MoS2-modified graphite felt as a high performance electrode material for zinc–polyiodide redox flow batteries

2019 ◽  
Vol 6 (3) ◽  
pp. 731-735 ◽  
Author(s):  
Jian Liu ◽  
Ting Ma ◽  
Meng Zhou ◽  
Shuang Liu ◽  
Jin Xiao ◽  
...  
Keyword(s):  
Electrode Material ◽  
High Performance ◽  
Graphite Felt ◽  
Redox Flow Batteries ◽  
Flow Batteries

MoS2 nanoplates were in situ grafted onto graphite felt to enable high performance zinc–polyiodine redox flow batteries.

Nitrogen-Doped Carbon Spheres-Decorated Graphite Felt as a High-Performance Electrode for Fe Based Redox Flow Batteries

2021 ◽  
Author(s):  
Anarghya Dinesh ◽  
Anantha Mylarapattana Shankaranarayana ◽  
Santosh Mysore Srid ◽  
Narendra Kumar Muniswamy ◽  
Krishna Venkatesh ◽  
...  
Keyword(s):  
High Performance ◽  
Coulombic Efficiency ◽  
Electrochemical Techniques ◽  
Single Step ◽  
Carbon Spheres ◽  
Active Nitrogen ◽  
Graphite Felt ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Carbon Catalysts

Abstract In this paper, the performance of Fe based redox flow batteries (IRFBs) was dramatically improved by coating N-doped carbon spheres (NDCS) on the graphite felt electrodes. NDCS was synthesized by the single-step hydrothermal method using dextrose and ammonia as a precursor and coated over a graphite felt electrode by electrostatic spraying. The weight of NDCS required for the modification of the electrode to achieve the effective performance of the battery was studied using electrochemical techniques. Cyclic voltammetry (CV) and potentiodynamic polarization study was used to evaluate the kinetic reversibility and linear polarization resistance offered by the electrode towards electrolyte. The characterizing features of the NDCS, untreated graphite felt (UGF) electrode, and optimized modified graphite felt (MGF) electrode were analyzed using SEM, EDAX, XRD, and Raman spectroscopy. The charge-discharge studies were performed for the 132 cm2 IRFB using a 2 mg/cm2 MGF electrode as a positive electrode by varying the current densities from 20 to 60 mA/cm2. The cell resulted in an average coulombic efficiency (CE) of 93%, voltaic efficiency (VE) of 72%, and energy efficiency (EE) of 68% for 15 cycles at the current density of 30 mA/cm2. The improvement in the performance of the IRFB is due to the presence of electrochemically active nitrogen-bearing carbon catalysts. In this paper, the pioneering effort has been made to improve the efficiency of the IRFB with an active area of 132 cm2 using glycine as the ligand.

Holey aligned electrodes through in-situ ZIF-8-assisted-etching for high-performance aqueous redox flow batteries

2020 ◽  
Author(s):  
Jing Sun ◽  
Haoran Jiang ◽  
Chen Zhao ◽  
Xinzhuang Fan ◽  
Christopher Chao ◽  
...  
Keyword(s):  
High Performance ◽  
Redox Flow Batteries ◽  
Flow Batteries

CeO2decorated graphite felt as a high-performance electrode for vanadium redox flow batteries

RSC Advances ◽  
2014 ◽  
Vol 4 (106) ◽  
pp. 61912-61918 ◽  
Author(s):  
Haipeng Zhou ◽  
Jingyu Xi ◽  
Zhaohua Li ◽  
Zhengyang Zhang ◽  
Lihong Yu ◽  
...  
Keyword(s):  
High Performance ◽  
Graphite Felt ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

Water-activated graphite felt as a high-performance electrode for vanadium redox flow batteries

2017 ◽  
Vol 341 ◽  
pp. 270-279 ◽  
Author(s):  
Daniel Manaye Kabtamu ◽  
Jian-Yu Chen ◽  
Yu-Chung Chang ◽  
Chen-Hao Wang
Keyword(s):  
High Performance ◽  
Graphite Felt ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

TiNb2O7 nanoparticle-decorated graphite felt as a high-performance electrode for vanadium redox flow batteries

2018 ◽  
Vol 462 ◽  
pp. 73-80 ◽  
Author(s):  
Daniel Manaye Kabtamu ◽  
Anteneh Wodaje Bayeh ◽  
Tai-Chin Chiang ◽  
Yu-Chung Chang ◽  
Guan-Yi Lin ◽  
...  
Keyword(s):  
High Performance ◽  
Graphite Felt ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox
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