Nano ceriasixabiso eliphantsi kwaye sisetyenziswa ngokubanziioksidi yomhlaba enqabileyokunye nobukhulu bamasuntswana amancinci, ukusabalalisa ubungakanani bamasuntswana afanayo, kunye nokucoceka okuphezulu.Ayinyibiliki emanzini nakwi-alkali, ayinyibiliki kancinane kwiasidi.Ingasetyenziselwa njengezinto zokupholisa, i-catalysts, catalyst carriers (additives), i-absorber exhaust ye-automotive, i-absorber ye-ultraviolet, i-electrolyte ye-fuel cell, i-ceramics ye-elektroniki, njl. , enokunciphisa ukushisa kwe-sintering yee-ceramics, inqanda ukukhula kwe-lattice, kunye nokuphucula ubuninzi beekeramics.Indawo enkulu yendawo ethile inokuphucula ngcono umsebenzi we-catalytic we-catalyst.Iimpawu zayo eziguquguqukayo ze-valence zinika iimpawu ezintle ze-optoelectronic, ezinokuthi zifakwe kwezinye izinto ze-semiconductor zokuguqulwa, ukuphucula ukusebenza kakuhle kokufuduka kwe-photon, kunye nokuphucula umphumo we-photoexcitation wezinto eziphathekayo.
Ifakwe kwi-UV yokufunxa
Ngokophando, ukukhanya kwe-ultraviolet ukusuka kwi-280nm ukuya kwi-320nm kunokubangela ulusu lube lusu, ukutshiswa lilanga, kunye nomhlaza wolusu kwiimeko ezinzima.Ukongeza i-nanoscale cerium oxide kwizinto zokuthambisa kunokunciphisa umonakalo wemitha ye-ultraviolet kumzimba womntu.I-Nano cerium oxide inefuthe elinamandla lokufunxa kwimitha ye-ultraviolet kwaye ingasetyenziswa njenge-absorption ye-ultraviolet kwiimveliso ezifana nezithambiso ze-sunscreen, iglasi yemoto, i-sunscreen fibers, i-coatings, i-plastiki, njl. ukufunxwa kokukhanya okubonakalayo, ukuhanjiswa okulungileyo, kunye nesiphumo esihle sokukhusela i-UV;Ngaphezu koko, ukugquma i-amorphous silicon oxide kwi-cerium oxide kunokunciphisa umsebenzi wayo, ngaloo ndlela kuthintele ukuguquguquka kwemibala kunye nokonakala kwezinto zokuthambisa okubangelwa yi-catalytic umsebenzi we-cerium oxide.
Isetyenziswa kwii-catalysts
Kwiminyaka yakutshanje, ngokuphucuka komgangatho wokuphila kwabantu, iimoto ziye zanda kakhulu kubomi babantu.Okwangoku, iimoto ikakhulu zitshisa ipetroli.Oku akunakukuphepha ukuveliswa kweegesi eziyingozi.Okwangoku, izinto ezingaphezu kwe-100 ziye zahlulwa kwi-exhaust yemoto, apho ngaphezu kwe-80 zizinto ezinobungozi ezibhengezwe lishishini lokusingqongileyo laseTshayina, ngokukodwa kubandakanywa i-carbon monoxide, i-hydrocarbons, i-nitrogen oxides, i-particulate matter (PM), njl. , ngaphandle kwenitrogen, ioksijini, kunye neemveliso zokutsha ezifana nekharbon diokside kunye nomphunga wamanzi, ezingamacandelo angenabungozi, zonke ezinye iinxalenye ziyingozi.Ke ngoko, ukulawula kunye nokusombulula ukungcoliseka kombhobho wemoto kube yingxaki engxamisekileyo ekufuneka isonjululwe.
