Uyini umgomo we-hydrogen fuel cell car?

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.

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Isikhathi sokuthumela: Apr-02-2021
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