催化作用
氢
析氧
化学
丙醇
化学工程
膜
传质
制氢
膜反应器
无机化学
电极
电化学
色谱法
有机化学
甲醇
物理化学
生物化学
工程类
作者
Mingxia Yang,Senqing Fan,Jiaojiao Chen,Yu Chen,Chuang Li,Jiaxin Meng,Haijie Qing,Yangchao Liu,Zeyi Xiao
标识
DOI:10.1016/j.ces.2023.118923
摘要
An electrocatalytic membrane structured reactor (EMSR) fabricated by loading MnO2 catalyst in Ti membrane pores for oxidation of n-propanol coupled with hydrogen evolution. During the process of n-propanol oxidation coupled with hydrogen evolution by MnO2@Ti EMSR via flow-through mode, the conversion rate of n-propanol was increased by 44%, the selectivity of propionic acid was increased by 33%, and the Faraday efficiency was increased by 59%, compared with those of MnO2/Ti membrane with MnO2 immobilized on the membrane surface. Enhanced contact and mass transfer are two contributors for the catalytic performance improvement by MnO2@Ti EMSR via flow-through mode. Besides, the cell voltage during n-propanol oxidation coupled with hydrogen production is decreased by 305 mV with energy consumption reduced by 0.73 kWh NmH2-3, compared with those of hydrogen evolution by water splitting with oxygen evolution reaction. The achievements of this work provide a promising strategy for coproduction of propionic acid and hydrogen.
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