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Template‐Free Synthesis of Nanorod‐Assembled Hierarchical Zn 1− x Mn x S Hollow Nanostructures with Enhanced Pseudocapacitive Properties
Author(s) -
Jin Ying,
Xu Jiaying,
Wang Lanfang,
Lu Qingyi,
Gao Feng
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201603960
Subject(s) - ostwald ripening , nanorod , materials science , microemulsion , nanostructure , nanotechnology , electrochemistry , chemical engineering , spheres , electrode , chemistry , pulmonary surfactant , physics , astronomy , engineering
Mixed‐metal sulfide Zn 1− x Mn x S 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 Zn x Mn 1− x S hierarchical hollow structures by a quasi‐microemulsion‐template mechanism. When applied as capacitor electrode material, the hierarchical Zn 1− x Mn x S hollow spheres show excellent electrochemical performance. Specifically, Zn 0.25 Mn 0.75 S 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.