引用本文:
叶茂, 魏进平, 周作祥. 储氢合金阴极电还原葡萄糖制备山梨醇[J]. 应用化学,
2002, 19(10): 998-1001.
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.
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.
储氢合金阴极电还原葡萄糖制备山梨醇
English
Electrochemical Hydrogenation of Glucose to Sorbitol on Hydrogen-storage Alloy Cathode
Abstract:
Glucose was electrocatalytically hydrogenated to sorbitol on the hydrogen-storage alloy(RENi3.9Co0.59Mn0.28Al0.22) 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.
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Key words:
- glucose
- / sorbitol
- / hydrogen-storage alloy
- / electroreduction
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