Materials Today Energy ( IF 9.0 ) Pub Date : 2021-01-08 , DOI: 10.1016/j.mtener.2021.100637 Depeng Zhao , Meizhen Dai , Hengqi Liu , Xiaofei Zhu , Xiang Wu
Exploring high-efficient and low-cost electrode materials is very important to improve the energy conversion efficiency of catalysts. Metal oxide generally exhibits poor conductivity that restricts its wide applications. In this work, a series of ZnCo2O4@PPy nanowires are obtained through a facile hydrothermal route and subsequently electrochemical deposition process. Among them, ZnCo2O4@PPy-200 product shows superior OER performance with a low overpotential and Tafel slope of 60.77 mV/dec. As bifunctional catalysts to drive electrolysis of water, the samples deliver a cell voltage of 1.95 V at 100 mA/cm2 and long cycle stability.
中文翻译:
锚固在ZnCo 2 O 4纳米线上的PPy薄膜有助于有效的双功能电催化
探索高效,低成本的电极材料对于提高催化剂的能量转化效率非常重要。金属氧化物通常表现出差的导电性,这限制了其广泛的应用。在这项工作中,通过便捷的水热途径以及随后的电化学沉积过程获得了一系列的ZnCo 2 O 4 @PPy纳米线。其中,ZnCo 2 O 4 @ PPy-200产品显示出优异的OER性能,且低电势和Tafel斜率为60.77 mV / dec。作为驱动水电解的双功能催化剂,样品在100 mA / cm 2时可提供1.95 V的电池电压,并具有长循环稳定性。