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Advanced electrocatalytic properties of nano-CoWO4 and CoWO4itrogen-doped graphene oxide as the anode materials of water electrolysis

机译:纳米CoWO4和CoWO4 /氮掺杂氧化石墨烯作为水电解阳极材料的先进电催化性能

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摘要

The electrocatalytic performance of tungsten-based compounds was significantly enhanced via the crystal facets engineering, defect tuning, and combination with conductive 2D materials. Stating from Na WO ·2H O and CoCl ·6H O we synthesized two types of nano-CoWO with different morphologies. The products were characterized by XRD, FE-SEM, HRTEM, XPS and EDS in details. The electrochemical performance of CoWO nanorods was obviously superior to CoWO nanodots due to the enhanced electrochemical active areas. Furthermore, CoWO and nitrogen-doped graphene oxides (NGO) composites were obtained under the similar synthetic conditions. As expected, the CoWO /NGO composites showed significant improvement on electrochemical properties.
机译:钨基化合物的电催化性能通过晶面工程,缺陷调整以及与导电2D材料的组合得到了显着提高。从Na WO·2H O和CoCl·6H O的角度出发,我们合成了两种不同形态的纳米CoWO。产品通过XRD,FE-SEM,HRTEM,XPS和EDS进行了详细表征。由于增强的电化学活性面积,CoWO纳米棒的电化学性能明显优于CoWO纳米点。此外,在相似的合成条件下获得了CoWO和氮掺杂的氧化石墨烯(NGO)复合材料。如预期的那样,CoWO / NGO复合材料在电化学性能上显示出显着的改善。

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