Enhanced Water Desalination by Increasing the Electroconductivity of Carbon Powders for High-Performance Flow-Electrode Capacitive Deionization
文献类型：期刊论文
| 作者 | Tang, Kexin1,2,3; Yiacoumi, Sotira1; Li, Yuping2; Tsouris, Costas1,4 |
| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| 出版日期 | 2019-01-07 |
| 卷号 | 7期号:1页码:1085-1094 |
| ISSN号 | 2168-0485 |
| 关键词 | Flow-electrode capacitive deionization Carbon nanotubes Desalination Electrochemical impedance spectroscopy Charge/ion transfer |
| DOI | 10.1021/acssuschemeng.8b04746 |
| 英文摘要 | Flow-electrode capacitive deionization (FCDI) can be improved via enhanced charge transfer by increasing the flow-electrode (FE) conductivity. Since water is the main component of FE (>70%), the key to improving the electroconductivity lies in the properties of carbon materials. In this work, three types of carbon powders, i.e., activated carbon (AC), mesoporous carbon, and carbon nanotubes (CNTs), were employed in FEs to investigate the influence of powder properties on the FCDI performance. The morphology and structure of powders and electrochemical behavior and rheology of FEs were investigated to reveal the relationship between FE properties and desalination performance. Results show that, due to their unique electrosorption behavior, excellent conductivity, and enhanced conductivity through a bridging effect, CNT-based FE (carbon loading: 3 wt %) achieved the fastest (8.3 mg s(-1) m(-2)) and the most stable desalination (charge efficiency: 93.3%). A faster desalination (13.2 mg s(-1) m(-2)), due to significantly improved electroconductivity (13.2 times) with only a slight viscosity increase (1.1 times), was achieved by adding CNTs into 6.91 wt % AC-based concentration. This study highlights the importance of the intrinsic properties electroconductivity, in promoting FCDI desalination performance. |
| WOS关键词 | ANION-EXCHANGE MEMBRANE ; SUSPENSION ELECTRODES ; NANOTUBES ; VOLTAGE ; SUPERCAPACITOR ; DISPERSION ; EFFICIENT ; BINDER |
| 资助项目 | US Department of Energy[DE-AC05-00OR22725] ; School of Civil and Environmental Engineering of the Georgia Institute of Technology[51425405] ; School of Civil and Environmental Engineering of the Georgia Institute of Technology[21377130] ; National Natural Science Foundation of China (NSFC)[51425405] ; National Natural Science Foundation of China (NSFC)[21377130] ; China Scholarship Council (CSC)[201606250079] ; Laboratory Directed Research and Development Program of the Oak Ridge National Laboratory ; Department of Energy |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Engineering |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000455288800113 |
| 资助机构 | US Department of Energy ; School of Civil and Environmental Engineering of the Georgia Institute of Technology ; National Natural Science Foundation of China (NSFC) ; China Scholarship Council (CSC) ; Laboratory Directed Research and Development Program of the Oak Ridge National Laboratory ; Department of Energy |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/27758]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Tsouris, Costas |
| 作者单位 | 1.Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA 2.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn, Div Environm Technol & Engn, Beijing 100190, Peoples R China 3.Tianjin Univ, Sch Chem Engn & Technol, Natl Engn Res Ctr Distillat Technol, Tianjin 300072, Peoples R China 4.Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA |
| 推荐引用方式 GB/T 7714 | Tang, Kexin,Yiacoumi, Sotira,Li, Yuping,et al. Enhanced Water Desalination by Increasing the Electroconductivity of Carbon Powders for High-Performance Flow-Electrode Capacitive Deionization[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(1):1085-1094. |
| APA | Tang, Kexin,Yiacoumi, Sotira,Li, Yuping,&Tsouris, Costas.(2019).Enhanced Water Desalination by Increasing the Electroconductivity of Carbon Powders for High-Performance Flow-Electrode Capacitive Deionization.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(1),1085-1094. |
| MLA | Tang, Kexin,et al."Enhanced Water Desalination by Increasing the Electroconductivity of Carbon Powders for High-Performance Flow-Electrode Capacitive Deionization".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.1(2019):1085-1094. |
入库方式： OAI收割
来源：过程工程研究所
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