Nkwadebe nke elu-eme ihe na-akwado nano-gold catalysts tumadi atụle akụkụ abụọ, otu bụ nkwadebe nke nano gold, nke ana achi achi elu catalytic ọrụ na obere size, na ndị ọzọ bụ nhọrọ nke ụgbọelu, nke kwesịrị inwe a dịtụ nnukwu kpọmkwem elu. mpaghara na arụmọrụ dị mma. elu wettability na ike mmekọrịta na akwado gold nanoparticles na ha na-ukwuu agbasasị n'elu nke ụgbọelu.

Mmetụta nke onye na-ebu ya na ọrụ catalytic nke Au nanoparticles na-egosipụtakarị na mpaghara elu dị iche iche, wettability nke onye na-ebu ya n'onwe ya na ogo mmekọrịta dị n'etiti ndị na-ebu na ndị na-ebu ọla edo. Onye na-ebu ya nwere nnukwu SSA bụ ihe achọrọ maka mgbasawanye nke ihe ọla edo dị elu. Mmiri mmiri nke onye na-ebu ya na-ekpebi ma ihe na-emepụta ọla edo ga-agbakọta n'ime nnukwu ọla edo n'oge usoro calcination, si otú ahụ belata ọrụ catalytic ya. Na mgbakwunye, ike mmekọrịta dị n'etiti onye na-ebu ya na Au nanopowders bụkwa isi ihe na-emetụta ọrụ catalytic. Ka ike mmekọrịta dị n'etiti ụmụ irighiri ọla edo na onye na-ebu ya, ka ọrụ catalytic nke ọla edo na-eme ka ọ dịkwuo elu.

Ugbu a, a na-akwado ọtụtụ ihe nano Au na-arụsi ọrụ ike. Ịdị adị nke nkwado ahụ abụghị nanị na-eme ka nkwụsi ike nke ụdị ọla edo na-arụ ọrụ, ma na-arụkwa ọrụ dị mkpa n'ịkwalite ọrụ nke ihe niile na-akpata n'ihi mmekọrịta dị n'etiti nkwado na ọla edo nanoparticles.

Ọnụ ọgụgụ dị ukwuu nke nsonaazụ nyocha na-egosi na nano-gold nwere ikike ịmegharị mmeghachi omume kemịkalụ dịgasị iche iche, a na-atụkwa anya na ọ ga-eji dochie ihe ndị na-eme ka ígwè dị oké ọnụ ahịa dị ugbu a dị ka Pd na Pt n'ọhịa nke nchịkọta kemịkal dị mma na ọgwụgwọ gburugburu ebe obibi. , na-egosi nnukwu atụmanya ngwa:

1. Nhọrọ Oxidation

Nhọrọ oxidation nke alcohols na aldehydes, epioxidation nke olefins, nhọrọ oxidation nke hydrocarbons, njikọ nke H2O2.

2. Hydrogenation mmeghachi omume

Hydrogenation nke olefins; hydrogenation nhọrọ nke unsaturated aldehydes na ketones; nhọrọ hydrogenation nke ogige nitrobenzene, data na-egosi na Au / SiO2 catalyst na nano-gold loading nke 1% nwere ike ịghọta nke ọma catalysis nke elu-ọcha halogenated aromatic amines hydrogenation njikọ na-enye ohere ọhụrụ iji dozie nsogbu nke dehalogenation site catalytic. hydrogenolysis na usoro mmepụta ihe ugbu a.

A na-eji ihe na-eme ka Nano Au eme ihe na biosensors, ihe na-arụ ọrụ dị elu, na ọla edo nwere nkwụsi ike kemịkalụ dị mma. Ọ bụ ihe kacha kwụsie ike n'etiti ihe ndị otu VIII, mana ọla edo nanoparticles na-egosi ọrụ catalytic dị mma n'ihi obere mmetụta nha, ngwa anya na-adịghị adị, wdg.

N'ịkwalite mmeghachi omume ndị yiri ya, nano gold catalyst nwere okpomọkụ mmeghachi omume dị ala yana nhọrọ dị elu karịa ihe ndị na-eme ka igwe mmadụ n'ozuzu ya, yana ọrụ catalytic dị ala dị ala dị elu. Ọrụ catalytic na okpomọkụ mmeghachi omume nke 200 Celsius C dị elu karịa nke ngwa ahịa CuO-ZnO-Al2O3.

1. CO oxidation mmeghachi omume

2. Obere okpomọkụ mmiri gas mgbanwe mmeghachi omume

3. Mmeghachi omume hydrogenation nke mmiri mmiri

4. Mmeghachi omume oxidation nke mmiri-phase, gụnyere ethylene glycol oxidation iji mepụta oxalic acid, na nhọrọ oxidation nke glucose.

 


Oge nzipu: Jun-17-2022

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