To take advantage of renewable energy such as solar energy to split water to hydrogen is an important solution to address the environmental pollution and energy shortage crisis.The development of highly efficient,robust,and low-cost catalysts is the key to the production of green and clean hydrogen energy.Transition metal phosphides(TMPs),as kinds of composites that can replace noble metal catalysts,have attracted wide attention in the field of solar hydrogen production.However,the poor stability of TMPs under harsh reaction condition limits their large-scale application at industrial level.In this paper,the physicochemical properties,preparation methods,stability in catalytic reactions and stability improvement strategies of TMPs are reviewed.The reason for the decline of stability of TMPs is that they could react with H2O or O2,and TMPs are oxidized to metal oxides or hydroxides,Meanwhile the low valence phosphorus is oxidized to phosphate and dissolved in the reaction medium,resulting in the loss of phosphorus in TMPs.The stability of TMPs could be improved by means of tuning the polarity of support surface,coating protective layer,and doping foreign elements.
关键词
过渡金属磷化物/物化性质/制备方法/稳定性增强策略
Key words
transition metal phosphide/physicochemical properties/preparation method/stability enhancement strategies
维普
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