Ko te AEM, ki tētahi wāhi, he ranunga o te PEM me te hiko-whakarewa lye tuku iho e ahu mai ana i te diaphragm. Kei te Pikitia 3 te kaupapa o te pūtau hiko-whakarewa AEM. I te cathode, ka whakaitihia te wai hei whakaputa hauwai, ā, ka rere te OH-. OH- mā roto i te diaphragm ki te anode, ka honoa anō hei whakaputa hāora.
I rangahau a Li et al. [1-2] i te polystyrene kua whakawhā-kua me te polyphenylene AEM electrolyzer mahi-teitei, ā, i whakaatuhia e ngā hua ko te kiato o te iahiko he 2.7A/cm2 i te 85°C i te ngaohiko o te 1.8V. I te whakamahinga o te NiFe me te PtRu/C hei whakakorikori mō te hanga hauwai, ka heke nui te kiato o te iahiko ki te 906mA/cm2. I rangahau a Chen et al. [5] i te whakamahinga o te whakakorikori hiko whakarewa kore-pai teitei-pai i roto i te electrolyzer kiriata polymer kawakore. I whakaitihia ngā waikura NiMo e ngā hau H2/NH3, NH3, H2 me te N2 i ngā pāmahana rerekē hei hanga i ngā whakakorikori hanga hauwai hiko. E whakaatu ana ngā hua ko te whakakorikori NiMo-NH3/H2 me te whakaiti H2/NH3 te mea tino pai te mahi, me te kiato o te iahiko tae atu ki te 1.0A/cm2 me te pai o te hurihanga pūngao o te 75% i te 1.57V me te 80°C. I runga i tana hangarau kiriuhi wehenga hau o nāianei, kua whakawhanakehia e Evonik Industries tētahi rauemi pūmua kua patenttia hei whakamahi i roto i ngā pūtau hiko AEM, ā, kei te whakawhānui ake i te hanga kiriuhi i runga i tētahi raina whakamātautau. Ko te mahi e whai ake nei ko te manatoko i te pono o te pūnaha me te whakapai ake i ngā whakaritenga pākahiko, me te whakanui ake i te hanga.
I tēnei wā, ko ngā wero matua e pā ana ki ngā pūtau hikohiko AEM ko te kore o te kawe hiko teitei me te ātete kawakore o te AEM, ā, ka piki ake te utu o te hanga taputapu hikohiko nā te mea ka uru te CO2 ki te kiriata pūtau. I taua wā anō, ka whakaitihia te ātete kiriata me te ātete hikohiko e te CO2 e uru ana ki te kiriata pūtau, ā, ka whakaitihia te mahi hikohiko. Ko te ahunga whanaketanga ā muri ake nei o te mīhini hikohiko AEM koia tēnei: 1. Whakawhanakehia he AEM me te kawe hiko teitei, te whiriwhiri katote me te pumau kawakore mō te wā roa. 2. Whakakorehia te raruraru o te utu nui o te mīhini hikohiko whakarewa utu nui, whakawhanakehia he mīhini hikohiko kāore he konganuku utu nui me te mahi teitei. 3. I tēnei wā, ko te utu whāinga mō te mīhini hikohiko AEM he $20 /m2, me whakaiti mā roto i ngā rauemi mata iti te utu me te whakaiti i ngā mahi hanga, kia whakaitihia ai te utu whānui o te mīhini hikohiko AEM. 4. Whakaitihia te ihirangi CO2 i roto i te pūtau hikohiko me te whakapai ake i te mahi hikohiko.
[1] Liu L,Kohl P A. Ngā copolymer maha-poraka e whakahaere ana i te anion me ngā kationa here rerekē[J].Journal of Polymer Science Part A: Polymer Chemistry, 2018, 56(13): 1395 — 1403.
[2] Li D, Park EJ, Zhu W, et al. Ngā ionomer polystyrene kua whakawhā-kua mō ngā electrolyzer wai membrane whakawhiti anion mahi teitei[J]. Nature Energy, 2020, 5: 378 — 385.
Te wā tuku: Hui-tanguru-02-2023