scholarly journals Sandwich-Like Reduced Graphene Oxide/Carbon Black/Amorphous Cobalt Borate Nanocomposites as Bifunctional Cathode Electrocatalyst in Rechargeable Zinc-Air Batteries

2018 ◽  
Vol 8 (27) ◽  
pp. 1801495 ◽  
Author(s):  
Jiqing Sun ◽  
Dongjiang Yang ◽  
Sean Lowe ◽  
Lijuan Zhang ◽  
Yazhou Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Carbon Black ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Zinc Air Batteries

Excellent microwave absorption of carbon black/reduced graphene oxide composite with low loading

2019 ◽  
Vol 54 (22) ◽  
pp. 13990-14001 ◽  
Author(s):  
Jin Tang ◽  
Song Bi ◽  
Xin Wang ◽  
Gen-liang Hou ◽  
Xun-jia Su ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Carbon Black ◽  
Reduced Graphene Oxide ◽  
Microwave Absorption ◽  
Oxide Composite ◽  
Reduced Graphene

Activated Carbon Based Supercapacitors with a Reduced Graphene Oxide Additive: Preparation and Properties

2020 ◽  
Vol 20 (7) ◽  
pp. 4073-4083 ◽  
Author(s):  
Jia-Wei Wang ◽  
Wei-Ke Zhang ◽  
Chen Jiao ◽  
Fang-Yuan Su ◽  
Cheng-Meng Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Activated Carbon ◽  
Carbon Black ◽  
Pore Size Distribution ◽  
Specific Capacitance ◽  
Reduced Graphene Oxide ◽  
Mesoporous Structure ◽  
Conductive Carbon Black ◽  
Reduced Graphene ◽  
Conductive Agent

We have successfully enhanced the performance of commercial supercapacitors that use Japan Kuraray 80F activated carbon and Super-P conductive carbon black as the conductive agent with reduced graphene oxide (rGO) additive. The ratios of conductive carbon black to rGO studied are 3:1, 5:1, 10:1, 15:1 and 1:0. The enhancement is most pronounced at 15:1, and the specific capacitance being 137.5 F g−1, which is a 23.8% improvement over the 1:0 control. The specific capacitance retention is 70.1% after 10000 cycles. The impedance resistance is also reduced to 1.5 Ω, which is 3.3 times lower than the 1:0 control. Additionally, the rGO additive does not alter the favorable pore size distribution of the primary matrix and successfully preserves its small mesoporous structure, which facilitates facile transport of electrolyte.

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