Taw qhia thiab siv Cerium Oxide
I. Khoom Muag Khoom
Cerium oxide (CeO₂)tseem hu ua cerium dioxide,yog ib qho oxide ntawm lub ntiaj teb tsis tshua muaj caij cerium, nrog rau daj daj mus rau dawb hmoov tsos. Raws li tus neeg sawv cev tseem ceeb ntawm cov tebchaw uas tsis tshua muaj hauv ntiaj teb, cerium oxide yog siv dav hauv iav polishing, tsheb purification, hluav taws xob ceramics, lub zog tshiab thiab lwm yam kev lag luam vim nws cov khoom tshwj xeeb thiab cov khoom catalytic. Nws cov ntsiab lus melting yog hais txog 2400 ℃, nws muaj tshuaj lom neeg ruaj khov, yog insoluble hauv dej, thiab tuaj yeem nyob ruaj khov hauv qhov kub thiab txias thiab muaj zog oxidizing ib puag ncig.
Nyob rau hauv industrial ntau lawm,cerium oxideFeem ntau yog muab rho tawm los ntawm cerium-muaj cov zaub mov (xws li fluorocarbon cerium ore thiab monazite) thiab tau los ntawm cov kua qaub leaching, extraction, nag lossis daus, calcination thiab lwm yam txheej txheem. Raws li qhov purity thiab particle loj, nws tuaj yeem muab faib ua qib polishing, qib catalytic, qib hluav taws xob thiab cov khoom siv nano-qib, ntawm cov khoom siv high-purity nano cerium oxide yog cov khoom siv tseem ceeb rau kev siv high-end.
II. Khoom nta
Kev ua haujlwm zoo polishing:Cerium oxidemuaj chemical mechanical polishing peev xwm, uas tuaj yeem tshem tawm cov iav deg tsis zoo thiab txhim kho qhov chaw tiav.
Lub peev xwm redox muaj zog: Kev hloov pauv hloov pauv ntawm Ce⁴⁺ thiab Ce³⁺ muab nws lub cim tshwj xeeb oxygen cia thiab tso tawm ua haujlwm, tshwj xeeb tshaj yog tsim rau cov tshuaj tiv thaiv catalytic.
Muaj zog tshuaj lom neeg ruaj khov: Nws tsis yooj yim rau hnov mob nrog feem ntau cov kua qaub thiab cov hauv paus, thiab tuaj yeem tswj tau qhov kev ua tau zoo hauv cov xwm txheej hnyav.
Kev kub siab ua haujlwm: Lub siab melting point thiab thermal stability ua rau nws haum rau cov txheej txheem kub thiab hluav taws xob ceramics.
Controllable particle loj: Cov khoom particle loj tuaj yeem hloov kho los ntawm micron mus rau nanometer kom tau raws li cov kev xav tau sib txawv.
III. Cov cheeb tsam tseem ceeb ntawm daim ntawv thov
1. iav thiab optical polishing
Cerium oxide polishing hmoov yog cov khoom siv tseem ceeb rau kev ua cov iav niaj hnub. Nws cov khoom siv tshuaj lom neeg tuaj yeem tshem tawm cov khawb me me thiab ua rau daim iav nyhuv. Feem ntau siv rau:
Polishing ntawm cov xov tooj ntawm tes thiab lub computer kov cov ntxaij vab tshaus;
Precision sib tsoo ntawm high-end optical lo ntsiab muag thiab lub koob yees duab lo ntsiab muag;
Kev kho deg ntawm LCD cov ntxaij vab tshaus thiab TV iav;
Precision siv lead ua thiab kho qhov muag iav khoom ua.
Piv nrog cov tsoos hlau oxide polishing cov ntaub ntawv, cerium oxide muaj qhov ceev polishing ceev, siab dua qhov ci ci, thiab lub neej ua haujlwm ntev.
2. Automotive tso zis catalyst
Cerium oxide yog ib qho tseem ceeb ntawm lub tsheb peb-txoj kev catalysts. Nws tuaj yeem khaws thiab tso tawm cov pa oxygen zoo, paub txog kev hloov pauv catalytic ntawm carbon monoxide (CO), nitrogen oxides (NOₓ) thiab hydrocarbons (HC), yog li txo cov pa roj carbon monoxide emissions thiab ua tau raws li cov qauv nruj zuj zus.
