Research progress of nanostructured cobalt sulfides materials for supercapacitors

doi:10.16085/j.issn.1000-6613.2016.11.025

Abstract

Abstract: Due to their unique physical and chemical properties, nanostructured metal sulfide materials have shown excellent electrochemical performance. Herein, we present a review on the research progresses of the nanostructured cobalt sulfides materials for supercapacitors following the clues of the various morphologies of cobalt sulfides, their compositing with graphene and the nanoarrays grown directly on the conductive substrates. The preparation methods of the nanostructured cobalt sulfides and the principles of improving their electrochemical performance are summarized. Both the compositing with graphene and the growth on the conductive substrates strengthen the structure stability and facilitate the electron-transport, and the rate capability and cycling stability are improved accordingly. It indicates that the design and modification of hollow nanostructure, the compositing ways with graphene and the pretreatment of conductive substrates are the research emphases in the future. Additionally, it is crucial to develop a simple and cheap route for the large-scale production of cobalt sulfides in order to meet the need of the commercial applications.

Key words: supercapacitors, nanostructure, electrochemistry

摘要： 纳米结构硫化物因其独特的物理和化学性质，在超级电容器应用中展现出优良的电化学性能。本文以硫化钴多样的纳米形貌、与石墨烯的复合材料以及在导电基底上的直接生长为主线，综述了近年来国内外关于超级电容器以硫化钴作为电极材料的研究进展。归纳总结了硫化钴纳米结构的制备方法及其提高电化学性能的原理。与石墨烯的复合以及在导电基底上的直接生长则有利于结构稳定和电子传输，进而提高了倍率性能和循环稳定性。最后指出，硫化钴纳米中空结构的设计、修饰，与石墨烯的复合方式，对导电基底的预处理方式和开发纳米结构导电基底以及为商业化设计简单高效、价格低廉的大规模生产路线，将是未来研究的重点。

关键词: 超级电容器, 纳米结构, 电化学

CLC Number:

O614.81⁺2

LI Haonan. Research progress of nanostructured cobalt sulfides materials for supercapacitors[J]. Chemical Industry and Engineering Progress, 2016, 35(11): 3549-3557.

李浩楠. 纳米结构硫化钴作为超级电容器电极材料的研究进展[J]. 化工进展, 2016, 35(11): 3549-3557.

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