Horumarka iyo falanqaynta dhaqaalaha ee xuubka sarrifka ion (AEM) hydroelectrolysis ee wax soo saarka hydrogen

AEM ilaa xad waa isku-dhafka PEM iyo diaphragm-dhaqameedka ku salaysan lye electrolysis. Mabda'a AEM electrolytic cell ayaa lagu muujiyay Jaantuska 3. At cathode, biyaha waa la dhimay si ay u soo saaraan hydrogen iyo OH -. OH - waxay dhex maraa diaphragm ilaa anode, halkaas oo ay dib isugu geyso si ay u soo saarto ogsijiinta.

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Li iyo al. [1-2] wuxuu bartay polystyrene heer sare ah oo quaternized ah iyo polyphenylene AEM wax-qabad heer sare ah oo biyo ah, natiijadu waxay muujisay in cufnaanta hadda jirta ay ahayd 2.7A / cm2 at 85 ° C at koronto ah 1.8V. Markaad isticmaalayso NiFe iyo PtRu/C sidii kicinta soo saarista hydrogen, cufnaanta hadda aad ayuu hoos ugu dhacay ilaa 906mA/cm2. Chen iyo al. [5] waxa uu bartay adeegsiga wax-ku-oolnimada sare ee birta elektrolytka ee birta ah ee aan sharafta lahayn ee ku jirta filimka elektrolyzerka alkaline. NiMo oxides waxaa lagu dhimay H2/NH3, NH3, H2 iyo N2 gaas heerkul kala duwan ah si loo soo saaro kicinta wax soo saarka hydrogen. Natiijooyinku waxay muujinayaan in NiMo-NH3 / H2 kicinta leh hoos u dhigista H2 / NH3 ay leedahay waxqabadka ugu fiican, cufnaanta hadda jirta ilaa 1.0A / cm2 iyo waxtarka beddelka tamarta ee 75% ee 1.57V iyo 80 ° C. Warshadaha Evonik, oo ku saleysan tignoolajiyada xuubka kala-soocida gaaska ee jira, waxay soo saartay walxo polymer ah oo la aqoonsan yahay oo loogu talagalay isticmaalka unugyada elektiroonigga ah ee AEM waxayna hadda ballaarineysaa wax soo saarka xuubka khadka tijaabada. Talaabada xigta waa in la xaqiijiyo isku halaynta nidaamka iyo hagaajinta qeexitaannada batteriga, iyadoo kor loo qaadayo wax soo saarka.

Waqtigan xaadirka ah, caqabadaha ugu waaweyn ee wajahaya unugyada elektaroonigga ah ee AEM waa la'aanta dhaqdhaqaaqa sare iyo caabbinta alkaline ee AEM, iyo koronto-yaqaannada birta ah ee qaaliga ah waxay kordhisaa qiimaha qalabka wax soo saarka. Isla mar ahaantaana, CO2 gelitaanka filimka unugga ayaa yarayn doona caabbinta filimka iyo caabbinta korantada, sidaas darteed hoos u dhigista waxqabadka korantada. Jihada horumarinta mustaqbalka ee electrolyzer AEM waa sida soo socota: 1. Horumarinta AEM leh conductivity sare, xulashada ion iyo xasiloonida muddada dheer alkaline. 2. Ka gudub dhibaatada qiimaha sare ee birta qaaliga ah ee birta qaaliga ah, horumarinta kicinta iyada oo aan lahayn birta qaaliga ah iyo waxqabadka sare. 3. Hadda, qiimaha bartilmaameedka ee AEM electrolyzer waa $ 20 / m2, taas oo u baahan in la yareeyo iyada oo loo marayo alaabta ceeriin ee raqiis ah iyo hoos u dhigista tallaabooyinka isku-dhafka ah, si loo yareeyo qiimaha guud ee AEM electrolyzer. 4. Iska yaree CO2 waxa ku jira unugga korantada iyo hagaajinta waxqabadka korantada.

[1] Liu L, Kohl P A. Anion oo qabanaya copolymers multiblock oo leh meelo kala duwan oo xidhiidhsan

[2] Li D, Park EJ, Zhu W, iyo al. Ionomers polystyrene aadka loo quaternized ah oo loogu talagalay waxqabadka sare ee anion beddelka xuubka korantada biyaha [J]. Tamarta Dabiiciga ah, 2020, 5: 378 - 385.


Waqtiga boostada: Febraayo-02-2023
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