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采用类桑拿法制备了聚苯乙烯微球模板,结合双层Mo金属结构,获得了具有周期性结构的Mo金属催化电极.通过控制氧气对聚苯乙烯球的刻蚀时间,可有效调制Mo金属催化电极的横、纵向尺寸,从而获得不同的衬底比表面积.通过原子力显微镜表面形貌测试、电化学线性扫描、塔菲尔测试以及阻抗谱分析表明:增大刻蚀时间可有效提高Mo金属催化电极的表面粗糙度和比表面积,进而降低电荷传输电阻和塔菲尔斜率,促进催化电极/电解液界面处析氢反应的进行.采用类桑拿法和双层Mo金属结构制备周期性结构的方法简单,可大面积化,同时低温磁控溅射法制备的Mo金属催化电极成本低廉,温度兼容多种太阳电池器件,具有形成高效一体化光水解制氢器件的潜力.
The polystyrene microsphere template was prepared by a kind of sauna method, and the Mo metal catalytic electrode with periodic structure was obtained by combining the two-layer Mo metal structure. By controlling the etching time of oxygen on the polystyrene sphere, Mo metal The results of scanning electron microscopy (AFM), Tafel test and impedance spectroscopy analysis show that increasing the etching time can effectively improve the surface area of Mo metal Catalytic electrode surface roughness and specific surface area, and then reduce the charge transfer resistance and Tafel slope, and promote catalytic electrode / electrolyte interface hydrogen evolution reaction using Sauna method and double Mo metal structure preparation of periodic structure method It is simple and can be used in a large area. Meanwhile, the Mo metal catalytic electrode prepared by low temperature magnetron sputtering has the advantages of low cost and temperature compatible with many solar cell devices, and has the potential of forming a highly efficient integrated photolysis hydrogen production device.