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Development Strategies in Transition Metal Borides for Electrochemical Water Splitting,过渡金属硼化物电化学水分解的发展策略
Energy & Environmental Materials ( IF 13.0 ) Pub Date : 2021-04-26 , DOI: 10.1002/eem2.12198 Yihang Yao 1 , Zhaoyuan Zhang 1 , Lifang Jiao 1
Energy & Environmental Materials ( IF 13.0 ) Pub Date : 2021-04-26 , DOI: 10.1002/eem2.12198 Yihang Yao 1 , Zhaoyuan Zhang 1 , Lifang Jiao 1
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Electrochemical water splitting is a feasible method for producing environmental benignity energy of hydrogen, while high price and low availability on the earth of noble electrocatalysts constrain their global-scale application. Transition metal borides (TMBs) have displayed unique metalloid characteristic and outstanding performance for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) in the last few decades. Herein, recent developments of the TMBs for HER and OER are summarized. Initially, the impact factors and relevant evaluation of electrocatalytic performance are described, that is, overpotential, Tafel slope and exchange current density, stability, faradaic efficiency, turnover frequency, mass and specific activities. Moreover, the optimization strategies of borides are emphasized, which principally include coupling with effective substrates, elemental doping, phase modification, interfacial engineering, and morphology control. Finally, in order to reach the goal of application, the remaining challenges and perspectives are given to point out a direction for enhancing the performance of borides.,电化学水分解是一种生产环境友好型氢能源的可行方法，而贵金属电催化剂的高价格和地球上的低可用性限制了其在全球范围内的应用。在过去的几十年中，过渡金属硼化物（TMBs）在析氧反应（OER）和析氢反应（HER）中表现出独特的准金属特性和出色的性能。本文总结了用于 HER 和 OER 的 TMB 的最新发展。首先，描述了电催化性能的影响因素和相关评价，即过电位、塔菲尔斜率和交换电流密度、稳定性、法拉第效率、周转频率、质量和比活度。此外，还强调了硼化物的优化策略，其中主要包括与有效衬底的耦合、元素掺杂、相改性、界面工程和形态控制。最后，为了达到应用的目标，给出了剩下的挑战和观点，为提高硼化物的性能指明了方向。
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更新日期：2021-04-26
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