Enhanced contact angle hysteresis of salt aqueous solution on graphite surface by a tiny amount of cation

Haijun Yang, Yangjie Wang, Yingying Huang +4

We experimentally observed the enhanced contact angle hysteresis (CAH) of dilute aqueous salt solution on graphite surface, i.e., 40.6${}^{\circ }$, 34.6${}^{\circ }$, and 27.8${}^{\circ }$, for…