Ojha Kasinath, Saha Soumen, Dagar Preeti, Ganguli Ashok K
Institute of Nano Science and Technology, Habitat Center, Phase-10, Sector-64, Mohali, Punjab 160062, India.
Phys Chem Chem Phys. 2018 Mar 7;20(10):6777-6799. doi: 10.1039/c7cp06316d.
Hydrogen fuel is among the cleanest renewable resources and is the best alternative to fossil fuels for the future. Hydrogen can be best produced by means of electrolysis or photoelectrolysis of water among the various routes available for hydrogen production. So far, Pt has been recognized as the best electrode material for electrochemical hydrogen production. However, the cost of the catalyst, activity, and durability make Pt-catalyzed hydrogen production unsuitable on a commercial scale. It has hence become imperative to explore low-cost, highly active and durable HER catalysts to replace platinum as a catalyst. This perspective provides key concepts and the current status of the research on the properties of nanocatalysts that influence the hydrogen evolution reaction. Important structural features controlling the surface chemistry (i.e. facets, defects, dopants), nature of supports (graphene, CNTs, black phosphorus), role of heteroatoms, media and morphology are the key points of discussion in this perspective.
氢燃料是最清洁的可再生资源之一，是未来化石燃料的最佳替代品。在各种制氢途径中，通过水的电解或光电解制氢是最佳方法。到目前为止，铂已被公认为电化学制氢的最佳电极材料。然而，催化剂的成本、活性和耐久性使得铂催化制氢在商业规模上并不适用。因此，探索低成本、高活性和耐用的析氢反应（HER）催化剂以取代铂作为催化剂变得势在必行。本文综述了影响析氢反应的纳米催化剂性能的关键概念和研究现状。控制表面化学性质（即晶面、缺陷、掺杂剂）的重要结构特征、载体（石墨烯、碳纳米管、黑磷）的性质、杂原子的作用、介质和形态是本文讨论的重点。
