Reduced graphene oxide with tunable C/O ratio and its activity towards vanadium redox pairs for an all vanadium redox flow battery

Carbon ◽  
2013 ◽  
Vol 55 ◽  
pp. 313-320 ◽  
Author(s):  
Wenyue Li ◽  
Jianguo Liu ◽  
Chuanwei Yan
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Reduced Graphene ◽  
Vanadium Redox

scholarly journals Analysis of the Performance of Phosphorus and Sulphur Co-Doped Reduced Graphene Oxide as Catalyst in Vanadium Redox Flow Battery

2022 ◽  
Author(s):  
Qiang Li ◽  
Junnan Wang ◽  
Tianyu Zhang ◽  
Zinan Wang ◽  
Zhichao Xue ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Specific Surface ◽  
Reduced Graphene Oxide ◽  
Surface Area ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Reduced Graphene ◽  
Vanadium Redox ◽  
Co Doped

Abstract In a vanadium redox flow battery, the traditional polyacrylonitrile based graphite felt (GF) electrode suffers the problems of low electrochemical catalytic activity and low specific surface area. To improve the performance of the GF electrode, we prepared phosphorus and sulphur co-doped reduced graphene oxide (PS-rGO) as catalyst with the simple treatment of reduced graphene oxide (rGO) in the mixture of phytic acid and sulfuric acid. The GF electrode modified with PS-rGO (PS-rGO-GF) was characterized by scanning electron microscope, specific surface area, X-ray photoelectron spectroscopy, cyclic voltammetry, electrochemical impedance spectroscopy, and charge-discharge tests. The PS-rGO-GF shows enhanced performance toward VO2+/VO2+ redox reaction. The battery with the PS-rGO decorated GF presents an excellent battery performance with the energy efficiency of 81.37 % at the current density of 80 mA cm-2 and the corresponding discharge capacity of 772 mAh due to the high catalytic activity of PS-rGO.

Sub-5 nm Graphene Oxide Nanofilm with Exceptionally High H+/V Selectivity for Vanadium Redox Flow Battery

2019 ◽  
Vol 2 (7) ◽  
pp. 4590-4596 ◽  
Author(s):  
Seul Chan Park ◽  
Tae Hoon Lee ◽  
Gi Hyeon Moon ◽  
Byung Su Kim ◽  
Jong Min Roh ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Vanadium Redox

scholarly journals Preparation of porous membrane with graphene oxide for vanadium redox flow battery

2020 ◽  
Vol 808 ◽  
pp. 012012
Author(s):  
Noor Fatina Emelin Nor Fadzil ◽  
Ebrahim Abouzari-Lotf ◽  
Saidatul Sophia Md Sha’rani ◽  
Teo Ming Ting ◽  
Nurfatehah Wahyuny Che Jusoh ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Porous Membrane ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Vanadium Redox
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