Hydrogen production from water electrolysis with renewable energy input has been the focus of tremendous attention, as hydrogen is widely advocated as a clean energy carrier. In order to realize large-scale hydrogen generation from water splitting, it is essential to develop competent and robust electrocatalysts that will substantially decrease the overpotential requirement and improve energy efficiency. Recent advances in electrocatalyst design reveal that interfacial engineering is an effective approach in tuning the adsorption–desorption abilities of key catalytic intermediates on active sites, accelerating electron transfer, and stabilizing the active sites for long-term operation. Consequently, a large number of hybrid electrocatalysts consisting of metal/compound interfaces have been demonstrated to exhibit superior performance for electrocatalytic hydrogen evolution from water. This article highlights examples of these hybrid electrocatalysts, including noble metal and non-noble metal candidates interfaced with a variety of compounds. Specific emphasis is placed on the synthetic methods, reaction mechanisms, and electrocatalytic activities, which are envisioned to inspire the design and development of further improved electrocatalysts for hydrogen evolution from water splitting on an industrial scale.

由于广泛提倡将氢作为清洁能源载体，利用可再生能源输入的水电解生产氢一直是人们关注的焦点。为了实现水分解产生的大量氢气，必须开发出能显着降低过电位要求并提高能源效率的有效而坚固的电催化剂。电催化剂设计的最新进展表明，界面工程是调节关键催化中间体在活性位点上的吸附-脱附能力，加速电子传递并稳定活性位点以进行长期运行的有效方法。所以，已证明大量由金属/化合物界面组成的杂化电催化剂对于从水中放出氢的电催化作用表现出优异的性能。本文重点介绍了这些杂化电催化剂的示例，包括与各种化合物连接的贵金属和非贵金属候选物。特别强调了合成方法，反应机理和电催化活性，其目的是激发设计和开发进一步改良的电催化剂，以从工业规模的水分解中释放出氢气。