I-GDE sisifinyezo se-electrode yokusasazwa kwegesi, oko kuthetha i-electrode yokusasazwa kwegesi. Kwinkqubo yokwenziwa, i-catalyst igqunywa kumaleko wokusasazwa kwegesi njengomzimba oxhasayo, ize i-GDE icinezelwe ngobushushu kumacala omabini e-membrane ye-proton ngendlela yokucindezela ngobushushu ukwenza i-electrode ye-membrane.
Le ndlela ilula kwaye ivuthiwe, kodwa ineengxaki ezimbini. Okokuqala, umaleko we-catalytic olungiselelweyo utyebile, ufuna umthwalo ophezulu we-Pt, kwaye izinga lokusetyenziswa kwe-catalyst liphantsi. Okwesibini, unxibelelwano phakathi komaleko we-catalytic kunye ne-proton membrane alusondelelene kakhulu, nto leyo ebangela ukwanda kokumelana kwe-interface, kwaye ukusebenza ngokubanzi kwe-membrane electrode akuphezulu. Ke ngoko, i-GDE membrane electrode isusiwe ngokusisiseko.
Umgaqo wokusebenza:
Le maleko ibizwa ngokuba yi-gas distribution layer ikwi-edge ephakathi kwe-electrode. Ngoxinzelelo oluncinci kakhulu, ii-electrolyte ziyasuswa kule nkqubo inemingxuma. Ukumelana nokuhamba okuncinci kuqinisekisa ukuba igesi inokugeleza ngokukhululekileyo ngaphakathi kwe-electrode. Xa uxinzelelo lomoya luphezulu kancinci, ii-electrolyte kwinkqubo yemingxuma zibotshelelwe kuluhlu olusebenzayo. Le maleko yomphezulu ngokwayo inemingxuma emincinci kangangokuba igesi ayinakugeleza ngee-electrode iye kwi-electrolyte, nokuba kuxinzelelo oluphezulu. Le electrode yenziwa ngokusasazeka kunye nokusila okulandelayo okanye ukucinezela ngobushushu. Ukuvelisa ii-electrode ezinee-multilayer, izinto ezincinci zisasazwa kwi-mold kwaye zilungiswe kakuhle. Emva koko, ezinye izinto zifakwa kwiileya ezininzi kwaye uxinzelelo luyafakwa.
Ixesha leposi: Februwari-27-2023