3. Tshiab zog thiab roj hlwb
Nano cerium oxide tuaj yeem txhim kho cov khoom siv hluav taws xob thiab ua haujlwm ntev ntawm cov roj teeb raws li cov khoom siv hluav taws xob lossis cov khoom sib txuas hauv cov khoom siv roj oxide (SOFC). Nyob rau tib lub sijhawm, cerium oxide kuj qhia tau hais tias kev ua tau zoo hauv kev ua haujlwm ntawm hydrogen catalytic decomposition thiab lithium-ion roj teeb ntxiv.
4. Electronic ceramics thiab iav additives
Raws li ib qho tseem ceeb raw khoom rau hluav taws xob ceramics, cerium oxide yuav siv tau los tsim capacitors, thermistor, optical filter cov ntaub ntawv, thiab lwm yam. Thaum ntxiv rau iav, nws muaj peev xwm ua si lub luag hauj lwm nyob rau hauv decolorization, transparency li, thiab UV tiv thaiv, thiab txhim kho lub durability thiab optical zog ntawm iav.
5. Cov khoom siv tshuaj pleev ib ce thiab kev tiv thaiv
Nano cerium oxide hais tuaj yeem nqus tau cov kab hluav taws xob ultraviolet thiab feem ntau siv rau hauv cov tshuaj pleev thaiv hnub thiab cov khoom tu tawv nqaij. Lawv muaj qhov zoo ntawm inorganic stability thiab tsis yooj yim absorbed los ntawm daim tawv nqaij. Nyob rau tib lub sijhawm, nws tau ntxiv rau cov txheej txheem kev lag luam txhawm rau txhim kho corrosion kuj thiab muaj peev xwm tiv thaiv kev laus.
6. Kev tswj hwm ib puag ncig thiab tshuaj lom neeg catalysis
Cerium oxide muaj cov ntawv thov tseem ceeb hauv kev lag luam pov tseg roj purification, dej phwj catalytic oxidation thiab lwm yam teb. Nws cov kev ua haujlwm siab catalytic ua rau nws siv dav hauv cov txheej txheem xws li roj av cracking thiab tshuaj synthesis.
IV. Txoj kev loj hlob
Nrog rau kev loj hlob sai ntawm lub zog tshiab, optics, kev tiv thaiv ib puag ncig thiab lwm yam kev lag luam, qhov kev thov raucerium oxidetxuas ntxiv mus. Cov lus qhia tseem ceeb ntawm kev txhim kho yav tom ntej muaj xws li:
Nano- thiab kev ua haujlwm siab: txhim kho thaj chaw tshwj xeeb thiab kev ua haujlwm ntawm cerium oxide los ntawm nanotechnology.
Ntsuab thiab ib puag ncig tus phooj ywg polishing cov ntaub ntawv: tsim cov kuab paug tsawg, siab rov qab polishing hmoov los txhim kho kev siv peev txheej.
Kev nthuav dav lub zog tshiab: Muaj kev lag luam dav dav hauv lub zog hydrogen, roj hlwb, thiab cov khoom siv hluav taws xob.
Kev siv cov khoom siv rov ua dua: Txhim kho lub ntiaj teb tsis tshua muaj rov qab los ntawm cov khib nyiab polishing hmoov thiab tso pa tawm kom txo tau cov peev txheej pov tseg.
V. Xaus
Vim nws txoj kev ua haujlwm polishing zoo heev, kev ua haujlwm catalytic thiab ruaj khov, cerium oxide tau dhau los ua cov khoom tseem ceeb rau kev ua iav, kev kho tsheb tsheb, hluav taws xob ceramics thiab kev lag luam tshiab zog. Nrog rau kev nce qib ntawm thev naus laus zis thiab kev loj hlob ntawm kev thov rau kev lag luam ntsuab, daim ntawv thov ntawm cerium oxide yuav nthuav dav ntxiv, thiab nws cov nqi lag luam thiab kev loj hlob yuav tsis txwv.