Ntawm tam sim no, cov ntaub ntawv hlau uas muaj nuj nqis siv nyob rau yuav luag txhua qhov kev lag luam, thiab cov hlau uas muaj txiaj ntsig feem ntau yog feem ntau ua rau cov khoom lag luam ua tiav. Qhov thiaj li hu ua kev sib sib zog nqus ntawm cov khoom siv uas muaj cov muaj nqis yog hais txog cov txheej txheem ntawm cov khoom siv ntawm lub cev lossis cov tshuaj sib xyaw los ntawm cov txheej txheem kev ua kom muaj txiaj ntsig zoo dua cov khoom lag luam loj. Tam sim no los ntawm kev sib xyaw nrog Nanotechnology, qhov sib zog ntawm cov khoom lag luam hlau zoo nkauj tau nthuav dav, thiab ntau cov khoom lag luam hlau ua kom zoo dua qub tseem tau pom.

Nano muaj nqis hlau cov ntaub ntawv muaj ntau hom neeg hlau cov hlau yooj yim thiab cov khoom siv nanopowder, mebe hlau macromolecular nanomolaters nogromaterials nogromaterials noge hlau cov ntaub ntawv. Ntawm lawv, lub ntsiab lus tseem ceeb thiab cov khoom sib xyaw ua ke Noble hmoov ntaub ntawv tuaj yeem faib ua ob hom: txhawb nqa thiab tsis muaj txiaj ntsig zoo tshaj plaws cov hlau nanomaterials hauv kev lag luam.

1. Nanopowder cov ntaub ntawv ntawm cov hlau noble thiab cov tebchaw

1.1. Tsis txhawb hmoov

Muaj ob hom nanopowders ntawm noble hlau xws li nyiaj (AG), kub (PT), thiab nanoparticles ntawm noble hlau tebchaw xws li nyiaj oxide. Vim yog qhov muaj zog sib cuam tshuam lub zog ntawm nanoparticles, nws yooj yim rau agglomerate ntawm nanoparticles. Feem ntau, ib qho kev tiv thaiv muaj qee tus neeg tiv thaiv (nrog cov nyhuv tiv thaiv) yog siv los ua kom cov khoom ua haujlwm lossis cov khoom npaj tau npaj.

Daim Ntawv Thov:

Tam sim no, qhov tsis txhawb nqa cov hlau nanoparticles uas tau muaj thiab thov hauv kev lag luam nano nyiaj hmoov, nano platinum hmoov thiab nano nyiaj oxide. Nano kub particle raws li xim xim tau ntev tau siv nyob rau hauv venetian iav thiab cov iav, thiab cov ntaub nyias nyias muaj siv rau kev kho cov neeg mob. Ntawm tam sim no, Nano nyiaj hmoov tuaj yeem hloov cov hmoov roj roj teeb ultra nyob rau hauv kev ua yeeb yam muab tshuaj txhuam, uas tuaj yeem txo cov nyiaj thiab txo cov nqi; Thaum nano hlau cov lus yog siv los ua cov xim hauv cov xim tha xim, qhov tshwj xeeb ci txheej ua rau nws haum rau cov tsheb khoom kim heev thiab lwm yam kev dai kom zoo. Nws muaj cov ntawv thov loj loj muaj peev xwm.

Tsis tas li ntawd, cov slurry ua los ntawm cov khoom muaj nqis hlau muaj cov khoom lag luam zoo dua thiab tuaj yeem siv los tsim cov khoom lag luam tshiab ntawm cov khoom lag luam hluav taws xob siab. Nyob rau tib lub sijhawm, cov hlau zoo nkauj hlau nws tus kheej kuj tseem tuaj yeem siv tau hauv cov tshuab hluav taws xob, xws li hluav taws xob hlau kev lag luam thiab cov khoom xuas tes ua plating.

1.2. Txhawb nqa hmoov

Cov ntaub ntawv nano cov ntaub ntawv ntawm noble hlau feem ntau xa mus rau cov composites tau los ntawm kev thau khoom nanoparticles thiab qee tus neeg kuj tau cais lawv raws li noble hlau composites. Nws muaj ob qhov txiaj ntsig loj:

① Nano hmoov cov ntaub ntawv ntawm cov khoom tawg thiab tsis sib xws ntawm cov khoom sib txuas thiab cov tebchaw tuaj yeem tiv thaiv lub agglomeration ntawm noble hlau nanoparticles;

②th Cov txheej txheem ntau lawm yog yooj yim dua li cov tsis muaj kev pab, thiab cov cuab yeej ntsuas kev ua tau yooj yim los tswj.

