Kawm txog synthesis thiab kev hloov khoCerium oxide nanomaterials
Cov synthesis ntawmceria nanomaterialsXws li nag lossis nag lossis nag lossis nag lossis nag lossis nag lossis daus, hydrothermitation, hydrustion synthesis, solo lotion thiab pyrolysis, ntawm cov ntsiab lus tseem ceeb thiab dej nag thiab hydrothermal. Cov qauv siv hydrothermal yog suav tias yog qhov yooj yim tshaj plaws, feem ntau muaj kev lag luam, thiab cov qauv ntxiv. Qhov kev sib tw tseem ceeb ntawm hydrothermal txoj kev yog los tswj cov nanoscale morphology, uas yuav tsum tau ceev faj kom tswj hwm nws cov yam ntxwv.
Kev hloov kho ntawmlus ceriatuaj yeem txhim kho los ntawm ob peb txoj kev: (1) Doping lwm cov hlau ions nrog tus nqi qis dua lossis qhov ntau me me hauv kev ua siab tawv. Txoj kev no tsis tuaj yeem txhim kho cov kev ua tau zoo ntawm cov hlau oxides cuam tshuam, tab sis kuj ua cov ntaub ntawv ruaj khov tshiab nrog cov tshuaj tshiab thiab tshuaj lom neeg. (2) Disperse ceria lossis nws doped analogues on rau cov khoom lag luam tsim kom haum, xws li ua kom cov pa roj carbon, graphene, thiab lwm yam.Cerium oxidetseem tuaj yeem ua tus nqa khoom rau dispersing hlau xws li kub, platinum, thiab palladium. Kev hloov kho ntawm cerium dioxide raws cov ntaub ntawv tsuas yog siv cov khoom siv hlau, tsis tshua muaj cov hlau me, thiab cov hlau me, uas muaj cov haujlwm zoo dua thiab ua kom muaj zog zoo dua qub.
Daim ntawv thov ntawmCerium oxidethiab sib xyaw ua ke catalysts
1, daim ntawv thov ntawm cov qauv morphisies sib txawv ntawm Ceria
Laura li Laura li alura li al. qhia txog kev txiav txim siab ntawm peb hom ceria morphology cov duab, uas cuam tshuam qhov cuam tshuam ntawm alkali concentration thiab hydrothermal kev kho kom sov rau qhov kawgTus kab khiavnanostructure morphology. Cov txiaj ntsig tau qhia tias cov kev ua haujlwm catalya feem cuam tshuam ncaj qha cuam tshuam nrog CE3 + / CE4 + piv thiab nteg cov pa oxygen concancations. Wei li al. synthesized peb pt /Tus kab khiavcatalysts nrog cov cab kuj sib txawv morphologies (Qws zoo li (Tus kab khiav-R), cubic (Tus kab khiav-C), thiab octahedral (Tus kab khiav-O), uas yog tshwj xeeb rau cov khoom siv tsawg catalytic oxidation ntawm C2h4. Bian li al. Npaj ib qho ntawmCEO2 Nanomaterialsnrog pas nrig-puab, cubic, granular, thiab posthentral morphology, thiab pom tias catalysts thauj musCEO2 nanoparticles(5ni / nps) ua pov thawj ntau dua catalytic kev ua ub no thiab muaj zog zoo dua li catalysts nrog lwm cov ntawv ntawmTus kab khiavTxhawb nqa.
2.catalytictic demtradation ntawm cov pa phem hauv dej
Cerium oxideTau raug lees paub tias yog ib qho zoo ozone oxidation catalyst rau kev tshem tawm ntawm cov organic sib txuas. Xiao li al. pom tias pt nanoparticles yog nyob ze nrogTus kab khiavNtawm catalyst nto thiab yauv muaj zog sib cuam tshuam, yog li kev txhim kho cov kab mob oxone, uas pab txhawb rau oxidation ntawm toluene. Zhang Lanhe thiab lwm tus tau npaj dopedTus kab khiav/ Al2o3 catalysts. Doped hlau oxides muab cov tshuaj tiv thaiv qhov chaw rau cov tshuaj tiv thaiv ntawm cov organic sib txuas thiab o3, ua rau muaj kev ua tau zoo dua ntawmTus kab khiav/ Al2o3 thiab kev nce ntxiv hauv cov chaw nquag ntawm thaj chaw catalyst
Yog li ntawd, ntau cov kev tshawb fawb tau pom tiascerium oxideComposite catalysts tsis tuaj yeem tsuas yog txhim kho qhov kev ua tsis zoo ntawm catalcitrant organic micro organic kev kho mob organic thiab kuj tseem muaj cov txheej txheem bromate tsim tawm thaum lub sijhawm ua haujlwm. Lawv muaj cov kev thov kev cia siab hauv Ozone Dej Kho.
