Highly ion-selective graphene-oxide-based membranes for nanofluidic osmotic energy conversion
文献类型：期刊论文
| 作者 | Yu, Xin1; Ren, Wencai1,2 |
| 刊名 | CARBON
 |
| 出版日期 | 2024-04-25 |
| 卷号 | 224页码:6 |
| 关键词 | GO -based membrane Ion selectivity Ion transport Aqueous stability Nanofluidics Osmotic energy conversion |
| ISSN号 | 0008-6223 |
| DOI | 10.1016/j.carbon.2024.119046 |
| 通讯作者 | Ren, Wencai(wcren@imr.ac.cn) |
| 英文摘要 | Graphene oxide (GO) membranes have shown great potential for water treatment and osmotic energy conversion. However, the inherent challenge with GO membranes lies in their instability in water. While reduction techniques can improve stability, they simultaneously compromise selective ion transport properties due to the loss of functional groups. Here, we report preassembly modified GO (GOTA) membranes by using tannic acid (TA) as modification reagent. It is found that the TA molecules not only act as reducing agent, enhancing the aqueous stability of the membrane by generating stacked graphitic sp2 domains but also serve as intercalating agent, improving the selective ion transport properties by creating localized areas with high charge density and enlarged interlayer spacing. The cation selective number of GOTA membranes is -0.94-0.89 for different salinity gradients, much better than the thermally reduced GO membranes. In energy conversion system, the output power density approaches -0.32 W m- 2 for the artificial seawater and river water with energy conversion efficiency of 41.7%. Meanwhile, the GOTA membranes exhibit excellent structural stability in various solution environments. This work demonstrates the importance of nanofluidic structure in improving the performance of ion -selective membranes and provides insights into the construction of advanced osmotic energy conversion system. |
| 资助项目 | National Natural Science Foundation of China[52188101] ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences[ZDBS-LY-JSC027] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB30000000] ; LiaoNing Revitalization Talents Program[XLYC2201003] |
| WOS研究方向 | Chemistry ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001214948900001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; LiaoNing Revitalization Talents Program |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ren, Wencai |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Xin,Ren, Wencai. Highly ion-selective graphene-oxide-based membranes for nanofluidic osmotic energy conversion[J]. CARBON,2024,224:6. |
| APA | Yu, Xin,&Ren, Wencai.(2024).Highly ion-selective graphene-oxide-based membranes for nanofluidic osmotic energy conversion.CARBON,224,6. |
| MLA | Yu, Xin,et al."Highly ion-selective graphene-oxide-based membranes for nanofluidic osmotic energy conversion".CARBON 224(2024):6. |
入库方式： OAI收割
来源：金属研究所
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