Ngokubhekiselele kwii-catalysts zokukhupha iimoto, uninzi lwezinyithi eziqhelekileyo ezazisetyenziswa ngabantu kwimihla yangaphambili yayiyichromium, ubhedu, kunye nenickel, kodwa ukusilela kwabo yayibubushushu obuphezulu bokutshisa, ukuba sengozini yetyhefu, kunye nomsebenzi ongemhle wokwenza izinto.Kamva, iintsimbi ezixabisekileyo ezifana neplatinum, rhodium, palladium, njl. zaye zasetyenziswa njenge-catalysts, enenzuzo efana nexesha elide lokuphila, umsebenzi ophezulu, kunye nesiphumo esihle sokucoca.Nangona kunjalo, ngenxa yexabiso eliphezulu kunye neendleko zesinyithi ezixabisekileyo, nazo ziyakwazi ukutyhelwa ngenxa ye-phosphorus, isulfure, i-lead, njl., okwenza kube nzima ukukhuthaza.
Ukongeza i-nano ceria kwi-automotive exhaust purification agents kunezi nzuzo zilandelayo xa kuthelekiswa nokongeza i-non-nano ceria: indawo ethile yendawo ye-nano ceria inkulu, umthamo wokugquma uphezulu, umxholo wobumdaka obunobungozi uphantsi, kunye nomthamo wokugcina ioksijini. ukwanda;I-Nano ceria ikwi-nanoscale, iqinisekisa indawo ethile ephakamileyo ye-catalyst kwi-atmosphere ephezulu yokushisa, ngaloo ndlela iphucula kakhulu umsebenzi we-catalytic;Njengesongezo, inokunciphisa inani leplatinum kunye ne-rhodium esetyenzisiweyo, ilungelelanise ngokuzenzekelayo umlinganiselo we-fuel fuel kunye ne-catalytic effect, kwaye iphucule ukuzinza kwe-thermal kunye namandla omatshini womthwali.
Isetyenziswe kwishishini lentsimbi
Ngenxa yolwakhiwo olukhethekileyo lweathomu kunye nomsebenzi, izinto ezinqabileyo zomhlaba zinokusetyenziswa njengezongezo zentsimbi, isinyithi, i-aluminium, i-nickel, i-tungsten kunye nezinye izinto zokuphelisa ukungcola, ukucokisa iinkozo kunye nokuphucula ukubunjwa kwezinto, ngaloo ndlela kuphuculwe oomatshini, umzimba kunye ukusetyenzwa kweempawu ze-alloys, kunye nokuphucula ukuzinza kwe-thermal kunye nokuxhatshazwa kwe-corrosion of alloys.Ngokomzekelo, kwishishini lensimbi, umhlaba onqabileyo njengezongezo unokuhlambulula isinyithi esinyibilikisiweyo, utshintshe i-morphology kunye nokusabalalisa ukungcola kumbindi wentsimbi, ukucoca iinkozo, kunye nokutshintsha isakhiwo kunye nokusebenza.Ukusetyenziswa kwe-nano ceria njenge-coating kunye ne-additives kunokuphucula ukuxhathisa kwe-oxidation, i-corrosion eshushu, i-corrosion yamanzi, kunye neempawu ze-sulfurization ye-alloys ephezulu yokushisa kunye nensimbi engenasici, kwaye ingasetyenziselwa njenge-inoculant ye-iron ductile.
Isetyenziswa kweminye imiba
Nano cerium oxide inolunye usetyenziso oluninzi, olufana nokusebenzisa i-cerium oxide esekelwe kwii-oksidi ezihlanganisiweyo njengee-electrolyte kwiiseli zamafutha, ezinokwanela ngokwaneleyo ioksijini ephezulu yokwahlukana koxinzelelo lwangoku phakathi kwe-500 ℃ kunye ne-800 ℃;Ukongezwa kwe-cerium oxide ngexesha le-vulcanization ye-rubber ingaba nefuthe elithile lokuguqula kwi-rubber;I-Cerium oxide nayo idlala indima ebalulekileyo kwiinkalo ezifana nezixhobo zokukhanya kunye nezixhobo zemagneti.
Ixesha lokuposa: May-19-2023