School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China; College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China.
School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China.
J Colloid Interface Sci. 2018 Dec 1;531:216-224. doi: 10.1016/j.jcis.2018.07.055. Epub 2018 Jul 19.
In this work, for the first time we report a kind of novel WO@MnWO core-shell structure prepared by a facile and cost-effective solution route. The core-shell structure consists of WO nanowire array as the core and MnWO nanosheets as the shell. The as-synthesized hybrid structures as the supercapacitor negative electrodes possess remarkably enhanced specific capacitance. By matching with MnO nanosheets as the positive electrode, a 2 V voltage asymmetric supercapacitor is assembled, which reveals an excellent rate capability with 92.11% capacity retention after 10,000 cycles. In addition, the as-obtained ASC presents outstanding cycling performance after 10,000 cycles at the working temperature of 3 °C.
在这项工作中，我们首次报道了一种通过简便且经济有效的溶液法制备的新型 WO@MnWO 核壳结构。该核壳结构由 WO 纳米线阵列作为内核和 MnWO 纳米片作为外壳组成。所合成的混合结构作为超级电容器的负极，具有显著增强的比电容。通过与 MnO 纳米片作为正极相匹配，组装了一个 2 V 电压不对称超级电容器，在 10,000 次循环后具有 92.11%的容量保持率，表现出优异的倍率性能。此外，所获得的 ASC 在 3°C 的工作温度下经过 10,000 次循环后表现出出色的循环性能。
