title: Electrocatalytic hydrogenation of 4-chlorophenol on the glassy carbon electrode modified by composite polypyrrole/palladium film.
abstract: A polypyrrole/palladium composite film was prepared on a glassy carbon electrode by the electrochemical deposition method. The palladium particles were uniformly dispersed on a polypyrrole film that was previously electrodeposited on a glassy carbon electrode. By controlling the polymerization process of pyrrole, a highly porous polypyrrole film was obtained; this kind of structure provided more surface areas for depositing palladium particles. The sizes of Pd particles deposited on the porous polypyrrole film are about 15-30 nm. The X-ray photoelectron spectroscopy results showed there was strong interaction between polypyrrole film and palladium particles. This modified electrode showed excellent current efficiency (49.5%) for electrochemical hydrogenation of 4-chlorophenol and the phenol was the sole product. The potential effect on the dechlorination process was also investigated.
authors.affiliation: College of Environmental & Energy Engineering, Beijing University of Technology, Beijing 100022, PR China.
authors.forename: Ge
authors.initials: G
authors.lastname: Chen
authors.forename: Zhenyao
authors.initials: Z
authors.lastname: Wang
authors.forename: Tao
authors.initials: T
authors.lastname: Yang
authors.forename: Daidi
authors.initials: D
authors.lastname: Huang
authors.forename: Dingguo
authors.initials: D
authors.lastname: Xia