Cov electrolyte yog ntshiab phosphoric aciduas yog cov khoom ntawm chav tsev kub tab sis melts ntawm 42 ° C thiab ruaj khov hauv cov kua dej kom siab tshaj 200 ° C. Nws yog ib tug neeg xyuas pib proton, nrog ib tug kuj tsis tshua muaj tag nrho conductivity.
Nyob rau hauv qhov twg ntawm cov phosphoric acid hauv qab no yog siv los ua electrolyte?
Raws li lub npe qhia, PAFCs siv phosphoric acid (H3PO4) hauv daim ntawv siab heev (> 95%) raws li nws cov electrolyte thiab porous carbon electrodes muaj cov platinum catalyst (Fig. 5.4). CO2 muaj huab cua yog siv los ua cov oxidant thiab ntshiab hydrogen los yog cov pa uas muaj hydrogen-nplua nuj ua cov roj tseem ceeb rau kev tsim hluav taws xob [1].
Yuav ua li cas hom electro catalyst siv nyob rau hauv phosphoric acid roj cell?
Phosphoric acid roj hlwb (PAFCs) siv cov kua phosphoric acid ua cov electrolyte-cov kua qaub yog muaj nyob rau hauv Teflon-bonded silicon carbide matrix-thiab porous carbon electrodes uas muaj a platinum catalystCov tshuaj tiv thaiv hluav taws xob uas tshwm sim hauv lub xov tooj ntawm tes tau qhia hauv daim duab mus rau sab xis.
Dab tsi yog acidic electrolytes?
Cov khoom uas muab ions thaum yaj hauv dej hu ua electrolytes. Lawv tuaj yeem muab faib ua cov kua qaub, hauv paus, thiab ntsev, vim lawv txhua tus muab ions thaum yaj hauv dej. Cov kev daws teeb meem no ua hluav taws xob vim kev txav mus los ntawm qhov zoo thiab tsis zoo ions, uas yog hu ua cations thiab anions feem.
phosphoric acid roj cell ua haujlwm li cas?
Phosphoric acid roj hlwb (PAFC) ua haujlwm ntawm qhov kub ntawm 150 txog 200 C (kwv yees li 300 txog 400 degrees F). Raws li lub npe qhia, PAFCs siv phosphoric acid ua cov electrolyteZoo them hydrogen ions migrate los ntawm electrolyte los ntawm anode mus rau cathode.
