Journal
CERAMICS INTERNATIONAL
Volume 45, Issue 10, Pages 13409-13413Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2019.04.038
Keywords
Microwave exfoliation; Multilayer graphene nanoplatelets; Liquid-phase exfoliation; Kitchen mixer
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We report an industrially viable promising approach to produce micrometer-sized multilayer graphene nano-platelet powder (MGNP) in a scalable quantity via microwave-assisted exfoliation of graphite (MEG) and fragmented into MGNP through liquid-phase exfoliation in the co-solvent mixture by kitchen mixer (KM). KM allows rapid delaminating MEG into MGNP by shear force dominated exfoliation. Majority of MGNPs are with a diameter of few micrometers and thickness is in nanometers. MGNP are crystalline with very limited defects was confirmed by Raman measurements and transmission electron microscopy. This process transforms, more than 86% of graphite flakes into MGNP. This advanced approach opens a new pathway to produce MGNP in bulk quantity as it is feasible, rapid, and cost-effective.
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