RuO2/MWCNT/stainless steel mesh as a novel positive electrode in vanadium redox flow batteries

被引：17
作者：
Gobal, Fereydoon [1 ]
Faraji, Masoud [1 ]
机构：
[1] Sharif Univ Technol, Dept Chem, Tehran, Iran
来源：
RSC ADVANCES | 2015年 / 5卷 / 84期
关键词：
HYDROUS RUTHENIUM OXIDE; CARBON NANOTUBES; REACTION CATALYST; GRAPHITE; PERFORMANCE; COMPOSITE; PLATINUM; METHANOL; ELECTROCATALYST; DEPOSITION;
D O I：
10.1039/c5ra12342a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The present work describes the preparation and electrochemical characterization of RuO2/MWCNT/Stainless Steel Mesh (SSM) electrode as compared with a MWCNT/SSM electrode in the positive half-cell of a Vanadium Redox Flow Battery (VRFB). The electrochemical characterization of prepared electrode was carried out using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge/discharge procedures. The electrochemical activity of MWCNT/SSM modified with RuO2 as positive electrode in a VRFB was notably improved. The RuO2-included electrodes demonstrated high peak current ratio, small peak potential difference and high electron transfer rate constant, confirming excellent electro-catalytic activity and reversibility. These good electrochemical results, together with the long term stability of the prepared electrode, represent a significant step forward in the development of highly effective positive electrode materials for VRFBs.
引用
收藏
页码：68378 / 68384
页数：7
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