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Template-Free Synthesis of Nanorod-Assembled Hierarchical Zn1-xMnxS Hollow Nanostructures with Enhanced Pseudocapacitive Properties

机译:具有增强的伪电容特性的纳米棒组装的分层Zn1-xMnxS空心纳米结构的无模板合成

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摘要

Mixed-metal sulfide Zn1-xMnxS nanorod-assembled hierarchical hollow spheres were synthesized by a template-free solvothermal process based on Ostwald ripening. In the reaction system, glycerol plays a key role in the formation of ZnxMn1-xS hierarchical hollow structures by a quasi-microemulsion-template mechanism. When applied as capacitor electrode material, the hierarchical Zn1-xMnxS hollow spheres show excellent electrochemical performance. Specifically, Zn0.25Mn0.75S hollow spheres can deliver a high specific capacitance of 664 F g(-1) at a current rate of 1 A g(-1), which is almost five times of that of MnS under the same conditions and higher than those of previously reported single Mn-based compounds.
机译:在Ostwald熟化的基础上,采用无模板溶剂热法合成了金属硫化物Zn1-xMnxS纳米棒组装的分层空心球。在反应体系中,甘油通过准微乳液模板机制在ZnxMn1-xS分层空心结构的形成中起关键作用。当用作电容器电极材料时,分层的Zn1-xMnxS空心球表现出出色的电化学性能。具体地说,Zn0.25Mn0.75S空心球可以在1 A g(-1)的电流速率下提供664 F g(-1)的高比电容,这几乎是相同条件下MnS的五倍。高于以前报道的单锰基化合物。

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