Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (10): 2046.

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Electrolytic Synthesis of Succinic Acid on Ti/TiO2 Film Electrode

MA Chun-An*, ZHU Xiu-Shan, ZHAO Feng-Ming   

  1. State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, China
  • Received:2009-12-24 Online:2010-10-10 Published:2010-10-10
  • Contact: MA Chun-An. E-mail: science@zjut.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20376074)资助.

Abstract: Ti/TiO2 film electrode was prepared by in-situ anodic oxidation method in a mixture of 1.0 mol/L H2SO4 and 1.0 mol/L maleic acid solution. Then succinic acid was synthesized by technique of switching the polarity in the original solution. Elemental composition and valence state analysis of anodic oxidation film were detected by XPS. The porous structure and rutile structure of TiO2 film were observed by SEM and XRD. Electrochemical performance of the Ti/TiO2 film electrode was investigated by cyclic voltammetry, constant potential step and galvanostatic electrolysis experiments. The results indicated that an excellent electro-catalytic activity for reduction of maleic acid to succinic acid in H2SO4 solution could be confirmed. Galvanostatic electrolysis experiments were carried out on an anode of DSA and a cathode of Ti/TiO2 film electrode at 45 ℃. The experimental results gave the reduction yield of 95.94%, current efficiency of 95.57%, the purity of 99.28% and melting point of 185—187 ℃ for production of succinic acid.

Key words: Electrolytic synthesis, Anodic oxidation, Ti/TiO2 film electrode, Succinic acid

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