From amorphous to crystalline: in situ growth Ni-Co chalcogenides hybrid nanostructure on carbon cloth for supercapacitor
From amorphous to crystalline: in situ growth Ni-Co chalcogenides hybrid nanostructure on carbon cloth for supercapacitor
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从非晶态到晶态：超级电容器用碳布上原位生长镍钴硫属化物杂化纳米结构
DOI：
10.1007/s11581-018-2700-6
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发表时间：
2018-09
期刊：
影响因子：
2.8
通讯作者：
Aiping Yu
中科院分区：
文献类型：
--
作者：
Ji Yan;Lathankan Rasenthiram;Hua Fang;Ricky Tj;ra;Lixia Wang;Lizhen Wang;Yong Zhang;Linsen Zhang;Aiping Yu
在这项工作中，具有可控制的无定形结构的Ni-CO硫化剂通过碳布的碳布成功生长。 NICO2（OH）6前体和硫乙酰酰胺之间的相互作用反应起着关键的RO
In this work, Ni-Co chalcogenides with controllable amorphous structure were successfully grown on carbon cloth via a facile surfactant-assisted hydrothermal route. The interacted reaction between NiCo2(OH)6precursor and thioacetamide plays a critical role in altering the morphology and crystal structure of Ni-Co chalcogenides. The varying active sites in NiCo2(OH)6and the H2S gas decomposed from thioacetamide are found to be the key factors for the formation of amorphous Ni-Co chalcogenides. By benefiting from the amorphous structure and hybrid nanosheet morphology, the as-prepared Ni-Co chalcogenides delivers a specific capacitance of 2361.5 F g−1while retaining 75.8% of its highest capacitance over 2000 cycles at 20 A g−1. The crystallized NiCo2S4possesses excellent cycling stability but low specific capacitance. This work paves a promising and simple way for precise synthesis amorphous/crystal metal chalcogenides as active materials in aqueous supercapacitors and other high-performance energy storage devices.
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