Isici se-athomu ye-membrane cathode ukukhangisa ungqimba oluncane lwenye insimbi ebusweni bensimbi eyodwa, eshajwa kahle kusisekelo sensimbi.Lokhu kwakha ungqimba oluphindwe kabili olunamashaji amahle ngaphandle, futhi inkambu kagesi yalesi singqimba esiphindwe kabili ingasheshisa ukunyakaza kwama-electron ngaphakathi kwensimbi eyisisekelo ukuya phezulu, ngaleyo ndlela yehlise umsebenzi wokuphunyuka kwe-electron yensimbi eyisisekelo futhi ikhulise amandla ayo okukhipha ama-electron. izikhathi eziningi.Le ndawo ibizwa ngokuthi i-activation surface.Izinto eziyinhloko ezisetshenziswa njengezinsimbi ze-matrix ziyii-tungsten, i-molybdenum, futhii-nickel.
Indlela yokwakheka kwendawo ecushiwe ngokuvamile i-powder metallurgy.Engeza inani elithile le-oxide yenye insimbi ene-electronegativity ephansi kunesisekelo sensimbi kunsimbi eyisisekelo, bese ulenza libe yi-cathode ngenqubo ethile yokucubungula.Uma le cathode ishiswa ngaphansi kwe-vacuum kanye nokushisa okuphezulu, i-oxide yensimbi iyancipha ngesisekelo sensimbi ukuze ibe insimbi.Ngesikhathi esifanayo, ama-athomu ensimbi acushiwe angaphezulu ancipha ngokushesha ayahwamuka lapho izinga lokushisa liphezulu, kuyilapho ama-athomu ensimbi acushiwe ngaphakathi eqhubeka esakazekela phezulu ngemingcele yokusanhlamvu yesisekelo sensimbi ukuze agcwalise.
Isikhathi sokuthumela: Oct-12-2023