电极
流动电池
钒
氧化还原
微波食品加热
碳纤维
材料科学
绝对电极电位
钯氢电极
无机化学
化学
氢醌电极
工作电极
分析化学(期刊)
化学工程
电化学
复合材料
电解质
有机化学
复合数
工程类
物理
物理化学
量子力学
作者
Yong Il Cho,Sejun Park,Ho Jung Hwang,Jin Goo Lee,Yu Kwon Jeon,Young Kwang Chu,Yong Gun Shul
标识
DOI:10.1002/celc.201402455
摘要
Abstract The vanadium redox flow battery (VRB) is an attractive energy storage technology due to its great advantages such as high energy efficiency and long life cycle. A carbon electrode has been commonly used as the electrode material for the VRB system. In this study, the effects of microwave treatment on the carbon electrode for the VRB are investigated under different microwave powers (0, 500, and 650 W). The microwave‐treated carbon electrode is about twice as large as the pristine carbon electrode in specific surface area, showing about 2.72, 4.46, and 4.63 m 2 g −1 at 0, 500, and 650 W, respectively. The oxygen‐containing functional groups such as CO, CO, and OCO, which can promote the redox reactions in the VRB system, are also increased by the microwave treatment. When the microwave‐treated carbon electrode is applied as the positive electrode for the VRB system, the coulomb, voltage, and energy efficiencies are enhanced. Thus, the microwave treatment can be a simple and effective method to prepare the carbon electrode for the VRB system.
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