纳米片状电极材料MnMoO4的电化学性能研究

作为一种对静电电容器和电池起桥梁作用的新型储能装置,超级电容器的出现有效地缓解了煤、石油等化石燃料对环境的污染,如果要获得性能优良的超级电容器,就必须对它的核心组成部件电极材料进行详细的研究。本文用水热法制备出一种可以作为超级电容器电极的MnMoO4材料,电化学测试结果表明当电流密度为5 A·g^-1时,获得的电容为1284.12 F·g^-1;当电流密度升高到50 A·g^-1时,电容值为1055.56 F·g^-1。通过对MnMoO4电极充放电循环性能测试可知,MnMoO4有良好的循环稳定性,当充放电持续3000圈后,电容仍然保留了初始值的93.80%。因此,水热法制备出的MnMoO4是一种非常有前景的超级电容器电极材料。

Study on Electrochemical Performance of Nanosheet Mn MoO4 Electrode Material

As a new type of energy storage device that acts as a bridge between traditional capacitors and batteries,the appearance of supercapacitors effectively alleviates the environmental pollution of fossil fuels such as coal and oil.In order to obtain a supercapacitor with excellent performance,it is necessary to study its core component of electrode material.A simple one-step hydrothermal method was used to preparesample,which can be used as a supercapacitor electrode material.By analyzing electrochemical performance,it is known that when the current density is 5 A·g^-1,a higher specific capacitance of1284.12 F·g^-1 can be obtained.In addition,when the current density increases to 50 A·g^-1,the specific capacitance is 1055.56 F·g^-1.In terms of cycle stability,the specific capacitance still retains initial value of 93.80%after 3,000 cycles,indicating thathas good cycle stability.Therefore,as-preparedcan be served as a promising supercapacitor electrode material using the hydrothermal method.