Rigid three-dimensional Ni3S4 nanosheet frames: controlled synthesis and their enhanced electrochemical performance
Rigid three-dimensional Ni3S4 nanosheet frames: controlled synthesis and their enhanced electrochemical performance
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刚性三维 Ni3S4 纳米片框架：受控合成及其增强的电化学性能
DOI：
10.1039/c4ra15607b
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发表时间：
2014
期刊：
影响因子：
3.9
通讯作者：
Hesun Zhu
中科院分区：
文献类型：
--
作者：
Lina Wang;Jiajia Liu;Li Li Zhang;Baosong Dai;Meng Xu;Muwei Ji;X. S. Zhao;Chuanbao Cao;Jiatao Zhang;Hesun Zhu
用简单的溶剂热法合成了由超薄纳米片组装而成的刚性三维(3D)Ni3S4纳米片骨架。与平面Ni3S4片材相比，3D Ni3S4纳米片材框架具有高自由体积和高抗压强度。它们可以提供非常高的比电容1213F g−1，并具有良好的倍率性能。此外，这些3D Ni3S4纳米片状框架由塑性变形的脊线稳定。稳定的纳米片状骨架在电化学测试中不会展开或坍塌，因此表现出增强的循环能力。
Rigid three-dimensional (3D) Ni3S4 nanosheet frames assembled from ultrathin nanosheets are synthesized via a facile solvothermal method. Compared to flat Ni3S4 sheets, 3D Ni3S4 nanosheet frames have both a high free volume and high compressive strength. They can deliver a very high specific capacitance of 1213 F g−1 with good rate performance. In addition, these 3D Ni3S4 nanosheet frames are stabilized by plastically deformed ridges. The stabilized nanosheet frames did not unfold or collapse during electrochemical tests, and thus showed enhanced cycling ability.