Baro isku-dhafka iyo wax ka beddelkaCerium oxide nanomaterials
Isku-dhafkaceria nanomaterialsWaxaa ka mid ah roobab, koronto, biyo-dhimis, farsamaynta farsamada, isku-dhafka gubashada, sol gel, lotion micro iyo pyrolysis, kuwaas oo hababka ugu muhiimsan ee isku-dhafka ah ay yihiin roobka iyo hydrothermal. Habka Hydrothermal waxaa loo tixgeliyaa habka ugu fudud, ugu dhaqaalaha badan, iyo habka lacag-la'aanta ah ee lagu daro. Caqabadda ugu weyn ee habka hydrothermal waa in la xakameeyo qaabka nanoscale morphology, taas oo u baahan hagaajin taxaddar leh si loo xakameeyo sifooyinkeeda.
Wax ka beddelkaceriawaxaa lagu wanaajin karaa dhowr habab: (1) doping aions biraha kale oo leh qiime jaban ama cabbir yar oo ku jira xargaha ceria. Habkani ma hagaajin karo oo kaliya waxqabadka birta oksaydhyada ku lug leh, laakiin sidoo kale waxay sameeyaan qalab cusub oo deggan oo leh astaamo cusub oo jireed iyo kiimiko. (2) Ku kala firdhi ceria ama analooyadeeda doped ee alaabta sidaha ku habboon, sida kaarboon firfircoon, graphene, iwm.Cerium oxideWaxa kale oo ay u adeegi kartaa sida qaade kala firdhiya biraha sida dahabka, platinum, iyo palladium. Wax ka beddelka alaabta ku salaysan cerium dioxide waxay badi isticmaashaa biraha kala-guurka, biraha alkali/alkali ee dhifka ah, biraha dhulka dhifka ah, iyo biraha qaaliga ah, kuwaas oo leh firfircooni ka wanaagsan iyo xasilloonida kulaylka.
CodsigaCerium oxideiyo Kataliyeyaal isku dhafan
1, Codsiga qaababka kala duwan ee ceria
Laura iyo al. ayaa sheegay go'aaminta saddexda nooc ee jaantusyada marxaladda morphology-ga ceria, kuwaas oo la xidhiidha saamaynta fiirsashada alkali iyo heerkulka daawaynta hydrothermal ilaa kama dambaystaCeO2nanostructure morphology. Natiijooyinku waxay muujinayaan in dhaqdhaqaaqa catalytic uu si toos ah ula xiriiro saamiga Ce3+/Ce4+ iyo diiradda bannaan ee ogsijiinta. Wei iyo al. la sameeyay saddex Pt/CeO2kiciyayaal leh qaab-dhismeedka sideyaal kala duwan (Usha sidaCeO2-R), cubic (CeO2-C), iyo octahedral (CeO2-O), kuwaas oo si gaar ah ugu habboon oksaydhka heerkulka hooseeya ee C2H4. Bian iyo al. diyaariyey taxane ahNanomaterials CeO2oo leh qaab-usha-qaabeeya, cubic, granular, iyo qaab-dhismeedka octahedral, waxaana la ogaaday in kicinta ay ku raran yihiinNanoparticles CeO2(5Ni/NPs) waxa ay soo bandhigeen firfircooni firfircooni aad u sarreeya iyo xasillooni ka wanaagsan tii kiciyaasha noocyada kale eeCeO2taageero.
2.Catalytic naafaynta wasakhowga biyaha
Cerium oxideayaa loo aqoonsaday inay tahay kicinta oksaydhka ozone ee waxtarka leh ee ka saarista xeryahooda organic ee la doortay. Xiao iyo al. la ogaaday in Pt nanoparticles ay xiriir dhow la leeyihiinCeO2dusha sare ee kicinta oo la maro is-dhexgal xooggan, taas oo hagaajinaysa dhaqdhaqaaqa kala-goynta ozone oo soo saara noocyo badan oo oksijiin ah, taas oo gacan ka geysata oksaydhka toluene. Zhang Lanhe iyo kuwa kale waxay diyaariyeen dopedCeO2/Al2O3 kicinta. Ossaydhyada birta ah ee doped waxay bixiyaan falcelin falcelin ah oo ka dhexeeya xeryahooda organic iyo O3, taasoo keentay waxqabadka kicinta sare eeCeO2/Al2O3 iyo korodhka goobaha firfircoon ee dusha sare ee kicinta
Sidaa darteed, daraasado badan ayaa taas muujiyaycerium oxideMashruucyada isku dhafan kaliya ma kor u qaadi karaan hoos u dhaca wasakhowga organic recalcitrant ee duurka ku daawaynta katalytic ozone ee biyaha wasakhda ah, laakiin sidoo kale waxay leeyihiin saamayn inhibitory on bromate soo saaray inta lagu guda jiro habka catalytic ozone. Waxay leeyihiin rajooyin ballaadhan oo ku saabsan daaweynta biyaha ozone.
