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Simple Preparation of High‐Quality Graphene Flakes without Oxidation Using Potassium Salts
Author(s) -
Kwon Jiyoung,
Lee Sun Hwa,
Park KwangHyun,
Seo DongHwa,
Lee Jinsup,
Kong ByungSeon,
Kang Kisuk,
Jeon Seokwoo
Publication year - 2011
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201002005
Subject(s) - graphene , graphite , potassium , intercalation (chemistry) , materials science , simple (philosophy) , nanotechnology , raw material , chemical engineering , chemistry , organic chemistry , composite material , metallurgy , philosophy , epistemology , engineering
Preparation of graphene flakes without oxidation is important to preserve the superb intrinsic properties of graphene. A new and simple route to produce few‐layer, flake‐type graphene with minimized oxidation (<2%) by the intercalation of potassium into raw graphite using potassium salts is proposed.