电化学析氢镍基合金材料研究进展

Recent Progress on Electrochemical Hydrogen Evolution of Ni-based Alloy Materials

氢气作为一种新型绿色可再生能源,不仅能有效缓解能源危机问题,而且还可以保护环境。研究发现过渡金属镍在碱性溶液中具有较高的析氢活性。由于邻近杂原子具有改变镍原子表面吸附能/解吸能的能力,还可为某些中间体提供吸附/解吸中心,因此镍基合金的形成更有利于促进镍的电化学析氢反应。在此,综述了近年来二元及多元镍基合金材料的制备方法,探讨了材料结构与电催化析氢性能之间的联系。并在此基础上,对电催化析氢镍基合金材料的研究方向和应用前景进行了展望。

As a new green renewable energy resource,hydrogen can not only effectively alleviate the energy crisis,but also conducive to the improvement of the ecological environment.It is found that the transition metal Ni exhibit high electrochemical hydrogen evolution activity in alkaline solution.Since adjacent heteroatoms not only could change the adsorption/desorption energy on the surface of Ni atoms,but also provide adsorption/desorption centers for some intermediates,and therefore,the formation of Ni-based alloys is more conducive to the electrochemical hydrogen evolution reaction of Ni.Herein,this paper summarizes the preparation methods for Ni-based alloy materials of electrocatalytic hydrogen evolution in recently years.On this basis,the research direction and application prospect of electrocatalytic Ni-based alloys are also proposed.