多元非贵金属异质结结构的制备及其电催化性能研究
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摘要
目前我们的经济不断增长依赖化石燃料的燃烧,但对化石燃料的过度使用也加剧空气污染和全球变暖~([1])。因此,开发清洁、可再生能源替代化石燃料是一个迫在眉睫的问题。在各种替代能源中,氢气是一种安全和清洁未来能源,其制备方法中电解水制氢是最有效的可持续、循环利用的方法。用于制氢的化学元素一类是贵金属Pt,另一类是过渡金属元素和非金属元素结合用于构建电催化材料,用于替代贵金属~([2])。Cu、Co、Ni三种过渡金属材料,在地壳中的含量仅次于Fe,且廉价、无毒,与非金属结合形成的化合物之间构成异质结,具有优异的催化性能。异质结结构能够改善单一催化材料在催化过程的不稳定性,优化材料的电子结构,并提高催化剂的传导性,催化性能得到互补。
At present, the excessive use of fossil fuels also contributed to air pollution and global warming. Therefore, the development of clean, renewable energy sources to replace fossil fuels is an urgent problem. Among various alternative energy sources, hydrogen is a safe and clean future energy, the method of electrolysis hydrogen production is the most effective sustainable and recycling. Noble metals Pt is the most common chemical element for electrolysis hydrogen production, and the combine of transition metal elements and non-metallic elements to build electro-catalytic materials for the replacement of noble metals. The content of three kinds of transition metal material Cu, Co, Ni is second only to Fe in the crust, and a heterojunction between the compounds with excellent catalytic performance, low-cost and non-toxic. The heterojunction structure can improve the stability and conductivity of the single catalytic material in the catalytic process, the catalytic performance is complementary.
引文
[1]Morales-Guio,C.G.;Stern,L.-A.;Hu,X..Chemical Society Reviews 2014,43(18),6555-6569.
    [2]Zou,X.;Zhang,Y..Chemical Society Reviews 2015,44(15),5148-5180.

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