Kim, Hye-Rim Lee, Sung-Hyun Lee, Kun-Hong 2024-01-19T22:04:19Z 2024-01-19T22:04:19Z 2021-09-03 2018-08 0008-6223 https://pubs.kist.re.kr/handle/201004/121120 Single-layered graphenes with large sizes were produced by inserting solvent molecules between the graphene layers in graphite intercalation compounds (GICs) followed by direct microwave exfoliation 'in a solvent' to prevent re-aggregation. During the microwave exfoliation of GICs in deionized (DI) water, single-layered graphenes were produced, and their lateral sizes ranged from several micrometers to several tens of micrometers. The entire process time was less than 2 h, and toxic compounds were not used. In the case of microwave exfoliation in acetone or ethanol, graphenes with a thickness of 3-6nm were mainly produced rather than single-layered graphenes. In addition, when the produced graphenes were directly dispersed in DI water, the dispersed state was maintained for 2 days. This method is very advantageous for industrial scale-up. (C) 2018 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD GRAPHITE INTERCALATION Scalable production of large single-layered graphenes by microwave exfoliation 'in deionized water' Article 10.1016/j.carbon.2018.04.014 1 CARBON, v.134, pp.431 - 438 CARBON 134 431 438 scie scopus 000433244900046 2-s2.0-85047384289 Chemistry, Physical Materials Science, Multidisciplinary Chemistry Materials Science Article GRAPHITE INTERCALATION