Kev npaj ntawm kev ua haujlwm siab txhawb nqa nano-kub catalysts feem ntau suav txog ob yam, ib qho yog kev npaj ntawm nano kub, uas ua kom muaj kev ua haujlwm siab catalytic nrog me me, thiab lwm qhov yog xaiv cov cab kuj, uas yuav tsum muaj qhov tshwj xeeb loj. thaj chaw thiab kev ua haujlwm zoo.siab wettability thiab muaj zog sib cuam tshuam nrog cov kev txhawb nqa kub nanoparticles thiab lawv tau tawg heev nyob rau saum npoo ntawm cov cab kuj.

Kev cuam tshuam ntawm cov cab kuj ntawm cov kev ua haujlwm catalytic ntawm Au nanoparticles feem ntau yog tshwm sim hauv thaj chaw tshwj xeeb, wettability ntawm cov cab kuj nws tus kheej thiab qib ntawm kev cuam tshuam ntawm cov cab kuj thiab cov nanopowders kub.Ib tus neeg nqa khoom nrog SSA loj yog qhov yuav tsum tau ua ua ntej rau kev tawg ntawm cov khoom kub.Lub wettability ntawm tus cab kuj txiav txim seb lub kub catalyst yuav aggregate mus rau hauv loj kub hais thaum lub sij hawm calcination txheej txheem, yog li txo nws cov kev ua catalytic.Tsis tas li ntawd, kev sib cuam tshuam lub zog ntawm tus neeg nqa khoom thiab Au nanopowders kuj yog qhov tseem ceeb cuam tshuam rau kev ua haujlwm catalytic.Lub zog sib cuam tshuam ntawm cov khoom kub thiab cov cab kuj, qhov siab dua qhov kev ua haujlwm catalytic ntawm kub catalyst.

Tam sim no, feem ntau ntawm cov nquag nquag nano Au catalysts tau txais kev txhawb nqa.Lub hav zoov ntawm kev txhawb nqa tsis yog tsuas yog ua rau muaj kev ruaj ntseg ntawm cov tsiaj kub kub, tab sis kuj ua lub luag haujlwm tseem ceeb hauv kev txhawb nqa kev ua haujlwm ntawm tag nrho cov catalyst vim muaj kev sib cuam tshuam ntawm kev txhawb nqa thiab kub nanoparticles.

Ntau cov txiaj ntsig kev tshawb fawb pom tau tias nano-kub muaj peev xwm ua kom muaj ntau yam tshuaj lom neeg, thiab xav kom tag nrho lossis ib nrab hloov cov khoom siv hlau uas muaj nuj nqis xws li Pd thiab Pt hauv thaj chaw ntawm cov tshuaj zoo synthesis thiab kev kho ib puag ncig. , uas qhia dav daim ntawv thov kev cia siab:

1. Xaiv oxidation

Xaiv oxidation ntawm cawv thiab aldehydes, epoxidation ntawm olefins, xaiv oxidation ntawm hydrocarbons, synthesis ntawm H2O2.

2. Hydrogenation cov tshuaj tiv thaiv

Hydrogenation ntawm olefins;xaiv hydrogenation ntawm unsaturated aldehydes thiab ketones;xaiv hydrogenation ntawm nitrobenzene tebchaw, cov ntaub ntawv qhia tau hais tias cov Au/SiO2 catalyst nrog ib tug nano-kub loading ntawm 1% tuaj yeem paub qhov ua tau zoo catalysis ntawm high-purity halogenated aromatic amines hydrogenation synthesis muab ib tug tshiab tau los daws cov teeb meem ntawm dehalogenation los ntawm catalytic. hydrogenolysis nyob rau hauv cov txheej txheem kev lag luam tam sim no.

Nano Au catalysts yog dav siv hauv biosensors, high-efficiency catalysts, thiab kub muaj tshuaj stability zoo.Nws yog qhov ruaj khov tshaj plaws ntawm pawg VIII cov ntsiab lus, tab sis cov nanoparticles kub qhia cov kev ua haujlwm catalytic zoo heev vim muaj qhov cuam tshuam me me, tsis muaj kab hluav taws xob, thiab lwm yam.

Hauv catalyzing zoo sib xws, nano kub catalyst muaj qis cov tshuaj tiv thaiv kub thiab siab dua selectivity tshaj cov hlau catalysts, thiab nws cov low-temperature catalyst muaj siab.Kev ua haujlwm catalytic ntawm cov tshuaj tiv thaiv kub ntawm 200 ° C yog ntau dua li cov khoom lag luam CuO-ZnO-Al2O3 catalyst.

1. CO oxidation cov tshuaj tiv thaiv

2. Tsis tshua muaj dej kub hloov pauv cov tshuaj tiv thaiv

3. Ua kua-theem hydrogenation cov tshuaj tiv thaiv

4. Ua kua-theem oxidation cov tshuaj tiv thaiv, suav nrog ethylene glycol oxidation los tsim oxalic acid, thiab xaiv oxidation ntawm qabzib.