Porous reduced graphene oxide wrapped carbon nanotube–manganese dioxide nanocables with enhanced electrochemical capacitive performance

RSC Advances ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 6136-6141 ◽  
Author(s):  
Yiran Kang ◽  
Feng Cai ◽  
Hongyuan Chen ◽  
Minghai Chen ◽  
Rui Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Carbon Nanotube ◽  
Electrochemical Performance ◽  
Manganese Dioxide ◽  
Reduced Graphene Oxide ◽  
Capacitive Performance ◽  
Reduced Graphene ◽  
Ion Transportation ◽  
Enhanced Conductivity

CNT–MnO2 wrapped by porous rGO shows improved electrochemical performance owing to the enhanced conductivity and the convenient ion transportation.

Manganese dioxide nanoflakes anchored on reduced graphene oxide with superior electrochemical performance for supercapacitors

2017 ◽  
Vol 12 (3) ◽  
pp. 147-150
Author(s):  
Lifeng Zhang ◽  
Suqing Du ◽  
Yi Liu ◽  
Peng Zheng ◽  
Xiaoyan Yuan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Manganese Dioxide ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene

Reduced Graphene Oxide/Carbon Nanotube Composites for High Electrochemical Performance Supercapacitors

2018 ◽  
Vol 937 ◽  
pp. 25-29 ◽  
Author(s):  
Yan Zhen Huang ◽  
Xiao Min Chen ◽  
Dong Xu Li
Keyword(s):  
Graphene Oxide ◽  
Carbon Nanotube ◽  
Electrochemical Performance ◽  
Reduced Graphene Oxide ◽  
Surface Area ◽  
Weight Ratio ◽  
Single Atom ◽  
Homogeneous Distribution ◽  
Thick Sheet ◽  
Reduced Graphene

Graphene, whose structure is composed of a single-atom-thick sheet of sp2-hybridized carbon atom, provides large specific surface area, excellent mechanical and chemical properties. In this paper, reduced graphene oxide/carbon nanotube (rGO/CNT) composite, which had superior electrochemical performance, was synthesized via a facile, handy and cheap method. Electrochemical tests showed that rGO/CNT composite that the weight ratio of graphene oxide (GO) to CNTs is 7.5 to 1 exhibited the specific capacitance was 346.84 F/g at the current density of 2 A/g in 1 M H2SO4. The good performance of rGO/CNT composite was ascribed to huge surface area of rGO and homogeneous distribution of CNT, which prevented the aggregation of rGO sheets, increased the path of electron circulation and speeded up the electrolyte penetrating into the materials. Therefore, rGO/CNT composite had great potential on supercapacitors.

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