AEM wani ɓangare ne na gaurayawan PEM da kuma electrolysis na gargajiya na diaphragm. An nuna ƙa'idar ƙwayar lantarki ta AEM a Hoto na 3. A cathode, ana rage ruwa don samar da hydrogen da OH -. OH - suna gudana ta cikin diaphragm zuwa anode, inda yake sake haɗuwa don samar da iskar oxygen.
Li da abokan aikinsa [1-2] sun yi nazarin polystyrene mai ƙarfi da polyphenylene AEM mai ƙarfin aiki, kuma sakamakon ya nuna cewa yawan yanzu shine 2.7A/cm2 a 85°C a ƙarfin lantarki na 1.8V. Lokacin amfani da NiFe da PtRu/C a matsayin masu haɓaka hydrogen, yawan yanzu ya ragu sosai zuwa 906mA/cm2. Chen da abokan aikinsa [5] sun yi nazarin amfani da mai haɓaka electrolytic mai ƙarfi wanda ba shi da ƙarfi a cikin alkaline film polymer electrolyzer. An rage NiMo oxides ta hanyar H2/NH3, NH3, H2 da N2 gas a yanayin zafi daban-daban don haɗa masu haɓaka hydrogen na electrolytic. Sakamakon ya nuna cewa mai haɓaka NiMo-NH3/H2 tare da rage H2/NH3 yana da mafi kyawun aiki, tare da yawan yanzu har zuwa 1.0A/cm2 da ingancin canza makamashi na 75% a 1.57V da 80°C. Kamfanin Evonik Industries, bisa ga fasahar raba iskar gas da yake da ita, ya ƙirƙiro wani abu mai lasisin polymer don amfani da shi a cikin ƙwayoyin lantarki na AEM kuma a halin yanzu yana faɗaɗa samar da membrane akan layin gwaji. Mataki na gaba shine a tabbatar da ingancin tsarin da kuma inganta ƙayyadaddun bayanai na batir, yayin da ake haɓaka samarwa.
A halin yanzu, manyan ƙalubalen da ƙwayoyin lantarki na AEM ke fuskanta sune rashin yawan wutar lantarki da juriyar alkaline na AEM, kuma mai ɗaukar wutar lantarki mai daraja yana ƙara farashin ƙera na'urorin lantarki. A lokaci guda, shigar da CO2 cikin fim ɗin tantanin halitta zai rage juriyar fim da juriyar electrolyte, ta haka ne zai rage aikin electrolyte. Alkiblar ci gaban AEM electrolyzer a nan gaba ita ce kamar haka: 1. Haɓaka AEM tare da babban wutar lantarki, zaɓin ion da kwanciyar hankali na alkaline na dogon lokaci. 2. Shawo kan matsalar tsadar mai ɗaukar wutar lantarki mai daraja, haɓaka mai ɗaukar wutar lantarki ba tare da ƙarfe mai daraja da babban aiki ba. 3. A halin yanzu, farashin da ake sa ran amfani da shi na AEM electrolyzer shine $20 /m2, wanda ke buƙatar rage shi ta hanyar kayan masarufi masu araha da matakan haɗakarwa, don rage farashin AEM electrolyzer gabaɗaya. 4. Rage yawan CO2 a cikin tantanin lantarki da inganta aikin electrolyte.
[1] Liu L,Kohl P A. Anion yana gudanar da copolymers masu toshewa da yawa tare da cations daban-daban da aka haɗa[J].Journal of Polymer Science Sashe na A: Polymer Chemistry, 2018, 56(13): 1395 — 1403.
[2] Li D, Park EJ, Zhu W, da sauransu. ionomers masu ƙarfi na polystyrene don masu amfani da wutar lantarki na ruwa masu canza membrane na anion [J]. Nature Energy, 2020, 5: 378 — 385.
Lokacin Saƙo: Fabrairu-02-2023