高效液相催化电解葡萄糖制氢过程研究  

High efficient hydrogen evolution from glucose electrolysis over liquid phase catalyst

作　　者：杨琦[1] 苏伟[1,2] 姚兰 孙艳 YANG Qi;SU Wei;YAO Lan;SUN Yan(School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;Tianjin Key Laboratory of Membrane and Desalination Technology,Tianjin 300072,China;School of Science,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津大学化工学院,天津300072 [2]天津市膜科学与海水淡化重点实验室,天津300072 [3]天津大学理学院,天津300072

出　　处：《现代化工》2018年第7期150-153,155,共5页Modern Chemical Industry

摘　　要：选取多金属氧酸盐(POM)为液相催化剂,在较低温度下,利用质子交换膜燃料电池电解葡萄糖制取氢气,探究预处理过程中加热温度、加热时间和溶液p H对加热诱导反应的影响。与传统电解法制氢不同的是采用POM作为液相催化剂和电荷转移体,而非贵金属催化剂。结果表明,在加热温度为100℃、加热时间为4 h的条件下,反应前后调节溶液pH,电解葡萄糖制氢的效果最优,产氢量与时间呈线性关系,且产氢过程中电压稳定。当电流密度为0.2 A/cm^2时,产生1标准立方米H_2(Nm^3)消耗的电能是1.755 kWh,是电解水电能消耗的42.48%。With aqueous polyoxometalates（POM） as liquid phase catalyst,hydrogen can be generated from electrolysis of glucose by using proton exchange membrane fuel cell at low temperature. The effects of heating temperature,heating time and p H of solution in the pretreatment process on the heating induced reaction are investigated.This method uses POM as both liquid catalyst and charge carrier instead of noble-metal catalyst used in traditional glucose electrolysis methods. The results show that the hydrogen evolution from glucose electrolysis can reach the best efficiency when the heating temperature is at 100℃,the heating lasts for 4 h and the pH is adjusted before and after the reaction. Hydrogen production has the linear relationship with time and the voltage remains stable during the H2 generation process.Production of one normal cubic meter of hydrogen only consumes 1. 755 kWh under a current density of 0. 2 A·cm^-2,which is around 42. 48% of the power consumption for the water electrolysis method.

关 键 词：制氢 葡萄糖 燃料电池 液相催化 电解 

分 类 号：TM911.4[电气工程—电力电子与电力传动]