Electrocatalytic activity of nitrogen-doped CNT graphite felt hybrid for all-vanadium redox flow batteries

2018 ◽  
Vol 43 (3) ◽  
pp. 1516-1522 ◽  
Author(s):  
Dae-Soo Yang ◽  
Jang Yong Lee ◽  
Sang-Woo Jo ◽  
Sang Jun Yoon ◽  
Tae-Ho Kim ◽  
...  
Keyword(s):  
Electrocatalytic Activity ◽  
Graphite Felt ◽  
Nitrogen Doped ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

Fabrication of nitrogen-doped graphite felts as positive electrodes using polypyrrole as a coating agent in vanadium redox flow batteries

2015 ◽  
Vol 3 (23) ◽  
pp. 12276-12283 ◽  
Author(s):  
Sangki Park ◽  
Hansung Kim
Keyword(s):  
Positive Electrodes ◽  
Coating Agent ◽  
Graphite Felt ◽  
Nitrogen Doped ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Novel Method ◽  
Vanadium Redox

A novel method for preparing nitrogen-doped graphite felts as positive electrodes in vanadium redox flow batteries was developed and studied. These materials were synthesized by directly coating a thin polypyrrole layer on the graphite felt surface followed by subsequent carbonization in the presence of Co (NGF-Co).

scholarly journals A three-dimensional conducting network of rGO-in-graphite-felt as electrode for vanadium redox flow batteries

2018 ◽  
Vol 4 (1) ◽  
pp. 60-65
Author(s):  
Hongrui Wang ◽  
Wei Ling ◽  
Jizhong Chen ◽  
Zhian Wang ◽  
Xian-Xiang Zeng ◽  
...  
Keyword(s):  
Electrocatalytic Activity ◽  
Three Dimensional ◽  
Rate Capability ◽  
Step Method ◽  
Graphite Felt ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
First Results ◽  
Electrochemical Charge Transfer ◽  
Vanadium Redox

AbstractGraphite felt (GF) with numerous merits has been widely used as electrode in all-vanadium redox flow batteries (VRFB), but its further application is still hindered by its intrinsically poor electrocatalytic activity. Herein, we propose a three-dimensional (3D) conducting network constructed with reduced graphene oxide (rGO) in the GF electrode via a two-step method. The 3D conducting network with abundant oxygen-containing functional groups in the GF is conducive to the transport of electrons between GF fibers and the electrochemical charge transfer to vanadium ions in the composite electrode; it can enhance the electrocatalytic activity and conductivity of GF. The VRFB using 3D rGO modified GF (mGF) electrode exhibited outstanding energy efficiency of 73.4% at a current density of 100 mA·cm−2, which is much higher than that with pristine GF (pGF) (65.4%); and better rate capability. These first results reveal that GF with 3D conducting network shows promising opportunities for the VRFB and other electrochemical flow systems

Ionic liquid derived nitrogen-doped graphite felt electrodes for vanadium redox flow batteries

Carbon ◽  
2020 ◽  
Vol 166 ◽  
pp. 131-137 ◽  
Author(s):  
Sang Jun Yoon ◽  
Sangwon Kim ◽  
Dong Kyu Kim ◽  
Soonyong So ◽  
Young Taik Hong ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Graphite Felt ◽  
Nitrogen Doped ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox ◽  
Felt Electrodes

Highly efficient and ultra-stable boron-doped graphite felt electrodes for vanadium redox flow batteries

2018 ◽  
Vol 6 (27) ◽  
pp. 13244-13253 ◽  
Author(s):  
H. R. Jiang ◽  
W. Shyy ◽  
L. Zeng ◽  
R. H. Zhang ◽  
T. S. Zhao
Keyword(s):  
Graphite Felt ◽  
Redox Flow Batteries ◽  
Highly Efficient ◽  
Boron Doped ◽  
Flow Batteries ◽  
Vanadium Redox ◽  
Felt Electrodes

Highly efficient and ultra-stable boron-doped graphite felt electrodes are designed, fabricated and tested for vanadium redox flow batteries.

scholarly journals 3D flower-like molybdenum disulfide modified graphite felt as a positive material for vanadium redox flow batteries

RSC Advances ◽  
2020 ◽  
Vol 10 (29) ◽  
pp. 17235-17246
Author(s):  
Lei Wang ◽  
Shuangyu Li ◽  
Dan Li ◽  
Qinhao Xiao ◽  
Wenheng Jing
Keyword(s):  
Ion Transport ◽  
Molybdenum Disulfide ◽  
Open Flower ◽  
Graphite Felt ◽  
Redox Flow Batteries ◽  
Positive Material ◽  
Flow Batteries ◽  
Vanadium Redox ◽  
Vanadium Ion

The open flower-like structure facilitates vanadium ion transport. The capacity and efficiency of a battery using MoS2/GF are dramatically increased.

Highly Energy-Efficient Vanadium Redox Flow Batteries with Thermo-Chemically Activated Graphite Felt Electrodes

2020 ◽  
Vol MA2020-02 (2) ◽  
pp. 208-208
Author(s):  
Vladimir Neburchilov ◽  
Ken Tsay ◽  
Khalid Fatih ◽  
Roberto Neagu ◽  
Oltion Kodra ◽  
...  
Keyword(s):  
Energy Efficient ◽  
Graphite Felt ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox ◽  
Felt Electrodes
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