Roj cell yog ib yam khoom tsim hluav taws xob, uas hloov cov tshuaj hluav taws xob hauv cov roj rau hauv hluav taws xob los ntawm cov tshuaj tiv thaiv redox ntawm oxygen lossis lwm yam oxidants. Cov roj ntau tshaj plaws yog hydrogen, uas tuaj yeem nkag siab tias qhov rov qab cov tshuaj tiv thaiv dej electrolysis rau hydrogen thiab oxygen.
Tsis zoo li lub foob pob hluav taws, hydrogen roj cell tsis tsim lub zog kinetic los ntawm kev ua phem ntawm hydrogen thiab oxygen combustion, tab sis tso Gibbs dawb zog hauv hydrogen los ntawm catalytic ntaus ntawv. Nws txoj hauv kev ua haujlwm yog tias hydrogen yog decomposed rau hauv electrons thiab hydrogen ions (protons) los ntawm lub catalyst (feem ntau platinum) nyob rau hauv qhov zoo electrode ntawm ib tug roj cell. Protons ncav cuag qhov tsis zoo electrode los ntawm proton exchange membrane thiab hnov mob nrog oxygen los tsim dej thiab cua sov. Cov khoom siv hluav taws xob sib thooj ntws los ntawm qhov zoo electrode mus rau qhov tsis zoo electrode los ntawm sab nraud Circuit Court los tsim hluav taws xob hluav taws xob. Nws tsis muaj thermal efficiency bottleneck li ntawm 40% rau roj cav, thiab cov efficiency ntawm hydrogen roj cell tau yooj yim mus txog ntau tshaj 60%.
Raws li thaum ntxov li ob peb xyoos dhau los, hydrogen zog tau raug hu ua "qhov kawg daim ntawv" ntawm lub zog tshiab tsheb los ntawm kev tsim txiaj ntawm nws qhov zoo ntawm xoom muaj kuab paug, lub zog tauj dua tshiab, ceev hydrogenation, ntau yam thiab lwm yam. Txawm li cas los xij, txoj kev xav ntawm hydrogen roj cell yog qhov zoo tshaj plaws, tab sis kev lag luam kev lag luam yog rov qab tiag tiag. Ib qho kev sib tw loj tshaj plaws ntawm nws txoj kev nce qib yog kev tswj hwm tus nqi. Qhov no suav nrog tsis tsuas yog tus nqi ntawm lub tsheb nws tus kheej, tab sis kuj yog tus nqi ntawm hydrogen ntau lawm thiab khaws cia.
Txoj kev loj hlob ntawm hydrogen roj cell tsheb nyob ntawm kev tsim kho ntawm hydrogen roj infrastructure xws li hydrogen ntau lawm, hydrogen cia, hydrogen tsheb thauj mus los thiab hydrogenation. Tsis zoo li cov tsheb ciav hlau ntshiab, uas tuaj yeem them qeeb hauv tsev lossis hauv lub tuam txhab, cov tsheb hydrogen tsuas tuaj yeem them rau ntawm qhov chaw nres tsheb hydrogenation, yog li qhov kev thov rau lub chaw them nqi yog qhov ceev dua. Yog tsis muaj kev ua tiav hydrogenation network, kev txhim kho ntawm kev lag luam tsheb hydrogen yog tsis yooj yim sua.
Post lub sij hawm: Apr-02-2021