Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/100401
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Type: Journal article
Title: Experimental investigation of the mechanical grinding effect on graphene structure
Author: Myekhlai, M.
Munkhbayar, B.
Lee, T.
Tanshen, M.
Chung, H.
Jeong, H.
Citation: RSC Advances: an international journal to further the chemical sciences, 2014; 4(5):2495-2500
Publisher: Royal Society of Chemistry
Issue Date: 2014
ISSN: 2046-2069
2046-2069
Statement of
Responsibility: 
Munkhshur Myekhlai, B. Munkhbayar, Taejin Lee, Md. Riyad Tanshen, Hanshik Chung and Hyomin Jeong
Abstract: Graphene has been proven to be a promising material for various applications due to its outstanding chemical, physical, optical as well as mechanical properties. To further improve these properties of graphene, here we apply a grinding method with various speeds (100–600 rpm) of a planetary ball mill under wet conditions in graphene based aqueous solution. Therefore, the improvements in dispersion and thermal characteristics of the graphene–water solution were investigated based on the morphological and structural changes. The best dispersibility and highest thermal conductivity of graphene–water solution were observed for a grinding speed of 500 rpm. As a result, the grinding speed of 500 rpm is found as the optimum condition of planetary ball milling in the case study. The reason for the grinding speed of 500 rpm revealing the best condition is attributed to the reduced ratio (/D//G=0.221)of the D band and the G band in Raman spectroscopy. We believe that structurally upgraded graphene in this study would greatly improve the performance of the graphene based devices.
Rights: © The Royal Society of Chemistry 2014
DOI: 10.1039/c3ra45926h
Appears in Collections:Aurora harvest 3
Chemical Engineering publications

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