I-Fuel cell iwuhlobo lwedivayisi ekhiqiza amandla, eguqula amandla amakhemikhali kuphethiloli abe amandla kagesi ngokusabela kwe-redox komoyampilo noma amanye ama-oxidants. Uphethiloli ovame kakhulu i-hydrogen, engaqondwa njengokusabela okuphambene kwe-electrolysis yamanzi ku-hydrogen nomoya-mpilo.
Ngokungafani ne-rocket, i-hydrogen fuel cell ayikhiqizi amandla e-kinetic ngokusebenzisa ukusabela okunobudlova kwe-hydrogen nomoya-mpilo, kodwa ikhulula amandla amahhala e-Gibbs ku-hydrogen ngokusebenzisa idivayisi ye-catalytic. Umgomo wayo wokusebenza ukuthi i-hydrogen ibola ibe ama-electron nama-hydrogen ions (ama-proton) ngokusebenzisa i-catalyst (imvamisa iplatinum) ku-electrode eqondile ye-fuel cell. Ama-protons afinyelela ku-electrode engemihle ngokusebenzisa ulwelwesi lokushintshana kwe-proton futhi asabelane nomoya-mpilo ukuze akhe amanzi nokushisa. Ama-electron ahambisanayo ageleza esuka ku-electrode eyakhayo aye ku-electrode engemihle ngomjikelezo wangaphandle ukuze akhiqize amandla kagesi. Ayinawo amandla okushisa acishe abe ngu-40% enjini kaphethiloli, kanti ukusebenza kahle kwe-hydrogen fuel cell kungafinyelela kalula ngaphezu kuka-60%.
Eminyakeni embalwa edlule, amandla e-hydrogen ayaziwa ngokuthi "ifomu lokugcina" lezimoto zamandla amasha ngenxa yezinzuzo zayo zokungcoliswa kwe-zero, amandla avuselelekayo, i-hydrogenation esheshayo, ububanzi obugcwele nokunye. Kodwa-ke, ithiyori yezobuchwepheshe ye-hydrogen fuel cell iphelele, kodwa inqubekelaphambili yezimboni ihlehle kakhulu. Enye yezinselelo ezinkulu zokunyuswa kwayo ukulawula izindleko. Lokhu akubandakanyi kuphela izindleko zemoto ngokwayo, kodwa futhi nezindleko zokukhiqiza nokugcinwa kwe-hydrogen.
Ukuthuthukiswa kwezimoto ze-hydrogen fuel cell kuncike ekwakhiweni kwengqalasizinda yamafutha e-hydrogen njengokukhiqizwa kwe-hydrogen, ukugcinwa kwe-hydrogen, ukuthuthwa kwe-hydrogen kanye ne-hydrogenation. Ngokungafani nama-tram ahlanzekile, angashajwa kancane kancane ekhaya noma enkampanini, izimoto ze-hydrogen zingashajwa kuphela esiteshini se-hydrogenation, ngakho isidingo sesiteshi sokushaja siphuthuma kakhulu. Ngaphandle kwenethiwekhi ephelele ye-hydrogenation, ukuthuthukiswa kwemboni yezimoto ze-hydrogen akunakwenzeka.
Isikhathi sokuthumela: Apr-02-2021