Integrated ionic sieving channels from engineering ordered monolayer two-dimensional crystallite structures

作     者：Wei Guo Kai Chil Jiahao Yan Lihong Bao Shuai Wang Yunqi Liu 郭巍;池凯;严佳浩;鲍丽宏;王帅;刘云圻

作者机构：Key Laboratory of Material Chemistry for Energy Conversion and StorageMinistry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology.Wuhan 430074China Department of Materials ScienceFudan UniversityShanghai 200433China Institute of Physics.Chinese Academy of SciencesBeijing 100010China 

基　　金：the National Natural Science Foundation of China(51772110 61890940) 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2020年第65卷第16期

页      码：1356-1362,M0003,M0004页

摘      要：Atomically thin solid-state channels enabling selective molecular transport could potentially be used in a variety of separation and energy conversion *** density of channels,their height,distance and edge structure are the key factors that dramatically impact the selective transport ***,such channels with small constrictions and atomic precision have been limited to proof-ofconcept demonstrations based on microscale two-dimensional(2D)crystal ***,we report the engineering of highly ordered,scalable monolayer graphene crystallite arrays by chemical vapor deposition(CVD)method with a modified anisotropic etching *** size,shape,distance and edge structure of the graphene crystallite arrays in a large area could be delicately controlled through tailoring the synthetic *** array structure can act as pillars to prop up a smooth single-crystal graphene film,and the fabricated integrated angstrom-size(3.4A)channels allow water transport but exclude hydrated ions,demonstrating potential in selective ionic sieving and nanofiltration practice.

主 题 词：Ionic sieving Two-dimensional Monolayer graphene Anisotropic etching 

学科分类：081704[081704] 07[理学] 070205[070205] 08[工学] 0817[工学-轻工类] 080501[080501] 0805[工学-能源动力学] 0703[理学-化学类] 070301[070301] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1016/j.scib.2020.04.017

馆 藏 号：203945667...