Electrochemical analysis and convection-enhanced mass transfer synergistic effect of MnO<sub>x</sub>/Ti membrane electrode for alcohol oxidation

Hong Wang; Xin Wei; Yujun Zhang; Ronghua Ma; Zhen Yin; Jianxin Li

doi:10.1016/j.cjche.2018.07.006

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Electrochemical analysis and convection-enhanced mass transfer synergistic effect of MnO_x/Ti membrane electrode for alcohol oxidation

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Electrochemical analysis and convection-enhanced mass transfer synergistic effect of MnO_x/Ti membrane electrode for alcohol oxidation
- Electrochemical analysis and convection-enhanced mass transfer synergistic effect of MnO_x/Ti membrane electrode for alcohol oxidation
- 中国化学工程学报（英文版） 2019年27卷第1期页码：150-156
- Affiliations：
  
  1. 2 School of Materials Science and Engineering, Tianjin Polytechnic University,Tianjin,China,300387
  2. 3 Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education), Nankai University,Tianjin,China,300071
  3. 4 School of Environmental and Chemical Engineering, Tianjin Polytechnic University,Tianjin,China,300387
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.07.006
  中图分类号：
- 纸质出版：2019
- Accepted：
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Hong Wang, Xin Wei, Yujun Zhang, 等. Electrochemical analysis and convection-enhanced mass transfer synergistic effect of MnO_x/Ti membrane electrode for alcohol oxidation[J]. 中国化学工程学报（英文版）, 2019,27(1):150-156. DOI: 10.1016/j.cjche.2018.07.006.

/Ti membrane electrode for alcohol oxidation[J]. Chinese Journal of Chemical Engineering, 2019, 27(1): 150-156.
Hong Wang, Xin Wei, Yujun Zhang, 等. Electrochemical analysis and convection-enhanced mass transfer synergistic effect of MnO_x/Ti membrane electrode for alcohol oxidation[J]. 中国化学工程学报（英文版）, 2019,27(1):150-156. DOI: 10.1016/j.cjche.2018.07.006. DOI：

/Ti membrane electrode for alcohol oxidation[J]. Chinese Journal of Chemical Engineering, 2019, 27(1): 150-156. DOI： 10.1016/j.cjche.2018.07.006.

摘要

Abstract

The different electrocatalytic reactors could be constructed for the electrocatalytic oxidation of 2

3-tetrafluoro-1-propanol (TFP) with two typical MnO

/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 m

·g

-1

. The surface area of plate electrode was 2.26 cm

(1.13 cm

×2). In addition

the electrochemical results showed that the mass diffusion coefficient of the MnO

/Ti membrane electrode (1.80×10

-6

·s

-1

) could be incr

eased to 6.87×10

-6

·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.

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Electrochemical analysis and convection-enhanced mass transfer synergistic effect of MnOx/Ti membrane electrode for alcohol oxidation

Electrochemical analysis and convection-enhanced mass transfer synergistic effect of MnOx/Ti membrane electrode for alcohol oxidation

DOI：10.1016/j.cjche.2018.07.006

摘要

Abstract

关键词

Keywords

references

Electrochemical analysis and convection-enhanced mass transfer synergistic effect of MnO_x/Ti membrane electrode for alcohol oxidation

Electrochemical analysis and convection-enhanced mass transfer synergistic effect of MnO_x/Ti membrane electrode for alcohol oxidation