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Citation: YE Mao, WEI Jin-Ping, ZHOU Zuo-Xiang. Electrochemical Hydrogenation of Glucose to Sorbitol on Hydrogen-storage Alloy Cathode[J]. Chinese Journal of Applied Chemistry, ;2002, 19(10): 998-1001. shu

Electrochemical Hydrogenation of Glucose to Sorbitol on Hydrogen-storage Alloy Cathode

1.
Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071

Corresponding author: YE Mao,
Received Date: 1 March 2002
Available Online: 25 June 2002

Glucose was electrocatalytically hydrogenated to sorbitol on the hydrogen-storage alloy(RENi_3.9Co_0.59Mn_0.28Al_0.22) cathode where RE composed of 0.80 La, 0.02 Ce, 0.15 Nd, 0.04 Pr and trace Zr. The mass ratio of alloy powder to PTFE mixed in course of electrode preparation affects the cathode capability. At optimum condition:40℃, pH=12, current density 0.5 A/dm², catholyte containing 0.4 mol/L glucose and 0.5 mol/L sodium sulfate sorbitol in yield of 80% can be obtained, with current efficiency of 67%. It is suggested based on CV results that the active hydrogen atoms on the surface of hydrogen-storage alloy cathode initiate the hydrogenation of glucose to sorbitol.
- glucose,
- sorbitol,
- hydrogen-storage alloy,
- electroreduction
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