石墨烯
电容去离子
气凝胶
材料科学
氧化物
剥脱关节
纳米技术
等离子体
电容
化学工程
光电子学
电极
电化学
化学
物理
物理化学
量子力学
工程类
冶金
作者
Weiqing Kong,Xu Ge,Qingao Zhang,Feng‐Yang Zhang,Desheng Kong,Xiao Fang Zhu,Meng Zhang,Yuanyuan Feng
出处
期刊:Carbon
[Elsevier]
日期:2023-11-01
卷期号:215: 118501-118501
被引量:1
标识
DOI:10.1016/j.carbon.2023.118501
摘要
Graphene produced by reducing graphene oxide has been an emerging candidate for capacitive deionization (CDI) and energy storage. However, the key factor for its commercial applications depends on the production methods that essentially determine its cost-effectiveness. Herein, we report a facile air-plasma method to achieve the highly efficient reduction of graphene oxide aerogel within 1 s, at room temperature, and without the need of any chemicals. It is demonstrated that by adjusting the plasma power ranging from 20 to 150 W, the interlayer distance between graphene layers, reduction degree (oxygen content), specific surface area, specific capacitance, and salt adsorption capacity can be tuned effectively for the obtained 3D graphene aerogel (GA). We also verify the validity of the air-plasma method for fabricating composite of GA with long Ag (or MnO2) nanowires, which can well maintain their unscathed 1D structure and redox activity for capturing ions. This air-plasma strategy, owing to its simplicity, time-saving and cost-effectiveness, opens a new pathway to large-scale synthesis of high-quality graphene with promising applications in CDI and beyond.
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