Ọganihu na nyocha akụ na ụba nke ion Exchange membrane (AEM) hydroelectrolysis maka mmepụta hydrogen

AEM bụ ruo n'ókè ụfọdụ ngwakọ nke PEM na diaphragm ọdịnala dabere lye electrolysis. E gosipụtara ụkpụrụ nke cell electrolytic AEM na Figure 3. Na cathode, mmiri na-ebelata iji mepụta hydrogen na OH -. OH - na-aga site na diaphragm gaa na anode, ebe ọ na-emegharị iji mepụta oxygen.

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Li et al. [1-2] mụrụ nke ukwuu quaternized polystyrene na polyphenylene AEM high-performance water electrolyzer, na nsonaazụ gosiri na njupụta ugbu a bụ 2.7A / cm2 na 85 ° C na voltaji nke 1.8V. Mgbe ị na-eji NiFe na PtRu/C dị ka ihe na-emepụta hydrogen, njupụta dị ugbu a belatara nke ukwuu ruo 906mA/cm2. Chen et al. [5] mụrụ ngwa nke elu-arụmọrụ na-adịghị mma metal electrolytic catalyst na alkaline polymer film electrolyzer. NiMo oxides e belatara site H2/NH3, NH3, H2 na N2 gas na okpomọkụ dị iche iche iji synthesize electrolytic hydrogen mmepụta catalysts. Nsonaazụ na-egosi na NiMo-NH3 / H2 catalyst na H2 / NH3 Mbelata nwere arụmọrụ kachasị mma, na njupụta ugbu a ruo 1.0A / cm2 na ike ntụgharị ike nke 75% na 1.57V na 80 ° C. Ụlọ ọrụ Evonik, dabere na teknụzụ nkewa gas nke dị ugbu a, emepụtala ihe eji eme ihe na polymer maka ojiji na sel electrolytic AEM ma na-agbasawanye mmepụta akpụkpọ ahụ ugbu a na ahịrị pilot. Nzọụkwụ ọzọ bụ iji nyochaa ntụkwasị obi nke usoro ahụ ma melite nkọwa batrị, mgbe ị na-ebuli mmepụta.

Ka ọ dị ugbu a, isi ihe ịma aka na-eche sel AEM electrolytic ihu bụ enweghị ezigbo conductivity na alkaline resistance nke AEM, na electrocatalyst metal dị oké ọnụ ahịa na-abawanye ọnụ ahịa nke imepụta ngwaọrụ electrolytic. N'otu oge ahụ, CO2 na-abanye na ihe nkiri cell ga-ebelata ihe nkiri na-eguzogide ọgwụ na electrode, si otú ahụ na-ebelata ọrụ electrolytic. Ọdịnihu mmepe ntụziaka nke AEM electrolyzer bụ dị ka ndị a: 1. Zụlite AEM na elu conductivity, ion selectivity na ogologo oge alkaline kwụsie ike. 2. Imeri nsogbu nke ọnụ ahịa dị elu nke ihe na-eme ka metal dị oké ọnụ ahịa, ịmepụta ihe na-emepụta ihe na-enweghị ọla dị oké ọnụ ahịa na arụmọrụ dị elu. 3. Ugbu a, ihe mgbaru ọsọ nke AEM electrolyzer bụ $ 20 / m2, nke kwesịrị ibelata site na ihe ndị dị ọnụ ala ma belata usoro nhazi, iji belata ọnụ ahịa nke AEM electrolyzer. 4. Belata ọdịnaya CO2 na cell electrolytic ma melite arụmọrụ electrolytic.

[1] Liu L, Kohl P A. Anion na-eduzi multiblock copolymers na dị iche iche tethered cations[J].Journal of Polymer Science Part A: Polymer Chemistry, 2018, 56(13): 1395 - 1403.

[2] Li D, Park EJ, Zhu W, et al. Polystyrene ionmers nwere nnukwu quaternized maka arụmọrụ dị elu anion Exchange membrane water electrolysers[J]. Ike okike, 2020, 5: 378 - 385.


Oge nzipu: Feb-02-2023
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