Free Radical Reactions in Two Dimensions: A Case Study on Photochlorination of Graphene | |
Zhou, Lin ; Zhou, Lushan ; Yang, Mingmei ; Wu, Di ; Liao, Lei ; Yan, Kai ; Xie, Qin ; Liu, Zhirong ; Peng, Hailin ; Liu, Zhongfan | |
刊名 | small
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2013 | |
关键词 | graphene photochlorination free radical reactions chemical modification doping AUGMENTED-WAVE METHOD EXFOLIATED GRAPHENE RAMAN-SPECTROSCOPY TRILAYER GRAPHENE BILAYER GRAPHENE APPROXIMATION HYDROGENATION CHLORINATION REACTIVITY SHEETS |
DOI | 10.1002/smll.201202969 |
英文摘要 | Graphene, a two-dimensional giant-molecule of sp2-bonded carbon atoms, provides a perfect platform for studying free radical reaction chemistry in two-dimensions, which holds promise to control the chemical functionality of graphene. Free-radical photochlorination of graphene is used as an example to investigate the thickness, stacking order, and single- and double-side dependent reactivity in graphene. Anomalously low reactivity is observed in the photochlorination of AB-stacked bilayer graphene in comparison with that of few-layer graphene. Double-sided chlorination of graphene shows higher reactivity and chlorine coverage than single-sided reaction. It is also experimentally and theoretically demonstrated that chlorine free radicals at low coverage prefer to form a stable charge-transfer complex with graphene, which highly enhances graphene's conductivity and simultaneously generates a pseudo-bandgap through noninvasive doping. Moreover, the initial accumulation of chlorine radicals is considered as the rate-determining step of photochlorination of graphene.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000317689600025&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter; SCI(E); EI; 15; ARTICLE; 8,SI; 1388-1396; 9 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/150787] ![]() |
专题 | 化学与分子工程学院 |
推荐引用方式 GB/T 7714 | Zhou, Lin,Zhou, Lushan,Yang, Mingmei,et al. Free Radical Reactions in Two Dimensions: A Case Study on Photochlorination of Graphene[J]. small,2013. |
APA | Zhou, Lin.,Zhou, Lushan.,Yang, Mingmei.,Wu, Di.,Liao, Lei.,...&Liu, Zhongfan.(2013).Free Radical Reactions in Two Dimensions: A Case Study on Photochlorination of Graphene.small. |
MLA | Zhou, Lin,et al."Free Radical Reactions in Two Dimensions: A Case Study on Photochlorination of Graphene".small (2013). |
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