摘要
研究了阴极材料及工艺条件对葡萄糖电解还原的影响。结果表明,添加剂a(NH4Cl)能有效地降低葡萄糖还原的过电势,抑制析氢,从而使产率大幅度地提高。最佳电解条件为含0.25mol·L(-1)添加剂a的1.0mol·L(-1)葡萄糖溶液,pH为8~9,Zn-Hg阴极,电流密度0.4A·dm(-2),温度32℃。在该条件下通常可得94%的产率。
A study was made of the effect of cathode material and various operating conditions on the elec- troboc reduchon of glucose. The findings suggest that the addihve a (NH4Cl) is effective on dropping the overpotential of glucose reduchon, checking hydrogen evolutinn, and increasing the output of sor bitol. The optmum operatmg conditions were as follows: 1. 0 mol· L(1) glucose solution with 0. 25 mol ·L(-1) addihve a, pH = 8 - 9, Zn - Hg cathode, temperatUre 32℃, current density 0. 4 A· dm(-2). Under these conditions, the yield of soIbitol was generally 94%.
出处
《浙江工业大学学报》
CAS
1998年第3期263-266,共4页
Journal of Zhejiang University of Technology