Balasingam Suresh Kannan, Lee Minoh, Kim Byung Hoon, Lee Jae Sung, Jun Yongseok
Department of Materials Chemistry & Engineering, Konkuk University, Seoul 05029, Republic of Korea.
School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea.
Dalton Trans. 2017 Feb 14;46(7):2122-2128. doi: 10.1039/c6dt04466b.
In the present study, we have synthesized high surface area MoS sponge electrodes via a facile hydrothermal method followed by a freeze drying process. The performance of the MoS based symmetric capacitor showed a high specific capacitance value of around 128 F g at a scan rate of 2 mV s, and also a single electrode showed a specific capacitance of 510 F g, which is a remarkable value to be reported for a MoS based material in a symmetric device configuration. Also, a high energy density of around 6.15 Wh kg and a good cyclic stability over 4000 cycles are obtained for the symmetrical cell.
在本研究中，我们通过简便的水热法并随后进行冷冻干燥过程，合成了高比表面积的MoS海绵电极。基于MoS的对称电容器在扫描速率为2 mV s时表现出约128 F g的高比电容值，并且单个电极的比电容为510 F g，这对于基于MoS的材料在对称器件配置中而言是一个值得报道的显著值。此外，对称电池还获得了约6.15 Wh kg的高能量密度以及超过4000次循环的良好循环稳定性。
