Tokisetso ea ts'ebetso e phahameng e tšehetsoeng ke li-catalysts tsa nano-khauta haholo-holo e nahana ka lintlha tse peli, e 'ngoe ke ho lokisoa ha khauta ea nano, e tiisang ts'ebetso e phahameng ea catalytic ka boholo bo nyane,' me e 'ngoe ke khetho ea mokhanni, e lokelang ho ba le sebaka se batlang se le seholo. sebaka le tshebetso e ntle.metsi a phahameng le tšebelisano e matla le li-nanoparticles tsa khauta tse tšehetsoeng 'me li qhalakanngoa haholo holim'a sephethephethe.

Tšusumetso ea motho ea tsamaisang ts'ebetso ea catalytic ea Au nanoparticles e bonahala haholo-holo sebakeng se itseng sa holim'a metsi, ho nosetsa ha mojari ka boeona le tekanyo ea ho sebelisana pakeng tsa mopalami le li-nanopowder tsa khauta.Mopalami ea nang le SSA e kholo ke ntho e hlokahalang bakeng sa ho hasana ho hoholo ha likaroloana tsa khauta.Ho koloba ha sepalangoang ho etsa qeto ea hore na catalyst ea khauta e tla kopana ho ba likaroloana tse kholo tsa khauta nakong ea ho bala, kahoo e fokotsa ts'ebetso ea eona ea matla.Ntle le moo, matla a tšebelisano lipakeng tsa mopalami le li-nanopowders tsa Au e boetse ke ntlha ea bohlokoa e amang ts'ebetso ea catalytic.Ha matla a ho sebelisana a le matla pakeng tsa likaroloana tsa khauta le mojari, a phahamisa ts'ebetso ea catalytic ea catalyst ea khauta.

Hona joale, boholo ba li-catalyst tsa nano Au tse sebetsang haholo li tšehetsoa.Ho ba teng ha ts'ehetso ha ho thuse feela botsitso ba mefuta ea khauta e sebetsang, empa hape e phetha karolo ea bohlokoa ho khothalletsa mosebetsi oa motsoako oohle ka lebaka la ho sebelisana pakeng tsa tšehetso le nanoparticles ea khauta.

Palo e kholo ea liphetho tsa lipatlisiso li bonts'a hore nano-khauta e na le bokhoni ba ho etsa hore ho be le liphetoho tse fapaneng tsa lik'hemik'hale, 'me ho lebeletsoe hore e nke sebaka sa lisebelisoa tsa tšepe tsa bohlokoa tse teng kapa tse seng li le teng tse kang Pd le Pt masimong a motsoako o motle oa lik'hemik'hale le kalafo ea tikoloho. , e bonts'a litebello tse pharaletseng tsa ts'ebeliso:

1. Kgetho ya Oxidation

Khetho ea oxidation ea lino tse tahang le aldehydes, epoxidation ea olefin, khetho ea oxidation ea hydrocarbons, synthesis ea H2O2.

2. Hydrogenation reaction

Hydrogenation ea olefin;khetho ea hydrogenation ea aldehydes e sa tsitsang le li-ketone;selective hydrogenation ea metsoako ea nitrobenzene, data e bontša hore Au/SiO2 catalyst e nang le nano-gold loading ea 1% e ka lemoha catalysis e sebetsang ea high-purity halogenated amines hydrogenation synthesis e fana ka monyetla o mocha oa ho rarolla bothata ba dehalogenation ka catalytic. hydrogenolysis ts'ebetsong ea hona joale ea indasteri.

Li-catalyst tsa Nano Au li sebelisoa haholo ho li-biosensors, li-catalyst tse sebetsang hantle haholo, 'me khauta e na le botsitso bo botle ba lik'hemik'hale.Ke eona e tsitsitseng ka ho fetesisa har'a likarolo tsa sehlopha sa VIII, empa li-nanoparticles tsa khauta li bonts'a ts'ebetso e ntle ea matla ka lebaka la litlamorao tse nyane, li-nonlinear optics, jj.

Ha ho ts'oaroa karabelo e ts'oanang, nano gold catalyst e na le mocheso o tlase oa karabelo le khetho e phahameng ho feta li-catalyst tsa tšepe tse akaretsang, mme ts'ebetso ea eona ea mocheso o tlase e phahame.Ts'ebetso e thusang mocheso oa karabelo ea 200 ° C e phahame haholo ho feta ea khoebo ea CuO-ZnO-Al2O3 catalyst.

1. CO oxidation reaction

2. Boitšoaro bo fokolang ba mocheso oa metsi a khase

3. Liquid-phase hydrogenation reaction

4. Litla-morao tsa oxidation ea mokelikeli, ho kenyelletsa le ethylene glycol oxidation ho hlahisa oxalic acid, le ho khetha oxidation ea tsoekere.

 


Nako ea poso: Jun-17-2022

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