Synthesis no guhindura cerium oxyde no kuyikoresha muri catalizike

Kwiga kuri synthesis no guhinduraCerium oxyde nanomaterial

Synthesis yaceria nanomaterialikubiyemo imvura, coprecipitation, hydrothermal, synthesis ya mashini, synthesis yaka, sol gel, amavuta yo kwisiga hamwe na pyrolysis, muribwo buryo nyamukuru bwo guhuza ni imvura na hydrothermal.Uburyo bwa Hydrothermal uburyo bufatwa nkuburyo bworoshye, bwubukungu, kandi bwiyongera kubuntu.Ikibazo nyamukuru cyuburyo bwa hydrothermal nuburyo bwo kugenzura imiterere ya nanoscale, isaba guhinduka neza kugirango igenzure ibiranga.

Guhinduraceriairashobora kuzamurwa binyuze muburyo butandukanye: (1) gukoporora izindi ion zicyuma hamwe nibiciro biri hasi cyangwa ingano ntoya muri ceria lattice.Ubu buryo ntibushobora gusa kunoza imikorere ya okiside yicyuma kirimo, ariko kandi bugakora ibikoresho bishya bihamye hamwe nibintu bishya byumubiri nubumara.(2) Kwirakwiza ceria cyangwa igereranya ryayo kubikoresho bikwiye, nka karubone ikora, graphene, nibindi.Cerium oxydeIrashobora kandi kuba umwikorezi wo gukwirakwiza ibyuma nka zahabu, platine, na palladium.Guhindura ibikoresho bishingiye kuri cerium dioxyde ikoresha cyane cyane ibyuma byinzibacyuho, ubutare budasanzwe bwa alkali / alkali, ubutaka budasanzwe, nubutare bwagaciro, bufite ibikorwa byiza hamwe nubushyuhe bwumuriro.

Gushyira mu bikorwaCerium Oxidehamwe na Catalizike

1, Gukoresha morphologie zitandukanye za ceria

Laura n'abandi.yatanze raporo yerekana ubwoko butatu bwa ceria morphologie igishushanyo mbonera, bifitanye isano ningaruka ziterwa na alkali hamwe nubushyuhe bwo kuvura hydrothermal nubwa nyumaCeO2nanostructure morphologie.Ibisubizo byerekana ko ibikorwa bya catalitiki bifitanye isano itaziguye na Ce3 + / Ce4 + hamwe nuburinganire bwa ogisijeni yo hejuru.Wei n'abandi.synthesize eshatu Pt /CeO2catalizator hamwe na morphologie zitandukanye zitwara (inkoni nka (CeO2-R), kubic (CeO2-C), hamwe na octahedral (CeO2-O), bikwiranye cyane nubushyuhe buke bwa catalitiki ya okiside ya C2H4.Bian n'abandi.yateguye urukurikirane rwaCeO2 nanomaterialhamwe ninkoni, cubic, granular, na octahedral morphologie, ugasanga catalizator ziremereyeCeO2 nanoparticles(5Ni / NPs) yerekanye ibikorwa byinshi bya catalitiki nibikorwa bihamye kuruta catalizator hamwe nubundi buryo bwaCeO2inkunga.

2.Gutesha agaciro catalitike yanduye mumazi

Cerium oxydeyamenyekanye nka catalizike nziza ya ozone yo gukuraho ibinyabuzima byatoranijwe.Xiao n'abandi.wasanze Pt nanoparticles iri hafi yaCeO2hejuru ya catalizator kandi ikorana imbaraga, bityo igatezimbere ibikorwa byangirika bya ozone kandi ikabyara ubwoko bwinshi bwa ogisijeni ikora, bigira uruhare mukwangiza okiside ya toluene.Zhang Lanhe nabandi bateguye dopedCeO2/ Cataliseri ya Al2O3.Dopi ya oxyde ikozwe itanga umwanya wo kwitwara hagati yimiterere kama na O3, bikavamo imikorere ya catalitiki yo hejuruCeO2/ Al2O3 no kwiyongera kurubuga rukora hejuru ya catalizator

Kubwibyo, ubushakashatsi bwinshi bwerekanye kocerium oxydeCataliseri ikomatanya ntishobora kongera gusa kwangirika kwimyanda ihumanya mikorobe yangiza mu rwego rwo gutunganya amazi ya catalitiki ozone yo gutunganya amazi y’amazi, ariko kandi ikagira ingaruka mbi kuri bromate yakozwe mugihe cya catalitiki ya ozone.Bafite ibyifuzo byinshi byo gukoresha mumazi ya ozone.

