文献类型：会议论文

英文题名：Pd nanoparticles supported on TiO2 nanotubes for ethanol oxidation in alkaline media

作者：Yang, Hou-Hua[1]; Qin, Yuan-Hang[1]; Wen, Sun[1]; Zhang, Xin-Sheng[1]; Niu, Dong-Fang[1]; Ma, Chun-An[2]; Yuan, Wei-Kang[1]

机构：[1] State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; [2] State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, China

会议论文集：Advances in New Catalytic Materials

会议日期：August 16, 2009 - August 20, 2009

会议地点：Cancun, Mexico

语种：英文

外文关键词：Catalyst activity - Titanium dioxide - Titanium - Yarn - Cyclic voltammetry - Catalytic oxidation - Ethanol - Scanning electron microscopy - Chronoamperometry - Palladium - Nanotubes - Field emission microscopes

摘要：Pd electrocatalysts supported on TiO2 nanotubes (TNTs) were prepared and used for the oxidation of ethanol in alkaline media. The morphology and structure of the TNTs and the Pd- TNTs/Ti catalyst were characterized by field emission scanning electron microscopy (FESEM). The FESEM results showed that the nanotube structure could be obtained after Ti anodized for 40 min at 20 V under 25 °C, and the nanotube length increased with anodizing time. TNTs/Ti40, TNTs/Ti50 and TNTs/Ti90 templates were prepared with Ti anodized for 40 min, 50 min and 90 min respectively. The composite catalysts activities were measured by cyclic voltammetry (CV), impedance spectroscopy and chronoamperometry. The results indicated that the Pd-TNTs/Ti50 catalyst had higher catalytic activity for ethanol oxidation compared with Pd-TNTs/Ti40 and Pd- TNTs/Ti90 catalysts. ? (2010) Trans Tech Publications, Switzerland.