Desalination stability of capacitive deionization using ordered mesoporous carbon: Effect of oxygen-containing surface groups and pore properties
文献类型：期刊论文
| 作者 | Duan, Feng1,2; Du, Xuan1; Li, Yuping1; Cao, Hongbin1; Zhang, Yi1 |
| 刊名 | DESALINATION
 |
| 出版日期 | 2015-11-16 |
| 卷号 | 376期号:NOV页码:17-24 |
| 关键词 | Capacitive deionization Surface groups Pore properties Cycling stability |
| ISSN号 | 0011-9164 |
| 英文摘要 | Ordered mesoporous carbons (OMCs) with various pore properties and oxygen-containing functional groups were obtained by changing preparation conditions and thermal or chemical modification after preparation. The modification hardly changed the pore structure of OMCs but did tailor surface properties. Desalination performance of capacitive deionization (CDI) by OMCs was investigated during 50 continuous cyclic adsorption/desorption experiments using a 500 mg/L NaCl solution and an applied potential of 1.2 V. The results showed pronounced degradation in the desalination performance for all materials as the cycle number increased, and an inversion in conductivity appeared at the beginning of the adsorption or desorption stage after several cycles. The surface properties are important for initial desalination, with the material with moderate oxygen functional groups displaying the largest desalination capacity, rate and charge efficiency. However, these groups had a negligible effect on the long-term desalination stability. The material which had a very small surface area and pore size underwent the most remarkable performance degradation, and large surface area and pore diameter were more favorable towards long-term stability. The deterioration in CDI performance was attributed partially to the decrease in surface area and mostly to an increase in oxygen functional groups on the electrodes, especially the anodes. (C) 2015 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Engineering, Chemical ; Water Resources |
| 研究领域[WOS] | Engineering ; Water Resources |
| 关键词[WOS] | SPONGE-TEMPLATED PREPARATION ; DE-IONIZATION PROCESSES ; LONG-TERM STABILITY ; WATER DESALINATION ; XEROGEL ELECTRODES ; BRACKISH-WATER ; NACL SOLUTIONS ; POROUS CARBON ; AREA GRAPHENE ; ZERO CHARGE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000362618700003 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/19603]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Duan, Feng,Du, Xuan,Li, Yuping,et al. Desalination stability of capacitive deionization using ordered mesoporous carbon: Effect of oxygen-containing surface groups and pore properties[J]. DESALINATION,2015,376(NOV):17-24. |
| APA | Duan, Feng,Du, Xuan,Li, Yuping,Cao, Hongbin,&Zhang, Yi.(2015).Desalination stability of capacitive deionization using ordered mesoporous carbon: Effect of oxygen-containing surface groups and pore properties.DESALINATION,376(NOV),17-24. |
| MLA | Duan, Feng,et al."Desalination stability of capacitive deionization using ordered mesoporous carbon: Effect of oxygen-containing surface groups and pore properties".DESALINATION 376.NOV(2015):17-24. |
入库方式： OAI收割
来源：过程工程研究所
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