I-Cerium ukwenza amafutha e-Rocket propellant ahambelana nokusingqongileyo

I-Cerium, icandelo lama-58 kwitheyibhile yeperiodic.

isinyithi secerium

Ceriumsesona sinyithi sinqabileyo somhlaba, kwaye kunye ne-yttrium element efunyenwe ngaphambili, ivula umnyango wokufunyanwa kwezinye.umhlaba onqabileyoizinto.

Ngomnyaka we-1803, isazinzulu saseJamani uKlaprott wafumana into entsha ye-oxide kwilitye elinzima elibomvu eliveliswe kwisixeko esincinci saseSweden saseVastras, esabonakala i-ocher xa isitsha. Kwangaxeshanye, iikhemisti zaseSweden uBezilius kunye noHissinger nabo bafumana ioxide yento enye kwintsimbi ekrwada. Kuze kube yi-1875, abantu bafumana i-cerium yesinyithi kwi-cerium oxide etyhidiweyo nge-electrolysis.

Cerium metalisebenza kakhulu kwaye inokutshisa ukwenza umgubo wecerium oxide. I-Cerium iron alloy exutywe nezinye izinto ezinqabileyo zomhlaba zinokuvelisa iintlantsi ezintle xa zikhuhla kwizinto eziqinileyo, zivutha izinto ezinokutsha ezingqongileyo, kwaye iyimathiriyeli ephambili kwizixhobo zokutshisa ezifana nezilayiti kunye neeplagi zentlantsi. Iya kuzitshisa ngokwayo, ikhatshwa ziintlantsi ezintle, intsimbi eyongeziweyo kunye nezinye iLanthanide, nje ukomeleza isiphumo sezi ntlantsi. I-mesh eyenziwe nge-cerium okanye ifakwe kwiityuwa ze-cerium inokunyusa ukusebenza kokutsha kwepetroli kwaye ibe yinto ebalaseleyo yokuncedisa ukutshisa, enokonga amafutha. I-Cerium ikwasisongezo seglasi esilungileyo, esinokufunxa i-ultraviolet kunye nemitha ye-infrared, kwaye isetyenziswa kakhulu kwiglasi yeMoto. Ayinakuthintela kuphela imisebe ye-ultraviolet, kodwa inciphisa ubushushu kwimoto, igcina umbane womoya womoya.

Ukusetyenziswa okuthe kratya kwecerium kusekwe kuguquko phakathi kwetrivalent cerium kunye netetravalent cerium, eneempawu ezizodwa kwiintsimbi zomhlaba ezinqabileyo. Eli nqaku livumela i-cerium ukuba igcine ngokufanelekileyo kwaye ikhulule i-oksijini, enokuthi isetyenziswe kwi-Solid oxide fuel cell to catalyze Redox, ngaloo ndlela ifumana ukunyakaza okuhambayo kwee-electron ukwenza okwangoku. I-Zeolite efakwe kwi-cerium kunye ne-lanthanum inokusebenza njenge-catalysts ye-petroleum cracking ngexesha lenkqubo yokucocwa. Ukusetyenziswa kwe-cerium oxide kunye neentsimbi ezixabisekileyo kwi-automotive ternary catalytic converters inokuguqula iirhasi eziyingozi zepetroli zibe yinitrogen engangcolisekiyo, ikharbhon diokside, kunye namanzi, ukuthintela ngokufanelekileyo isixa esikhulu sokukhupha izithuthi. Ngenxa yokukwazi ukufunxa ioksijini, abantu baphinda bajonge indlela yokusebenzisa i-cerium oxide nanoparticles kunyango lwe-antioxidant. Inkqubo yelaser yombuso eqinileyo ephuhliswe yi-United States iqulethe i-cerium, enokuthi isetyenziswe ukufumanisa izixhobo zebhayoloji ngokubeka iliso kuxinzelelo lwe-tryptophan, kwaye ingasetyenziselwa ukuchongwa kwezonyango.
i-cerium

Ngenxa yeepropathi zayo ezikhethekileyo zefotophysical, i-cerium ikwayinto ebaluleke kakhulu, eyenza ixabiso eliphantsiI-Cerium (IV) i-oxideithandwa zizazinzulu kwinkalo yee-catalysts. NgoJulayi 27, i-2018, iphephancwadi leSayensi lipapashe impumelelo enkulu yophando lwezenzululwazi liqela likaZuo Zhiwei elisuka kwiSikolo seSayensi yezinto eziphathekayo kunye neTekhnoloji yeYunivesithi yaseShanghaiTech - ukukhuthaza ukuguqulwa kwemethane ngokukhanya. Isitshixo kwinkqubo yokuguqulwa kukufumana inkqubo ye-Synergistic catalysis engabizi kwaye esebenzayo ye-cerium esekelwe kwi-catalyst kunye ne-alcohol catalyst, eyisombulula ngokufanelekileyo ingxaki yenzululwazi yokusebenzisa amandla okukhanya ukuguqula i-methane ibe yimveliso yolwelo kwiqondo lokushisa kwisinyathelo esinye, Ibonelela isisombululo esitsha, esinoqoqosho kunye nokusingqongileyo sokuguqulwa kwemethane kwiimveliso zemichiza eyongeziweyo yexabiso eliphezulu, ezifana ne-Rocket propellant fuel.


Ixesha lokuposa: Aug-01-2023