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DOI | 10.1126/science.aan5275 |
Size effect In Ion transport through angstrom-scale silts | |
Esfandiar, A.1; Radha, B.1,2; Wang, F. C.1,3; Yang, Q.2,4; Hu, S.2; Garaj, S.5,6,7; Nair, R. R.2,8; Geim, A. K.1,2; Gopinadhan, K.1 | |
2017-10-27 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 358期号:6362页码:511-513 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Peoples R China; Singapore |
英文摘要 | In the field of nanofluidics, it has been an ultimate but seemingly distant goal to controllably fabricate capillaries with dimensions approaching the size of small ions and water molecules. We report ion transport through ultimately narrow slits that are fabricated by effectively removing a single atomic plane from a bulk crystal. The atomically flat angstrom-scale slits exhibit little surface charge, allowing elucidation of the role of steric effects. We find that ions with hydrated diameters larger than the slit size can still permeate through, albeit with reduced mobility. The confinement also leads to a notable asymmetry between anions and cations of the same diameter. Our results provide a platform for studying the effects of angstrom-scale confinement, which is important for the development of nanofluidics, molecular separation, and other nanoscale technologies. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413757500042 |
WOS关键词 | GRAPHENE OXIDE MEMBRANES ; FREE-ENERGY ; SELECTIVITY ; NANOPORES ; HYDRATION ; NANOTUBE ; PORES |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/197203 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England; 2.Univ Manchester, Natl Graphene Inst, Manchester M13 9PL, Lancs, England; 3.Univ Sci & Technol China, Chinese Acad Sci, Dept Modern Mech, Key Lab Mech Behav & Design Mat, Hefei 230027, Anhui, Peoples R China; 4.Southwest Jiaotong Univ, Chinese Acad Sci, Sch Mat Sci & Engn, Key Lab Adv Technol Mat, Chengdu 610031, Sichuan, Peoples R China; 5.Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore; 6.Natl Univ Singapore, Ctr Adv Mat 2D, Singapore 117546, Singapore; 7.Natl Univ Singapore, Dept Biomed Engn, Singapore 117575, Singapore; 8.Univ Manchester, Sch Chem Engn & Analyt Sci, Manchester M13 9PL, Lancs, England |
推荐引用方式 GB/T 7714 | Esfandiar, A.,Radha, B.,Wang, F. C.,et al. Size effect In Ion transport through angstrom-scale silts[J]. SCIENCE,2017,358(6362):511-513. |
APA | Esfandiar, A..,Radha, B..,Wang, F. C..,Yang, Q..,Hu, S..,...&Gopinadhan, K..(2017).Size effect In Ion transport through angstrom-scale silts.SCIENCE,358(6362),511-513. |
MLA | Esfandiar, A.,et al."Size effect In Ion transport through angstrom-scale silts".SCIENCE 358.6362(2017):511-513. |
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