CHEN Fang, ZHOU De-bi, QI Wei, LU Dong, CHEN Yun-yang, WEN Mei-sheng

( School of Chemistry and Chemical Engineering, Central South University, Changsha 410083 )

Abstract: The synthesis of a composite electrocatalyst CoNi-PVP using polyvinylpyrrolidone (PVP) as protection agent was studied. The samples were characterized by IR, TEM, SEM-EDS measuremens. The results showed the samples were Co and Ni nanolines with the diameter ranged from 3 to 5 nm and the length 100 nm. The electrocatalytic activity of the CoNi-PVP electrode was investigated by cyclic voltammetry and chronopotentiography. The highest catalytic activity for oxidation of ethanol was found at the electrode with CoNi content of 2% and the mole ratio PVP:CoNi of 5:1.

Key words: High polymer PVP, Anode electrocatalyst, Ethanol, Electrochemistry

E-mail: zhoudb@mail.csu.edu.cn

Journal of Molecular Catalysis, Vol. 24, Issue 5, 2010, 463~468