Puas yog vanadium oxide yog ib qho catalyst heterogeneous?
Puas yog vanadium oxide yog ib qho catalyst heterogeneous?

Video: Puas yog vanadium oxide yog ib qho catalyst heterogeneous?

Video: Puas yog vanadium oxide yog ib qho catalyst heterogeneous?
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Cov vanadium (V) oxide yog ib heterogeneous catalyst vim nws yog nyob rau hauv cov khoom theem thiab cov reactants yog tag nrho cov gaseous. Cov reactants yog adsorbed rau ntawm qhov chaw catalyst (uas yog chemically hloov los ntawm tus txheej txheem) tab sis txhua lub sij hawm lub catalyst tseem tshuav ib feem ntawm cov khoom nto.

Hais txog qhov no, dab tsi yog homogeneous thiab heterogeneous catalysts?

Homogeneous catalysts yog cov uas muaj nyob rau hauv tib theem (gas los yog kua) raws li cov reactants, thaum heterogeneous catalysts tsis nyob rau hauv tib theem li cov reactants. Feem ntau, heterogeneous catalysis suav nrog kev siv cov khoom khov catalysts muab tso rau hauv cov tshuaj tiv thaiv ua kua.

Ib sab saum toj no, uas yog ib qho piv txwv ntawm heterogeneous catalyst? Heterogeneous catalysts yog catalysts uas nyob rau hauv ib theem txawv dua li cov reactants. Rau piv txwv , cov catalyst tej zaum yuav nyob rau hauv cov khoom theem thaum cov reactants nyob rau hauv cov kua los yog roj theem. Ib piv txwv ntawm heterogeneous catalyst yog cov catalytic converter nyob rau hauv roj av los yog diesel-fueled tsheb.

Xav txog qhov no, vanadium oxide ua haujlwm li cas?

Vanadium (V) oxide (V2O5) yog siv los ua a catalyst rau cov oxidation ntawm sulfur dioxide rau sulfur trioxide. Nws muaj peev xwm catalyze cov tshuaj tiv thaiv no vim nws tso pa oxygen (O2) thaum cua sov.

Puas yog cov enzymes homogeneous lossis heterogeneous catalysts?

Heterogeneous catalysis : Catalyst thiab cov reactants nyob rau hauv lub cev sib txawv theem. Enzymes nyiam ua homogeneous catalysts vim hais tias lawv feem ntau nyob rau tib theem li biomolecule nws reacts nrog, kom ceev lub decomposition ntawm ib tug biomolecule.

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