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.
Nonomura
Yoshimune
Y
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
Morita
Yusuke
Y
Deguchi
Shigeru
S
Mukai
Sada-atsu
SA
D000096:Acetone / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties; D014867:Water / Q000737:chemistry*
D014867:Water; D000096:Acetone; D006108:Graphite