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http://dx.doi.org/10.7316/KHNES.2014.25.2.151

The Synthesis and Characteristics of Covalently Cross-Linked SPEEK/Cs-substituted TPA/CeO2 Composite Membranes for PEMWE  

Hwang, Sungha (Department of chemistry Myongji Univ.)
Park, Daeyoung (Department of chemistry Myongji Univ.)
Oh, Seunghee (Department of chemistry Myongji Univ.)
Yoon, Daejin (Department of chemistry Myongji Univ.)
Oh, Yunsun (Department of chemistry Myongji Univ.)
Seo, Hyeon (Department of chemistry Myongji Univ.)
Kang, Aansoo (Department of engineering chemistry Myongji Univ.)
Moon, Sangbong (Elchem Tech Co., Ltd.)
Chung, Janghoon (Department of chemistry Myongji Univ.)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.25, no.2, 2014 , pp. 151-160 More about this Journal
Abstract
CL-SPEEK/Cs-TPA/$CeO_2$ composite membrane was prepared for polymer electrolyte membrane water electrolysis (PEMWE). In order to improve the electrochemical, mechanical, durabilities and electrocatalytic characteristics, engineering plastic of polyether ether ketone (PEEK) as polymer matrix was sulfonated and the organic-inorganic blend composite membranes was prepared by loading cesium-substituted tungstophosphoric acid (Cs-TPA) by titration method with cross-linking agent contents of 0.01mL. Ceria ($CeO_2$) was used to scavenge free radicals which attack the membrane in the PEMWE circumstance and to increase the duration of the membrane. CL-SPEEK/$Cs_{(1)}$-TPA/CeriaIn conclusion, 1% membrane showed the optimum results such as 0.119 S/cm at $80^{\circ}C$ of proton conductivity and 62MPa of tensile strength.
Keywords
PEMWE; SPEEK; Covalently Cross-Link; $Cs_{(x)}$-TPA(Cs-substituted TPA); Ceria(Cerium(IV) oxide); Titration method;
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