I-GDE sisishunqulelo se-electrode yokusasazwa kwegesi, okuthetha i-electrode yokusasazwa kwegesi. Kwinkqubo yokuvelisa, i-catalyst igqunywe kumaleko we-gas diffusion njengomzimba oxhasayo, kwaye emva koko i-GDE ishushu icinezelwe kumacala omabini e-membrane yeproton ngendlela yoxinzelelo olushushu ukwenza i-electrode ye-membrane.
Le ndlela ilula kwaye ikhulile, kodwa ineziphene ezimbini. Okokuqala, i-catalytic layer elungiselelwe iyatyeba, ifuna umthwalo ophezulu wePt, kwaye izinga lokusetyenziswa kwe-catalyst liphantsi. Okwesibini, uqhagamshelwano phakathi kwe-catalytic layer kunye ne-membrane yeproton ayisondelene kakhulu, okubangela ukunyuka kwe-interface yokuchasana, kunye nokusebenza ngokubanzi kwe-membrane electrode ayiphezulu. Ke ngoko, i-electrode ye-membrane ye-GDE iye yapheliswa ngokusisiseko.
Umgaqo wokusebenza:
Into ebizwa ngokuba yi-gas distribution layer ibekwe phakathi kwe-electrode. Ngoxinzelelo oluncinci kakhulu, i-electrolytes iyasuswa kule nkqubo ye-porous. Ukuqukuqela okuncinci. ukumelana kuqinisekisa ukuba igesi inokuhamba ngokukhululekileyo ngaphakathi kwe-electrode. Kuxinzelelo lomoya oluphezulu kancinci, i-electrolytes kwinkqubo yepore ivaleleke kumaleko okusebenza. Umaleko womphezulu ngokwawo unemingxuma emihle kangangokuba irhasi ayinakuqukuqela kwii-electrode ukuya kwi-electrolyte, nokuba kuxinzelelo oluphezulu. Le electrode yenziwa yi-dispersion kunye ne-sintering elandelayo okanye i-hot pressing. Ukuvelisa i-electrodes ye-multilayer, izinto ezixutywe kakuhle zichithwa kwi-mold kunye ne-smoolated. Emva koko, ezinye izinto zisetyenziswa kwimigangatho emininzi kwaye uxinzelelo lusetyenziswa.
Ixesha lokuposa: Feb-27-2023