Cov pa roj carbon monoxide (CO) yog cov pa roj carbon monoxide, uas muaj kev phom sij rau tib neeg lub cev thiab ib puag ncig.Hauv ntau qhov kev lag luam tsim khoom thiab lub neej niaj hnub, tiam thiab emission ntawm CO yog inevitable.Yog li ntawd, nws yog ib qho tseem ceeb los tsim kom muaj txiaj ntsig zoo thiab muaj txiaj ntsig CO tshem tawm cov thev naus laus zis.Noble hlau catalysts yog ib chav kawm ntawm catalysts nrog siab catalytic kev ua si, selectivity thiab stability, uas yog dav siv nyob rau hauv CO tshem tawm thiab lwm yam teb.
Main hom thiab cov khoom ntawmua nomhlau catalysts
ua nomhlau catalysts mas muaj xws li platinum (Pt), palladium (Pd), Iridium (Ir), rhodium (Rh), kub (Au) thiab lwm yam hlau.Cov hlau no muaj cov qauv hluav taws xob tshwj xeeb thiab cov txheej txheem atomic uas tso cai rau lawv nthuav tawm cov khoom zoo hauv catalysts.Hauv CO tshem tawm, lubua nomhlau catalyst tuaj yeem ua rau CO rau cov pa oxygen (O2) los tsim cov pa roj carbon dioxide (CO2).Noble hlau catalyst muaj kev ua haujlwm siab catalytic, kev xaiv siab thiab kev ua haujlwm zoo los tiv thaiv tshuaj lom, thiab tuaj yeem tshem tawm CO ntawm qhov kub thiab txias.
Txoj kev npaj ntawmua nomhlau catalyst
Txoj kev npaj ntawmua nomhlau catalyst mas muaj xws li impregnation txoj kev, coprecipitation txoj kev, sol-gel txoj kev, thiab lwm yam. Txhua txoj kev muaj nws tus kheej zoo thiab tsis zoo nyob rau hauv cov nqe lus ntawm catalyst kev ua tau zoo, nqi thiab kev ua haujlwm.Txhawm rau txhim kho kev ua haujlwm ntawmua nomhlau catalysts thiab txo tus nqi, cov kws tshawb fawb kuj tau siv cov khoom siv thauj khoom, nano thiab alloying technologies.
Kev tshawb nrhiav kev nce qib ntawm kev siv cov hlau zoo hlau catalysts hauv CO tshem tawm
Kev tshawb fawb tseem ceeb tau ua tiav hauv daim ntawv thovua nomhlau catalysts hauv CO tshem tawm, xws li:
4.1 Automobile exhaust purification:ua nomhlau catalysts yog dav siv nyob rau hauv lub tsheb tso purifiers, uas muaj peev xwm tshem tawm cov pa phem xws li CO, hydrocarbon tebchaw (HC) thiab nitrogen oxides (NOx).Tsis tas li ntawd, cov kws tshawb fawb tseem tab tom tshawb nrhiav kev sib xyaw ua ke ntawmua nomhlau catalysts nrog rau lwm cov ntaub ntawv ua haujlwm los txhim kho kev ua haujlwm thiab kev ruaj ntseg ntawm lub tsheb purifiers.
4.2 Sab hauv huab cua purification: Daim ntawv thov ntawmua nomhlau catalysts nyob rau hauv tsev cua purifiers tau nyiam ntau thiab ntau xim, uas muaj peev xwm tshem tawm CO, formaldehyde, benzene thiab lwm yam teeb meem nyob rau hauv tsev.Cov kws tshawb fawb tseem tab tom tsim tshiabua nomhlau catalysts los txhim kho kev ua tau zoo, txo tus nqi thiab txo qhov loj ntawm cov cua purifiers hauv tsev.
4.3 Muaj flue gas kho:ua nomhlau catalysts muaj ntau yam ntawm daim ntawv thov kev cia siab nyob rau hauv lub tshav pob ntawm industrial flue gas kev kho mob, xws li tshuaj, roj av, hlau thiab lwm yam lag luam.Cov kws tshawb fawb tab tom txhim kho kom muaj txiaj ntsig thiab ruaj khovua nomhlau catalysts kom tau raws li cov kev xav tau ntawm kev sib txawv industrial flue gas kev kho mob.
4.4 Roj Cell:ua nomhlau catalysts ua lub luag haujlwm tseem ceeb hauv cov roj hlwb, catalyzing cov dej thiab hluav taws xob los ntawm hydrogen thiab oxygen.Cov kws tshawb fawb tab tom tshawb nrhiav kev tsim thiab kev ua kom zoo dua tshiabua nomhlau catalysts los txhim kho kev ua tau zoo thiab kav ntev ntawm cov roj hlwb.
Cov ntsiab lus
ua nomhlau catalysts muaj cov txiaj ntsig zoo hauv kev tshem tawm cov pa roj carbon monoxide, thiab tau ua cov kev tshawb fawb tseem ceeb hauv kev ua haujlwm ntawm lub tsheb tso pa roj purification, huab cua hauv tsev purification, industrial flue gas kho thiab roj hlwb.Txawm li cas los, tus nqi siab thiab scarcity ntawmua nomhlau catalysts tseem yog cov teeb meem loj rau lawv txoj kev loj hlob.Cov kev tshawb fawb yav tom ntej yuav tsum tau tsom mus rau cov txheej txheem synthesis optimization, kev txhim kho kev ua haujlwm, txo nqi thiab kev ruaj khov ntawmua nomhlau catalysts los txhawb kev siv dav ntawmua nomhlau catalysts hauv kev tshem tawm carbon monoxide.
Post lub sij hawm: Sep-08-2023