An overview of the development of polymer electrolyte membranes for brine electrolysis applications
کد مقاله : 1105-17THECSI
نویسندگان
عطیه سادات سادات کچویی *
دانشکده مهندسی شیمی، دانشگاه علم و صنعت ایران
چکیده مقاله
The state- of- the- art of membrane technology is characterized by a number of mature applications like PEM fuel cells, electrolyzers and etc. Amongst them, brine electrolysis technology is considered as an intensive energy consumption [1,8]. It is apparent that, cation exchange membranes (CEMs) is regarded as a prominent component which are currently composed of established materials including polymeric or inorganic material and feasibly can be scalable manufacturing procedures like interfacial polymerization, casting and coating.
One of the critical considerations for CEMs is their long-term stability to alkaline and oxidative media, and as such, a wide range of polymer backbones and appended cations have been evaluated as potential constructs for this purpose. The modified aromatic-hydrocarbon based CEMs can meet and even surpass the durability targets for electrolysis applications that are suitable such as sulfonated poly (ether ether ketone), sulfonated poly(styrene) and sulfonated poly(benzimidazole). Styrene- based polymers has been known as one of the promising candidates for this application since it has high thermo-oxidative stability and extraordinary mechanical properties as well as high cost effectiveness[6]. The most mitigation strategy is to synthesize a double- layer membrane that incorporated in hydrocarbon- based membranes. This double- layer membrane can be synthesized via two prominent functional groups containing sulfonated and carboxylated groups. Table1 represent some of research works related to CEMs.
There are few researches based on non- fluorinated- based membranes in this application and it can be addressing the urgent needs in developing new IEM and research in brine electrolysis applications.
کلیدواژه ها
Cation exchange membrane electrolysis; Brine electrolysis; Stability
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