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	Permeation through graphene ripples
	Liang,Tao1,6; He,Guangyu2,6; Wu,Xu3,6; Ren,Jindong3; Guo,Hongxuan4; Kong,Yuhan1; Iwai,Hideo5; Fujita,Daisuke4; Gao,Hongjun3; Guo,Haiming3
刊名	2d materials
	2017-02-01
卷号	4期号:2
关键词	Grapheme Ripples Permeation Dft calculations
ISSN号	2053-1583
DOI	10.1088/2053-1583/aa59ca
英文摘要	Abstract real graphene sheets show limited anti-permeation performance deviating from the ideally flat honeycomb carbon lattice that is impermeable to gases. ripples in graphene are prevalent and they could significantly influence carrier transport. however, little attention has been paid to the role of ripples in the permeation properties of graphene. here, we report that gases can permeate through graphene ripples at room temperature. the feasibility of gas permeation through graphene ripples is determined by detecting the initial oxidation sites of cu surface covered with isolated graphene domain. nudged elastic band (neb) calculations demonstrate that the oxygen atom permeation occurs via the formation of c–o–c bond, in which process the energy barrier through the rippled graphene lattice is much smaller than that through a flat graphene lattice, rendering permeation through ripples more favorable. combining with the recent advances in atoms intercalation between graphene and metal substrate for transfer-free and electrically insulated graphene, this discovery provides new perspectives regarding graphene’s limited anti-permeation performance and evokes for rational design of graphene-based encapsulation for barrier and selective gas separation applications through ripple engineering.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:2053-1583-4-2-AA59CA
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373513
专题	物理研究所
作者单位	1.College of Information Science & Electronic Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, People’s Republic of China 2.Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China 3.Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China 4.Nano Characterization Unit, National Institute for Materials Science, Sengen 1-2-1, Tsukuba, Ibaraki 305-0047, Japan 5.Surface & Microbeam Analysis, Materials Analysis Station, National Institute for Materials Science, Sengen 1-2-1, Tsukuba, Ibaraki 305-0047, Japan 6.Tao Liang, Guangyu He and Xu Wu contributed equally to this work.
推荐引用方式 GB/T 7714	Liang,Tao,He,Guangyu,Wu,Xu,et al. Permeation through graphene ripples[J]. 2d materials,2017,4(2).
APA	Liang,Tao.,He,Guangyu.,Wu,Xu.,Ren,Jindong.,Guo,Hongxuan.,...&Xu,Mingsheng.(2017).Permeation through graphene ripples.2d materials,4(2).
MLA	Liang,Tao,et al."Permeation through graphene ripples".2d materials 4.2(2017).

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