3, catalytic tsis zoo ntawm kev tawm tsam cov organic
Tus kab khiav, raws li ib lub ntiaj teb tsawg tsawg olide, tau kawm nyob rau hauv multiphase catalysis vim nws cov oxygen cia muaj peev xwm.
Wang li al. synthesized ib ce mn composite oxide nrog rod-puab morphology (CE / MN / MN / MN / MNK MORPORT sib piv ntawm 3: 7) siv cov txheej txheem hydrothermal. Mn ions tau doped rau hauvTus kab khiavLub moj khaum los hloov CE, yog li nce cov kev xav ntawm cov pa oxygen. Raws li CE4 + yog hloov los ntawm MNS4 + yog hloov los ntawm MN ions, ntau cov oxygen cov chaw seem yog tsim, uas yog vim li cas rau nws txoj haujlwm siab dua. DON ET AL. Synthesized MN ce oxide catalalts siv txoj kev tshiab sib txawv redox nag los nag thiab hydrothermal cov hau kev. Lawv pom tias qhov sib piv ntawm manganese thiabxiIABUa si ib lub luag haujlwm tseem ceeb hauv kev tsim ntawm catalyst thiab cuam tshuam nws cov kev ua tau zoo thiab catalyntic.XiIABhauv manganesecerium oxideUa si lub luag haujlwm tseem ceeb hauv kev tshaj tawm ntawm Toluene, thiab manganese tau pom tias yog lub luag haujlwm tseem ceeb hauv kev tawm ntawm Toluene. Kev sib koom tes ntawm kev sib xyaw ntawm manganese thiab cerium txhim kho cov txheej txheem catalytic.
4.Phocatalyst
Tshav thiab Al. Ua tiav npaj CE PRE-0 @ C Siv cov qauv nag lossis daus. Cov txheej txheem tshwj xeeb yog tias tus nqi doping ntawm PR, FE, thiab C ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm photocatalytic. Qhia tus nqi tsim nyog ntawm PR, FE, thiab C rau hauvTus kab khiavMuaj peev xwm txhim kho cov duab photocatalytic ua tau zoo ntawm cov qauv pom kev ua paug, muaj kev tsim cov pa roj carbon ntau zoo dua, thiab ntau cov pa tawm cov pa. Kev ua kom zoo tshaj plaws photocatalytic kev ua haujlwm ntawmTus kab khiav-Go Nanocomposites npaj los ntawm Ganesan li al. yog ntaus nqi los txhim kho thaj chaw thaj chaw, kev nqus kev siv, nqaim bandgap, thiab saum npoo photoresponsesponsesponsesponsesponsesponseff. Line li al. Pom tias CE / Caj Npab Phem yog qhov zoo photocatalyst nrog cov neeg muaj peev xwm thov. Petrovic li al. npajTus kab khiavcatalysts siv tas li cov txheej txheem hluav taws xob tas li thiab hloov lawv nrog cov cua sov uas tsis yog cua nab kuab pulka ntshav. Ob qho ntshav hloov kho thiab cov ntaub ntawv tsis muaj kev pom zoo ua rau muaj peev xwm zoo catalytic zoo nyob rau hauv cov txheej txheem ntshav thiab cov photocatalytic cov txheej txheem.
Tag
Kab lus no xyuas cov kev cuam tshuam ntawm cov qauv hluavtaws ntawmcerium oxideNtawm particle morphology, lub luag haujlwm ntawm morphology ntawm cov khoom thiab catalytic ua haujlwm, nrog rau cov nyhuv synergistic thiab kev siv ntawmcerium oxidethiab dopants thiab cov neeg nqa khoom. Txawm hais tias cerium oxide tau kawm dav thiab thov kom muaj kev kawm kom dej ib puag ncig xws li cov teeb meem dej ib puag ncig, tseem muaj teeb meem ntau yam teeb meem, xws li tsis meejcerium oxideMorphology thiab thauj cov tshuab ntawm Caleal txhawb cov catalysts. Cov kev tshawb fawb ntxiv yog xav tau nyob rau ntawm cov qauv hluavtaws, txhim kho cov nyhuv synalys ntawm cov khoom sib txawv, thiab kawm catalyticism ntawm cov khoom sib txawv.
Phau Ntawv Sau Npe Sau
Shandong Ceramics 2023 Qhov Teeb Meem 2: 64-73
Cov sau phau ntawv: ZHou Bin, Wang Peng, Meng Fanpeng, thiab lwm yam
Lub sijhawm Post: NOV-29-2023