Jiang Yu, Yan Xuemin, Cheng Yapeng, Zhang Yan, Xiao Wei, Gan Lu, Tang Haolin
College of Chemistry and Environmental Engineering, Yangtze University Jingzhou 434023 Hubei China
School of Foreign Studies, Yangtze University Jingzhou 434023 Hubei China.
RSC Adv. 2019 Apr 30;9(23):13207-13213. doi: 10.1039/c8ra10232e. eCollection 2019 Apr 25.
MoO is one of the most promising electrodes for high energy density supercapacitors due to its layered structure, which facilitates the insertion/removal of small ions. However, the commercial recognition of MoO-based electrodes has been hampered by their low electronic conductivity, poor structural stability and narrow working potential window. A MoO/C composite (MCs) has been synthesized by a polymerization method followed by calcination of the obtained hydrogel. The obtained MCs electrode exhibits remarkable electrochemical performance in both aqueous (432.5 F g at a current density of 0.5 A g, 100% capacity retention after 10 000 cycles) and all-solid (220.5 F g at 0.5 A g) systems with porous C as the positive electrode, demonstrating its potential in commercial utilization.
由于其层状结构有利于小离子的嵌入/脱出，氧化钼是用于高能量密度超级电容器最有前景的电极材料之一。然而，基于氧化钼的电极由于其低电子导电性、较差的结构稳定性和狭窄的工作电位窗口，其商业认可度受到了阻碍。通过聚合方法合成了氧化钼/碳复合材料（MCs），然后对所得水凝胶进行煅烧。所制备的MCs电极在以多孔碳为正极的水系（电流密度为0.5 A g时为432.5 F g，10000次循环后容量保持率为100%）和全固态（0.5 A g时为220.5 F g）体系中均表现出卓越的电化学性能，证明了其商业应用潜力。
