论文摘要
The different electrocatalytic reactors could be constructed for the electrocatalytic oxidation of 2,2,3,3-tetrafluoro-1-propanol（TFP） with two typical MnOx/Ti electrodes, i.e.the electrocatalytic membrane reactor（ECMR） with the Ti membrane electrode and the electrocatalytic reactor（ECR） with the traditional Ti plate electrode.For the electro-oxidation of TFP, the conversion with membrane electrode（70.1%） in the ECMR was 3.3 and 1.7 times higher than that of the membrane electrode without permeate flow（40.8%） in the ECMR and the plate electrode（21.5%） in the ECR, respectively.Obviously, the pore structure of membrane and convection-enhanced mass transfer in the ECMR dramatically improved the catalytic activity towards the electro-oxidation of TFP.The specific surface area of porous electrode was 2.22 m2·g-1.The surface area of plate electrode was 2.26 cm2（1.13 cm2× 2）.In addition, the electrochemical results showed that the mass diffusion coefficient of the MnOx/Ti membrane electrode(1.80 × 10-6cm2·s-1) could be increased to 6.87 × 10-6cm2·s-1 at the certain flow rate with pump, confirming the lower resistance of mass transfer due to the convection-enhanced mass transfer during the operation of the ECMR.Hence, the porous structure and convection-enhanced mass transfer would improve the electrochemical property of the membrane electrode and the catalytic performance of the ECMR,which could give guideline for the design and application of the porous electrode and electrochemical reactor.
论文目录
文章来源
类型: 期刊论文
作者: Hong Wang,Xin Wei,Yujun Zhang,Ronghua Ma,Zhen Yin,Jianxin Li
来源: Chinese Journal of Chemical Engineering 2019年01期
年度: 2019
分类: 工程科技Ⅰ辑
专业: 化学
单位: State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes,School of Materials Science and Engineering,Tianjin Polytechnic University,Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education),Nankai University,School of Environmental and Chemical Engineering,Tianjin Polytechnic University
基金: Supported by the National Natural Science Foundation of China(21676200,21576208),the Program for Innovative Research Team in University of Ministry of Education of China(IRT-17R80),the Science and Technology Plans of Tianjin(17JCYBJC19800),111 Project(B12015),College Students’ Innovation and Entrepreneurship Project(201510058083)
分类号: O646
页码: 150-156
总页数: 7
文件大小: 7852K
下载量: 15
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