Phosphoric Acid Doped Polybenzimidazole and Sulfonated Polyether Ether Ketone Composite Membrane for Hydrogen Production in High-Temperature Copper Chloride Electrolysis

被引:5
|
作者
Kamaroddin, M. F. A. [1 ,2 ]
Sabli, N. [1 ]
Abdullah, T. A. T. [2 ,3 ]
Abdullah, L. C. [1 ]
Izhar, S. [1 ]
Ripin, A. [2 ,3 ]
Ahmad, A. [2 ,3 ]
机构
[1] Univ Putra Malaysia, Dept Chem & Environm Engn, Fac Engn, Serdang 43400, Selangor, Malaysia
[2] Univ Teknol Malaysia, Inst Future Energy, Ctr Hydrogen Energy, Utm Johor Bahru 81310, Johor, Malaysia
[3] Univ Teknol Malaysia, Sch Chem & Energy Engn, Utm Johor Bahru 81310, Johor, Malaysia
来源
INTERNATIONAL CONFERENCE ON SUSTAINABLE ENERGY AND GREEN TECHNOLOGY 2018 | 2019年 / 268卷
关键词
PBI;
D O I
10.1088/1755-1315/268/1/012057
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A composite membrane of polybenzimidazole (PBI) and sulfonated polyether ether ketone (SPEEK) based electrolyzer that operates at higher working temperature above 80 degrees C is advantageous for faster electrochemical kinetics, higher current exchange density and more resistance to fuel impurities. A high-temperature copper chloride-based composite membrane electrolysis is proposed to overcome the issue of fuel diffusivity, membrane's thermal and mechanical stability in hydrogen production. The phosphoric acid (PA) functionalized composite PBI and SPEEK membranes were synthesized by a standard method followed with immersion in 85 wt% phosphoric acid at different temperatures for 80 minutes. The composite membranes have been characterized for water uptake, tensile strength, thermal stability by thermogravimetric (TGA) analysis, permeability by Cu diffusion cell and ionic exchange capacity (IEC). From the result, the PA doped PBI membrane (100 degrees C, 80 min) shows significant improvement in tensile strength (92.23 MPa) with PA doped PBI membrane (40 degrees C, 80 min) exhibited the lowest Cu diffusion at 5.56 x 10(-8) cm(2) s(-1). The composite PBI/ZrP has the advantage of the most thermally stable membrane and excellent ionic exchange capacity at 3.20 x 10(-3) mol g(-1).
引用
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页数:6
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