Anomalously stable dispersions of graphite in water/acetone mixtures.
Highly stable dispersions of graphite are obtained in water/acetone mixtures, while graphite precipitates promptly in water and in acetone. We found that acetone facilitates disintegration of the graphite particles and their aggregates during a sonication process. Fine graphite particles are stabilised by the electrostatic repulsion due to negative charges on the graphite particle surfaces.
Department of Chemistry and Chemical Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Japan. nonoy@yz.yamagata-u.ac.jp
Yoshimune
Y
Nonomura
Yusuke
Y
Morita
Shigeru
S
Deguchi
Sada-atsu
SA
Mukai
D000096:Acetone / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties; D014867:Water / Q000737:chemistry*
D014867:Water; D000096:Acetone; D006108:Graphite