能量转换系统的优异的电催化剂。在所有开发的电催化剂中，基于Pt的双金属纳米材料因其高催化活性和引入非贵金属成分而相对较低的成本而脱颖而出。应当指出的是，电催化反应仅在催化剂的表面上发生，因此对于实用的电催化剂，必须对基于Pt的双金属纳米材料的表面组成进行研究。在这篇综述中，总结了最近关于控制Pt基双金属催化剂的表面组成以进行氧还原反应，甲酸电氧化和乙醇电氧化的研究。控制策略讨论了化学方法和电化学方法。还讨论了表面组合物组成对电催化性能的影响。最后，讨论了控制基于Pt的双金属纳米材料的表面挑战的挑战和未来的方向。

更新日期：2018-04-14

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