A facile co-solvent strategy for preparation of graphene nanoplatelet powder: An industrially viable innovative approach. Issue 10 (July 2019)

• Record Type: Journal Article
• Authors: Padya, Balaji; Narasaiah, N.; Jain, P.K.; Rao, T.N.
• Is Part Of: Ceramics international. Volume 45:Issue 10(2019)
• Page Start: 13409
• Page End: 13413
• Publication Date: 2019-07
• Subjects: Microwave exfoliation -- Multilayer graphene nanoplatelets -- Liquid-phase exfoliation -- Kitchen mixer; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2019.04.038
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: We report an industrially viable promising approach to produce micrometer-sized multilayer graphene nanoplatelet 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.