3, Catalitike yangirika yibinyabuzima bihindagurika

CeO2, nkibisanzwe bidasanzwe bya oxyde yisi, byizwe muri catalizike nyinshi kubera ubushobozi bwa ogisijeni nyinshi.

Wang n'abandi.yashizemo Ce Mn ikomatanya oxyde hamwe na morphologie imeze nkinkoni (Ce / Mn molar ratio ya 3: 7) ikoresheje uburyo bwa hydrothermal.Mn ion zashyizwe muriCeO2urwego rwo gusimbuza Ce, bityo byongera ubunini bwimyanya myuka ya ogisijeni.Nkuko Ce4 + isimbuwe na Mn ion, hashyirwaho imyanya myinshi ya ogisijeni, niyo mpamvu yibikorwa byayo byinshi.Du n'abandi.synthesize Mn Ce oxyde cataliste ukoresheje uburyo bushya buhuza imvura ya redox nuburyo bwa hydrothermal.Basanze igipimo cya manganese naceriumyagize uruhare runini mu ishingwa rya catalizator kandi yagize ingaruka zikomeye ku mikorere yayo no mu bikorwa bya catalitiki.Ceriummanganesecerium oxydeigira uruhare runini muri adsorption ya toluene, kandi manganese byagaragaye ko igira uruhare runini mu okiside ya toluene.Guhuza hagati ya manganese na cerium bitezimbere inzira ya catalitiki.

4.Umufotozi

Izuba n'abandi.wateguye neza Ce Pr Fe-0 @ C ukoresheje uburyo bwimvura.Uburyo bwihariye nuko umubare wa doping ya Pr, Fe, na C ugira uruhare runini mubikorwa byo gufotora.Kwinjiza umubare ukwiye wa Pr, Fe, na C muriCeO2Irashobora kuzamura cyane imikorere ya fotokatalitike yicyitegererezo cyabonetse, kuko ifite adsorption nziza yumwanda, kwinjiza neza urumuri rugaragara, umuvuduko mwinshi wimikorere ya karubone, hamwe nubusa bwa ogisijeni.Gutezimbere ibikorwa bya fotokatike yaCeO2-GO nanocomposite yateguwe na Ganesan n'abandi.ni Byitiriwe Ubuso Bwongerewe Ubuso, Imbaraga zo Kwinjira, Gufunga Bunini, hamwe ningaruka za Photoresponse.Liu n'abandi.wasanze Ce / CoWO4 igizwe na catalizator ni fotokateri ikora neza kandi ifite agaciro gashoboka.Petrovic n'abandi.byateguweCeO2catalizator ukoresheje uburyo bwa elegitoronike ya electrodeposition kandi ikabihindura hamwe nubushyuhe bwikirere butari ubushyuhe bwa pulsating corona plasma.Plasma zombi zahinduwe kandi zidahinduwe zigaragaza ubushobozi bwiza bwa catalitiki muri plasma na fotokatalitike yo kwangirika.

Umwanzuro

Iyi ngingo isubiramo ingaruka zuburyo bwa synthesis yacerium oxydeku bice bya morphologie, uruhare rwa morphologie kumiterere yubuso nigikorwa cya catalitiki, kimwe ningaruka zo guhuza no gushyira mubikorwa hagaticerium oxydena dopants hamwe nabatwara.Nubwo catiseri ya cerium oxyde yakozwe cyane kandi ikoreshwa mubijyanye na catalizike, kandi imaze gutera intambwe igaragara mugukemura ibibazo by’ibidukikije nko gutunganya amazi, haracyari ibibazo byinshi bifatika, nkibidasobanutse.cerium oxydemorphologie hamwe nuburyo bwo gupakira cerium ishyigikiwe na catalizator.Ubundi bushakashatsi burakenewe kuburyo bwa synthesis ya catalizator, byongera imbaraga zo guhuza ibice, no kwiga uburyo bwa catalitiki yimitwaro itandukanye.

Umwanditsi w'ikinyamakuru

Shandong Ceramics 2023 Ikibazo 2: 64-73

Abanditsi: Zhou Bin, Wang Peng, Meng Fanpeng, nibindi