Controlled Incorporation of Ni(OH)2 Nanoplates Into Flowerlike MoS2 Nanosheets for Flexible All-Solid-State Supercapacitors
Controlled Incorporation of Ni(OH)2 Nanoplates Into Flowerlike MoS2 Nanosheets for Flexible All-Solid-State Supercapacitors
复制标题
将 Ni(OH)2 纳米板可控地掺入花状 MoS2 纳米片中，用于柔性全固态超级电容器
DOI：
10.1002/adfm.201401268
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发表时间：
2014-11-12
影响因子：
19
通讯作者：
Liu, Zhongyuan
中科院分区：
文献类型：
--
作者：
Hao, Chunxue;Wen, Fusheng;Liu, Zhongyuan
本文采用微波水热法合成了自支撑三维分级结构MoS2@Ni（OH）（2）纳米复合材料。由于MoS 2和Ni（OH）（2）之间的协同效应，所制备的MoS2@Ni（OH）（2）纳米复合材料在水溶液电解液中表现出比MoS 2和Ni（OH）（2）更高的比电容和更好的循环稳定性。此外，通过在柔性PET基板上的两个MoS2@Ni（OH）（2）电极之间构成PVA/KOH凝胶电解质，容易地构造柔性全固态超级电容器。由此产生的超级电容器可以在高达1000 V/s的高速率下工作，具有优异的长寿命循环稳定性，在9000次循环后保持94.2%的初始电容，以及在极端弯曲期间的机械柔性。因此，MoS2@Ni（OH）（2）纳米复合材料是一种很有前途的柔性长寿命循环全固态超级电容器电极材料。
In this work, self-supporting three-dimensional hierarchical nanostructured MoS2@Ni(OH)(2) nanocomposites are synthesized via a facile single-mode microwave hydrothermal technique. The fabricated MoS2@Ni(OH)(2) nanocomposites for supercapacitors in aqueous electrolyte exhibit higher specific capacitance and better cyclic stability than those of MoS2 and Ni(OH)(2) due to the pronounced synergistic effect between MoS2 and Ni(OH)(2). Further, the flexible all-solid-state supercapcitor is readily constructed by composing the PVA/KOH gel electrolyte in between two MoS2@Ni(OH)(2) electrodes on the flexible PET substrates. The resulting supercapacitors can operate at high rate up to 1000 V/s, have excellent long-life cycling stability, retaining 94.2% of the initial capacitance after 9000 cycles, and mechanical flexibility during extreme bending, respectively. Thereby, the MoS2@Ni(OH)(2) nanocomposites are a promising electrode materials for flexible long-life cycling all-solid-sate supercapacitors.