Chinese Acad Sci;
Inst Coal Chem;
Taiyuan 030001;
Peoples R China;
Hebei Teachers Univ;
Dept Chem;
Shijiazhuang 050016;
Peoples R China;
Self-assembled; monolayer; cyclic; voltammetry; a.c.; impedance; ideally; polarizable; electrode; surface; roughness;