Metal sulfides are an emerging class of high-performance electrode materials for electrochemical energy storage devices. Here, a facile hydrothermal method is reported to assemble three-dimensional (3D) NiS-reduced graphene oxide (rGO) hybrid aerogels with strong coupling between the two compounds. It is intriguing to note that NiS nanoparticles are well anchored on the 3D porous and conductive scaffold constructed from wrinkled rGO nanosheets. When evaluated as binder-free electrode materials for supercapacitors, impressive electrochemical performances are presented. Specifically, the 3D NiS-rGO aerogel nanocomposite exhibits a high capacitance of 852 F g(-1), 526 F g(-1) based on the whole electrode mass (m(NiS) : m(GO) = 45 mg/50 mg) at a current density of 2 A g(-1) and 15 A g(-1), respectively. These satisfactory electrochemical behaviors, attributed to the introduction of reduced graphene oxide, suggest the great promise of fabricating graphene-supported hybrid electrode materials for high-performance energy applications.
机构:
Tongji Univ, Dept Chem, Key Lab Yangtze River Water Environm, Minist Educ, Shanghai 200092, Peoples R ChinaTongji Univ, Dept Chem, Key Lab Yangtze River Water Environm, Minist Educ, Shanghai 200092, Peoples R China
Wang, Huanwen
Yi, Huan
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Tongji Univ, Dept Chem, Key Lab Yangtze River Water Environm, Minist Educ, Shanghai 200092, Peoples R ChinaTongji Univ, Dept Chem, Key Lab Yangtze River Water Environm, Minist Educ, Shanghai 200092, Peoples R China
Yi, Huan
Chen, Xiao
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Tongji Univ, Dept Chem, Key Lab Yangtze River Water Environm, Minist Educ, Shanghai 200092, Peoples R ChinaTongji Univ, Dept Chem, Key Lab Yangtze River Water Environm, Minist Educ, Shanghai 200092, Peoples R China
Chen, Xiao
Wang, Xuefeng
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Tongji Univ, Dept Chem, Key Lab Yangtze River Water Environm, Minist Educ, Shanghai 200092, Peoples R ChinaTongji Univ, Dept Chem, Key Lab Yangtze River Water Environm, Minist Educ, Shanghai 200092, Peoples R China
机构:
Nanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R ChinaNanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R China
Zhang, Kaiyang
Wei, Yuanhao
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Nanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R ChinaNanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R China
Wei, Yuanhao
Huang, Jun
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Nanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R ChinaNanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R China
Huang, Jun
Xiao, Yingbo
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Nanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R ChinaNanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R China
Xiao, Yingbo
Yang, Weizu
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Nanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R ChinaNanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R China
Yang, Weizu
Hu, Ting
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Nanchang Univ, Sch Mat Sci & Engn, Nanchang 330031, Jiangxi, Peoples R ChinaNanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R China
Hu, Ting
Yuan, Kai
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Nanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R ChinaNanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R China
Yuan, Kai
Chen, Yiwang
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Nanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R China
Jiangxi Normal Univ, Inst Adv Sci Res IASR, Nanchang 330022, Jiangxi, Peoples R ChinaNanchang Univ, Inst Polymers & Energy Chem, Coll Chem, Nanchang 330031, Jiangxi, Peoples R China