Corresponding Author

Zhen YIN(yinzhen@tjpu.edu.cn);
Jian-xin LI(jxli@tjpu.edu.cn)


The cobalt oxide(Co3O4) nanoparticles were loaded on microporous Ti membrane to prepare Co3O4/Ti electrocatalytic membrane electrode by dip-coating method. The microstructures and electrochemical properties of Co3O4/Ti electrocatalytic membrane were investigated. The Co3O4/Ti electrocatalytic membrane reactor (ECMR) assembled by using the Co3O4/Ti electrocatalytic membrane as an anode was adopted for catalytic oxidation of benzyl alcohol to produce benzaldehyde and benzoic acid.The effects of different operation parameters on benzyl alcohol conversion, and selectivity to benzaldehyde and benzoic acid of ECMR were studied. The results indicated that the electrochemical performance and catalytic activity of Co3O4/Ti membrane were improved significantly. The values of 49.8% for the conversion of benzyl alcohol, 51.5% for the selectivity to benzaldehyde and 23.6% for the selectivity to benzoic acid were obtained under the operating conditions with the benzyl alcohol concentration of 10 mmol·L-1, pH of 7.0, residence time of 5.0 min, current density of 2.5 mA·cm-2 at ambient temperature and pressure.

Graphical Abstract


electrocatalytic oxidation, elctrocatalytic membrane reactor, cobalt oxide, benzyl alcohol oxidation

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