NiMoP/C复合材料的制备及其电催化析氢性能

Preparation of NiMoP/C Composite Material and Electrocatalytic Hydrogen Evolution Performance

宋楗 韩乔 杨占旭

Jian Song Qiao Han Zhanxu Yang

辽宁石油化工大学 石油化工学院，辽宁 抚顺 113001

School of Petrochemical Engineering，Liaoning Petrochemical University，Fushun Liaoning 113001，China

以四水合钼酸铵[(NH4)6Mo7O24 ?4H2O]为钼源、六水合硝酸镍[Ni(NO3)2 ?6H2O]为镍源、H3PO4为磷源，采用溶液凝胶法制备前驱体，然后通过化学气相沉积法制备了块状NiMoP/C复合材料。采用XRD、SEM、TEM、XPS、Raman和N2?等温吸附脱附等测试技术，对NiMoP/C复合材料的物理化学性质进行了表征。同时通过CV、LSV、EIS等电化学测试手段，对NiMoP/C复合材料进行了电催化析氢性能测试。结果表明，NiMoP/C复合材料达到电流密度为-10 mA/cm2时的过电位为-158 mV，Tafel斜率为111 mV/dec，具有较高的电催化析氢活性和稳定性。由于没有任何复杂的电极制备过程，制备的NiMoP/C材料是一种较好的适用于酸性介质中电解水的阳极材料。

The precursor was prepared by sol?gel method using ammonium molydate tetrahydrate [(NH4)6Mo7O24·4H2O] as molybdenum source,nickle nitrate hexahydrate [Ni(NO3)2·6H2O] as nickel source and H3PO4 as phosphorus source.NiMoP/C composites were then prepared by a following CVD (chemical vapor deposition) method.The physical and chemical properties of NiMoP/C composites were characterized by XRD,SEM,TEM,XPS,Raman,N2?adsorption desorption and other test techniques. Meanwhile,the electrocatalytic hydrogen evolution performance of the NiMoP/C composite material was measured by CV,LSV, EIS,etc.The results show that the NiMoP/C composite material has high electrocatalytic hydrogen evolution performance with overpotential of -158 mV at the current density of -10 mA/cm2 and Tafel slope of 111 mV/dec. So the NiMoP/C material is an excellent anode material suitable for electrolyzing water in acidic media due to its simply electrode preparation process preparation method.

国家自然科学基金项目(21671092);辽宁省“兴辽英才”创新领军人才项目(XLYC1802057);辽宁省沈阳材料科学国家研究中心联合研发基金项目(2019010280?JH3/301);抚顺英才计划青年拔尖人才项目(FSYC202007001)

10.3969/j.issn.1006-396X.2022.01.001