The supported noble metal powders that have been produced and used in industry include Ag, Au, Pt, Pd, Rh and alloy nanoparticles formed between them and some base metals.

Daim Ntawv Thov:

Tam sim no txhawb nqa Noble Hlau Nanomaterials yog siv los ua catalysts. Vim tias qhov loj me me thiab thaj chaw tshwj xeeb thaj tsam ntawm cov mats atoms, kom cov chaw ua haujlwm ntawm cov noms hlau yog ntau dua, thiab lawv muaj cov xwm txheej yooj yim li catalysts. Ib qho ntxiv, lub cim tshwj xeeb ntawm cov hlau ua rau lawv muaj cov kev ua haujlwm sib txawv, catalytic kev ua si thiab kev tsim dua tshiab tom qab tau ua rau hauv catalysts.

Tam sim no, ntau yam ntawm kev ua haujlwm siab nano-nplai cov khoom siv hlau ua khoom siv rau kev lag luam tshuaj synthesis tau tsim. Piv txwv li, colloidal pt catalyst txaus siab rau ntawm Zeolite-1 yog siv los hloov alkanes, colloidal ru tau rau n-butane hydrogenolysis thiab isomerization. Cov hlau zoo nkauj (tshwj xeeb tshaj yog PT) Nanomaterials ua cov catalysts tseem ua rau cov khoom lag luam ntawm cov roj ntsha, nano-nplai pt, tsis yog catalytic ua tau zoo. Nws tau txhim kho, thiab cov coats cov khoom muaj peev xwm tuaj yeem txo, yog li tias tus nqi npaj yuav tau txo qis heev.

Ntxiv rau, nano-nplai cov hlau uas muaj cov muaj nqis yuav tseem ua lub luag haujlwm tseem ceeb hauv kev txhim kho hydrogen zog. Kev siv ntawm nano-nplai noble hlau catalysts los muab cov dej physogen los ua hydrogen yog ib qho kev taw qhia ntawm kev txhim kho ntawm noble hlau nanomaterials. Muaj ntau txoj hauv kev siv cov hlau noble nanomaterials mus rau hydrogen ntau lawm. Piv txwv li, colloidal ir yog ib tug nquag catalyst rau kev txo qis rau hydrogen ntau lawm.

2. Xav Txog Tus Neeg Muaj Peev Xwm Ntawm Noble

Siv cov tshuaj Schiffrin, AU, AG thiab lawv cov alloys tiv thaiv nrog Alkyl Thiol tuaj yeem npaj, ib qho loj ntawm pawg sib tw yog ib qho thiab muaj peev xwm ua tiav "kev coj noj coj ua" molecular ". Qhov xwm txheej ruaj khov pub rau lawv kom tau ua kom dhau thiab precipitated zoo li molglomeration, thiab contupling thiab daim ntawv muaju nrog cov chav nyob qub raws li cov txheej txheem txheej txheem. Yog li ntawd, cov pawg Atomic xws li hu ua poj niam cov monolayer tiv thaiv cluster molecules (MPC).

Daim ntawv thov: Nws tau pom tias kub nanoparticles nrog qhov loj ntawm 3-40 nm tuaj yeem siv rau kev daws teeb meem sab hauv, uas yog qhov tseem ceeb ntawm kev tshawb fawb ntawm biology.

3. Muaj nuj nqis hlau zaj duab xis cov ntaub ntawv

Cov khoom muaj nqis muaj cov tshuaj lom neeg muaj zog ruaj khov thiab tsis yooj yim los ua kom muaj kev tawm tsam nrog ib puag ncig ib puag ncig, thiab feem ntau siv los ua cov xim av thiab cov yeeb yaj kiab. Ntxiv nrog rau cov txheej txheem kho kom zoo nkauj, nyob rau hauv cov iav tsis ntev los no tau tshwm sim los ntawm cov ntaub thaiv phab ntsa kom muaj kev kub ntxhov thiab txo kev siv hluav taws xob. Piv txwv li, Royal Bank tuam tsev hauv Toronto tau teeb tsa cov iav zoo heev, siv 77.77 kg ntawm kub.

Hongwu Nano yog cov kws tshaj lij kev lag luam ntawm nano muaj nqis hlau lo lus, cov pob zeb hlau muaj txiaj ntsig, lub pob zeb zoo nkauj cov khoom siv uas muaj cov khoom muaj nqis thiab lawv cov kev faib tawm hauv cov pob. Txais tos tiv toj peb rau cov ntaub ntawv ntxiv!