Synthesis and Temperature-dependent Electrochemical Properties of Boron-doped Diamond Electrodes on Titanium  

作　　者：DU Li-li SUN Jian-rui CUI Hang LI Hong-dong CUI Tian LIN Hai-bo 

机构地区：[1]State Key Laboratory of Superhard Materials,Jilin University,Changchun 130012,P.R.China [2]College of Chemistry,Jilin University,Changchun 130012,P.R.China [3]State Key Laboratory of Theoretical and Computational Chemistry,Institute of Theoretical Chemistry,Jilin University,Changchun 130021,P.R.China

出　　处：《Chemical Research in Chinese Universities》2012年第3期507-510,共4页高等学校化学研究（英文版）

基　　金：Supported by the Project of the Development and Reform Commission in Jilin Province,China(No.2009-633);the New Century Excellent Talents in Universities of China(No.NCET-06-0303);the National Natural Science Foundation of China(No.20873051)

摘　　要：On the sand-blasting-treated titanium（Ti） substrate, the boron-doped diamond（BDD） electrodes with a wide potential window were prepared by microwave plasma chemical vapor deposition（MPCVD）. The electrochemi- cal oxidation ratios of phenol at BDD/Ti electrodes at elevated temperatures（from 20 ℃ to 80 ℃） were examined by the chemical oxygen demand（COD） of phenol electrolyte during electrolysis. The results show that the COD removal was increased at high temperatures and the optimized temperature for enhancing the electrochemical oxidation ratio of phenol is 60 ℃. The mechanism for the temperature-dependent electrochemical oxidation ratios of phenol at the electrodes was investigated. The study would be favorable for further improving the performance of BDD/Ti elec- trodes, especially working at high temperatures.On the sand-blasting-treated titanium（Ti） substrate, the boron-doped diamond（BDD） electrodes with a wide potential window were prepared by microwave plasma chemical vapor deposition（MPCVD）. The electrochemi- cal oxidation ratios of phenol at BDD/Ti electrodes at elevated temperatures（from 20 ℃ to 80 ℃） were examined by the chemical oxygen demand（COD） of phenol electrolyte during electrolysis. The results show that the COD removal was increased at high temperatures and the optimized temperature for enhancing the electrochemical oxidation ratio of phenol is 60 ℃. The mechanism for the temperature-dependent electrochemical oxidation ratios of phenol at the electrodes was investigated. The study would be favorable for further improving the performance of BDD/Ti elec- trodes, especially working at high temperatures.

关 键 词：BDD/Ti electrode Microwave plasma chemical vapor deposition PHENOL Electrochemical degradation 

分 类 号：TQ153.19[化学工程—电化学工业] TG139.7[一般工业技术—材料科学与工程]