Soluble Graphene Through Edge-Selective Functionalization
作者机构：Department of Chemistry and Mechanical Engineering and Materials Science and the Smalley Institute for Nanoscale Science and TechnologyRice UniversityMS 2226100 Main StreetHoustonTexas 77005USA
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2010年第3卷第2期
页 面：117-125页
核心收录：
基 金：We thank the U.S.Department of Energy's Office of Energy Efficiency and Renewable Energy within the Hydrogen Sorption Center of Excellence,No.DE-FC-36-05GO15073,the Air Force Office of Scientific Research(CONTACT),the Office of Naval Research through a Multidisciplinary University Research Initiative(MURI)with the University of California,Berkeley(00006766) and the Advanced Energy Consortium(member companies include BP America Inc.,Baker Hughes Inc.,Conoco-Phillips,Halliburton Energy Services Inc.,Marathon Oil Corp.,Occidental Oil and Gas,Petrobras,Schlumberger,Shell,and Total)for financial support.Thanks to Dr.Wenhua Guo for assistance with the TEM
主 题：Edge-selective functionalization graphene energy filtered transmission electron microscopy(EFTEM) chemically-assisted exfoliation
摘 要：Thermally expanded graphite was functionalized with 4-bromophenyl addends using the in situ diazonium formation procedure,and after mild sonication treatment in N,N’-dimethylformamide,thin graphene layers were exfoliated from the bulk *** chemically-assisted exfoliated graphene(CEG)sheets had higher solubility than pristine graphene without any stabilizer *** than 70%of these soluble flakes had less than 5 *** filtered transmission electron microscopy(EFTEM)elemental mapping provided evidence of the edge-selective diazonium functionalization with graphene.A majority of the Br signals came from the edges of the CEG indicating that the basal planes were not highly *** CEG was also characterized by X-ray photoelectron spectroscopy,atomic force microscopy,Raman spectroscopy,and transmission electron microscopy.
维普期刊数据库