title: Electroreductive dechlorination of chlorophenols with Pd catalyst supported on solid electrode.
abstract: Electroreductive dechlorination of chlorophenols with Pd catalyst supported on solidelectrode was studied. As solid electrodes, carbon cloth (CC), carbon felt (CF) and titanium mesh were used, and palladium was plated on solid electrodes by either electrolytic or electroless method. On each electrode with Pd, chlorophenols were qualitatively dechlorinated to phenol, while they were entirely intact on electrodes without Pd. Moreover, neither base electrode nor plating method significantly affected the activity of Pd as far as it was sufficiently loaded on the electrode. Based on the results in the experiments using one electrode repeatedly, Pd catalyst proved to possess a satisfactory duarability under the present condition. It was suggested that the reactive species responsinble for the dechlorination of chlorophenols could be formed during preliminary electrolysis. Thus, (Pd)x-H resulting from the adsorption of electrogenerated hydrogen on metallic Pd might be assumed most probable.
authors: Graduate School of Engineering, Saitama Institute of Technology, 1690 Fusaiji, Fukaya, Saitama 369-0293, Japan.
authors: Caixia
authors: Graduate School of Engineering, Saitama Institute of Technology, 1690 Fusaiji, Fukaya, Saitama, 369-0293, Japan.
authors: Atsushi
authors: A
authors: Matsunaga
authors: Graduate School of Engineering, Saitama Institute of Technology, 1690 Fusaiji, Fukaya, Saitama, 369-0293, Japan. Electronic address: tezuka@sit.ac.jp.
authors: Meguru
authors: M
authors: Tezuka
mesh_terms: D002244:Carbon / Q000737:chemistry; D000077482:Carbon Fiber; D002384:Catalysis; D002733:Chlorophenols / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D004566:Electrodes; D004572:Electrolysis / Q000379:methods*; D054879:Halogenation; D008855:Microscopy, Electron, Scanning; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry*
chemical_list: D000077482:Carbon Fiber; D002733:Chlorophenols; D010165:Palladium; D002244:Carbon
keywords: Pd catalyst; carbon cloth; carbon felt; chlorophenols; electroreductive dechlorination; titanium mesh