3, xaalufka Catalytic ee xeryahooda organic kacsan
CeO2, sida caadiga ah oksaydh dhulka naadirka ah, ayaa lagu bartay catalysis multiphase sababtoo ah awoodda kaydinta ogsijiinta sare.
Wang iyo al. la sameeyay Ce Mn osaydh ka kooban oo leh qaab-dhismeedka ul u eg (Samiga Ce/Mn molar ee 3:7) iyadoo la adeegsanayo habka hawo-dhaliye. Mn ions ayaa lagu shubayCeO2qaab dhismeedka lagu beddelayo Ce, taas oo kordhinaysa xoojinta boosaska oksijiinta. Maaddaama Ce4+ lagu beddelay Mn ions, boosas oksijiin badan ayaa la sameeyay, taas oo ah sababta dhaqdhaqaaqeeda sare. Du iyo al. Mn Ce oxide kiciyayaal la sameeyay iyadoo la isticmaalayo hab cusub oo isku darka roobabka redox-ka iyo hababka kulaylka biyaha. Waxay ogaadeen in saamiga manganese iyoceriumwaxay door muhiim ah ka ciyaartay samaynta kicinta oo si wayn u saamaysay waxqabadkeeda iyo firfircoonideeda.Ceriummanganesecerium oxideWaxa uu door muhiim ah ka ciyaaraa soo saarista toluene-ka, iyo manganese waxa la tusay in uu door muhiim ah ka ciyaaro oksaydhka toluene. Isku-dubbaridka u dhexeeya manganese iyo cerium waxay hagaajinaysaa habka falcelinta catalytic.
4.Photocatalyst
Sun iyo al. si guul leh loogu diyaariyey Ce Pr Fe-0 @ C iyadoo la adeegsanayo habka roobabka. Habka gaarka ah ayaa ah in qadarka doping ee Pr, Fe, iyo C ay door muhiim ah ka ciyaaraan dhaqdhaqaaqa sawir-qaadista. Soo bandhigida qaddar ku habboon Pr, Fe, iyo C gudahaCeO2Waxay si weyn u wanaajin kartaa waxtarka photocatalytic ee muunada la helay, sababtoo ah waxay leedahay xayeysiis wanaagsan oo wasakh ah, nuugista iftiinka muuqda ee waxtarka leh, heerka samaynta sare ee xadhkaha kaarboonka, iyo meelo badan oo oksijiin ah. Waxqabadka photocatalytic ee la xoojiyay eeCeO2-GO nanocomposites oo ay diyaariyeen Ganesan et al. waxaa loo aaneeyaa aagga korka oo la xoojiyey, xoojinta nuugista, faashad cidhiidhi ah, iyo saamaynta sawir-qaadista oogada. Liu iyo al. Waxa la ogaaday in Ce/CoWO4 ka kooban yahay kicinta wax-qabad ee wax-ku-oolka ah ee wax-ku-oolka ah ee wax-ku-oolka ah ee leh qiimaha codsiga. Petrovic iyo al. diyaarisayCeO2kiciyaasha isticmaalaya habka electrodeposition joogto ah oo hadda jira oo wax ka beddeleen iyaga oo aan kulayl ahayn cadaadis atmospheric pulsating corona plasma. Qalabka balaasmaha ee wax laga beddelay iyo kuwa aan la beddelin labaduba waxay muujinayaan karti-catalytic wanaagsan labadaba hababka xaalufinta balaasmaha iyo sawir-qaadista.
Gabagabo
Maqaalkani waxa uu dib u eegayaa saamaynta hababka synthesis eecerium oxideon morphology particle, doorka morphology ee guryaha dusha iyo dhaqdhaqaaqa catalytic, iyo sidoo kale saamaynta synergistic iyo codsiga u dhexeeyacerium oxideiyo dopants iyo sidayaal. In kasta oo wax-soo-saareyaasha cerium oxide-ku-salaysan si weyn loo darsay loogana dabaqay dhinaca ka-catalysis-ka, oo ay horumar la taaban karo ka sameeyeen xallinta dhibaatooyinka deegaanka sida daaweynta biyaha, haddana waxaa jira dhibaatooyin badan oo la taaban karo, sida kuwa aan caddayn.cerium oxideqaab-dhismeedka iyo habka rarka ee cerium taageeray kicinta. Cilmi-baaris dheeraad ah ayaa loo baahan yahay habka isku-dhafka ah ee kicinta, kor u qaadista saameynta isku-dhafka ah ee ka dhexeeya qaybaha, iyo barashada habka catalytic ee culeysyada kala duwan.
Qoraaga joornaalka
Shandong Ceramics 2023 cadadka 2: 64-73
Qorayaasha: Zhou Bin, Wang Peng, Meng Fanpeng, iwm
Waqtiga boostada: Nov-29-2023