Heterostructures for Electrochemical Hydrogen Evolution Reaction: A Review
Heterostructures for Electrochemical Hydrogen Evolution Reaction: A Review
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DOI：
10.1002/adfm.201803291
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发表时间：
2018-08
影响因子：
19
通讯作者：
Guoqiang Zhao;Kun Rui;S. Dou;Wenping Sun
中科院分区：
文献类型：
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作者：
Guoqiang Zhao;Kun Rui;S. Dou;Wenping Sun
开发可持续和可再生能源沿着高效的能源储存和转换技术对于应对环境和能源挑战至关重要。电化学水裂解与电网规模的可再生能源收集技术相结合正在成为最有前途的方法之一。此外，氢具有任何燃料中最高的质能密度，被认为是最终的清洁能源载体。实际水裂解的实现在很大程度上取决于用于析氢反应（HER）和析氧反应（OER）的低成本、高活性和耐用催化剂的开发。最近，通常由电化学活性材料和各种功能添加剂组成的异质结构催化剂已经表现出对HER和OER的非凡电催化性能，特别是许多不含贵金属的异质结构提供了与贵金属基催化剂相当的活性。本文综述了近年来异质结构HER催化剂的研究进展。首先总结HER的基本原理和评价HER活性的方法。然后，对异质结构的设计与合成、电化学性能以及相关的性能增强机制进行了讨论。最后，从理论认识和实际应用两个方面展望了异质结构HER催化剂的发展前景。
Developing sustainable and renewable energy sources along with efficient energy storage and conversion technologies is vital to address environmental and energy challenges. Electrochemical water splitting coupling with grid‐scale renewable energy harvesting technologies is becoming one of the most promising approaches. Besides, hydrogen with the highest mass‐energy density of any fuel is regarded as the ultimate clean energy carrier. The realization of practical water splitting depends heavily on the development of low‐cost, highly active, and durable catalysts for hydrogen evolution reactions (HERs) and oxygen evolution reactions (OERs). Recently, heterostructured catalysts, which are generally composed of electrochemical active materials and various functional additives, have demonstrated extraordinary electrocatalytic performance toward HER and OER, and particularly a number of precious‐metal‐free heterostructures delivered comparable activity with precious‐metal‐based catalysts. Herein, an overview is presented of recent research progress on heterostructured HER catalysts. It starts with summarizing the fundamentals of HER and approaches for evaluating HER activity. Then, the design and synthesis of heterostructures, electrochemical performance, and the related mechanisms for performance enhancement are discussed. Finally, the future opportunities and challenges are highlighted for the development of heterostructured HER catalysts from the points of view of both fundamental understandings and practical applications.