ʻO AEM i kekahi ʻano he hybrid o PEM a me ka diaphragm kuʻuna lye electrolysis. Hōʻike ʻia ke kumumanaʻo o ke kelepona electrolytic AEM ma ke Kiʻi 3. Ma ka cathode, hoʻemi ʻia ka wai e hana i ka hydrogen a me OH -. OH - kahe ma o ka diaphragm i ka anode, kahi e hui hou ai e hana i ka oxygen.
Ua aʻo ʻo Li et al. [1-2] i ka polystyrene quaternized kiʻekiʻe a me ka polyphenylene AEM high-performance water electrolyzer, a ua hōʻike nā hopena he 2.7A/cm2 ka nui o ke au ma 85°C ma kahi uila o 1.8V. I ka hoʻohana ʻana iā NiFe a me PtRu/C ma ke ʻano he mau mea hoʻouluulu no ka hana hydrogen, ua emi nui ka nui o ke au i 906mA/cm2. Ua aʻo ʻo Chen et al. [5] i ka hoʻohana ʻana o ka mea hoʻouluulu electrolytic metala ʻole kiʻekiʻe i loko o ka electrolyzer kiʻi polymer alkaline. Ua hoʻemi ʻia nā oxides NiMo e nā kinoea H2/NH3, NH3, H2 a me N2 ma nā mahana like ʻole e synthesize i nā mea hoʻouluulu hana hydrogen electrolytic. Hōʻike nā hopena ʻo ka mea hoʻouluulu NiMo-NH3/H2 me ka hoʻemi ʻana o H2/NH3 ka hana maikaʻi loa, me ka nui o ke au a hiki i ka 1.0A/cm2 a me ka pono o ka hoʻololi ikehu o 75% ma 1.57V a me 80°C. Ua hoʻomohala ʻo Evonik Industries, ma muli o kāna ʻenehana membrane hoʻokaʻawale kinoea i kēia manawa, i kahi mea polymer i hoʻopaʻa ʻia no ka hoʻohana ʻana i nā cell electrolytic AEM a ke hoʻonui nei i ka hana membrane ma kahi laina hoʻāʻo. ʻO ka hana aʻe, ʻo ia ka hōʻoia i ka hilinaʻi o ka ʻōnaehana a hoʻomaikaʻi i nā kikoʻī o ka pila, me ka hoʻonui ʻana i ka hana.
I kēia manawa, ʻo nā pilikia nui e kū nei i nā cell electrolytic AEM ʻo ia ka nele o ke conductivity kiʻekiʻe a me ke kū'ē alkaline o AEM, a ʻo ka electrocatalyst metala makamae e hoʻonui i ke kumukūʻai o ka hana ʻana i nā mea electrolytic. I ka manawa like, ʻo ke komo ʻana o CO2 i loko o ka ʻili cell e hōʻemi i ke kū'ē ʻana o ka ʻili a me ke kū'ē electrode, a laila e hōʻemi ana i ka hana electrolytic. ʻO ke kuhikuhi hoʻomohala e hiki mai ana o ka electrolyzer AEM penei: 1. Hoʻomohala iā AEM me ke conductivity kiʻekiʻe, ke koho ion a me ke kūpaʻa alkaline lōʻihi. 2. Lanakila i ka pilikia o ke kumukūʻai kiʻekiʻe o ka catalyst metala makamae, hoʻomohala i ka catalyst me ka ʻole o ka metala makamae a me ka hana kiʻekiʻe. 3. I kēia manawa, ʻo ke kumukūʻai pahuhopu o ka electrolyzer AEM he $20 /m2, pono e hoʻemi ʻia ma o nā mea maka haʻahaʻa a me nā ʻanuʻu synthesis i hoʻemi ʻia, i mea e hōʻemi ai i ke kumukūʻai holoʻokoʻa o ka electrolyzer AEM. 4. E hōʻemi i ka ʻike CO2 i loko o ke cell electrolytic a hoʻomaikaʻi i ka hana electrolytic.
[1] Liu L,Kohl P A. Anion e alakaʻi ana i nā copolymers multiblock me nā cation tethered like ʻole [J]. Journal of Polymer Science Part A: Polymer Chemistry, 2018, 56(13): 1395 — 1403.
[2] Li D, Park EJ, Zhu W, et al. Nā ionomers polystyrene quaternized kiʻekiʻe no nā electrolysers wai membrane hoʻololi anion hana kiʻekiʻe [J]. Nature Energy, 2020, 5: 378 — 385.
Ka manawa hoʻouna: Pepeluali-02-2023