以贮氢合金电极作催化还原电极,恒电位电解葡萄糖,发现合金经表面处理及电极的活化后,即可提高电流效率,在最优条件下,电解葡萄糖制山梨醇电流效率高达90%,葡萄糖转化率达80%以上.测试了电极的使用寿命,同时对电极中毒及再生方法进行了探讨.
Electrolysis of glucose was performed at constant potential using hydrogen_storage alloy as catalytic reduction electrode. It was found that the superficial treatment and activation of hydrogen_storage alloy powder had obvious effects on improving the current efficiency of sorbitol. Under the optimums, current efficiency of sorbitol by electrolyzing glucose was over 94%. The yield of sorbitol was over 80%, the lifespan of electrode was tested and analyzed, the ways of regeneration were discussed.
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