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开发和制备碱性条件下的非贵金属析氢和析氧催化剂对于缓解能源和环境危机至关重要.本文利用一种简单的酸活化方法,制备出了一种基于泡沫镍的镍/氧化镍一体化电极.由于其粗糙及类片层的表面结构使得制备出的电极具有大的比表面积和更多的表面反应活性位点.同时,与粉末催化剂相比,此一体化电极可实现催化剂和集流体之间的良好接触,在一定程度上缓解催化剂的脱落问题,保证了电极的稳定性.当用作双功能催化剂时,其表现出了优异的催化活性和良好的稳定性.此法简单且易规模化,可以为制备其他非贵金属催化剂提供思路.
The development and preparation of non-noble metal hydrogen evolution and oxygen evolution catalysts under alkaline conditions are of crucial importance to alleviating the energy and environmental crisis.This paper uses a simple acid activation method to prepare a nickel / nickel oxide based on nickel foam Electrode due to its rough surface structure and the type of layer so that the prepared electrode has a large specific surface area and more surface active sites.At the same time, compared with the powder catalyst, the integrated electrode can achieve the catalyst and the current collector Of the good contact between, to some extent, ease the catalyst off problem, to ensure the stability of the electrode when used as a bifunctional catalyst, which showed excellent catalytic activity and good stability of this method is simple and easy Large-scale, can provide ideas for the preparation of other non-precious metal catalysts.