Cerium, mmewere 58 nke tebụl oge.
Ceriumbụ metal nke ụwa na-adịghị ahụkebe, yana ihe yttrium a chọtara na mbụ, ọ na-emepe ụzọ maka nchọpụta ndị ọzọ.obere ụwaihe.
N'afọ 1803, ọkà mmụta sayensị German bụ Klaprott chọtara oxide ọhụrụ n'ime nkume dị arọ na-acha uhie uhie nke e mepụtara na obere obodo Sweden nke Vastras, bụ nke pụtara ocher mgbe ọ na-ere ọkụ. N'otu oge ahụ, ndị Swedish chemists Bezilius na Hissinger hụkwara oxide nke otu ihe na ore. Ruo 1875, ndị mmadụ nwetara cerium metal sitere na cerium oxide gbazere site na electrolysis.
Cerium metalna-arụsi ọrụ ike nke ukwuu ma nwee ike ịmị ọkụ ka ọ bụrụ cerium oxide ntụ ntụ. Cerium iron alloy agwakọta ya na ihe ndị ọzọ na-adịghị ahụkebe nke ụwa nwere ike iwepụta ọkụ mara mma mgbe a na-ete ihe siri ike, na-agbanye ọkụ gburugburu, ma bụrụ ihe dị mkpa na ngwaọrụ mgbanye dị ka ọkụ ọkụ na ọkụ ọkụ. Ọ ga-agbakwa onwe ya ọkụ, na-esonyere ya na sparks mara mma, agbakwunyere ígwè na Lanthanide ndị ọzọ, naanị iji kwalite mmetụta nke ọkụ ndị a. Ntupu nke cerium mere ma ọ bụ nke etinyere ya na cerium salts nwere ike ịbawanye uru nke combustion mmanụ ọkụ wee ghọọ ezigbo enyemaka combustion, nke nwere ike ịchekwa mmanụ. Cerium bụkwa ihe mgbakwunye iko dị mma, nke nwere ike ịmịnye ultraviolet na ụzarị infrared, a na-ejikwa ya na iko ụgbọ ala. Ọ bụghị naanị na ọ nwere ike igbochi ụzarị ultraviolet, kamakwa belata okpomọkụ n'ime ụgbọ ala, na-azọpụta ọkụ eletrik maka ntụ oyi.
Ngwa ndị ọzọ nke cerium dabere na ntughari n'etiti cerium trivalent na cerium tetravalent, nke nwere ezigbo ihe pụrụ iche na ọla ụwa na-adịghị ahụkebe. Njirimara a na-enye ohere cerium iji chekwaa ma hapụ oxygen nke ọma, nke enwere ike iji na mmanụ ọkụ Solid oxide katalyze Redox, si otú ahụ nweta mmegharị ntụziaka nke electrons iji mepụta ugbu a. Zeolites etinyere na cerium na lanthanum nwere ike ịrụ ọrụ dị ka ihe na-akpata mgbawa mmanụ ala n'oge nhazi nhazi. Iji cerium oxide na ọla ndị dị oké ọnụ ahịa na ndị na-agbanwe ụgbọ ala ternary catalytic nwere ike ịtụgharị gas mmanụ na-emerụ ahụ ka ọ bụrụ nitrogen, carbon dioxide, na mmiri na-enweghị mmetọ, na-egbochi n'ụzọ dị irè na-egbochi nnukwu ikuku ikuku ụgbọala. N'ihi ike ya ịmịkọrọ oxygen, ndị mmadụ na-enyochakwa otu esi eji cerium oxide nanoparticles na ọgwụgwọ antioxidant. Sistemụ laser steeti siri ike nke United States mepụtara nwere cerium, nke enwere ike iji chọpụta ngwa ọgụ nje site na nyochaa mkpokọta Tryptophan, enwere ike iji ya mee nchọpụta ahụike.
N'ihi ihe pụrụ iche nke fotophysical ya, cerium bụkwa ihe na-akpali akpali, nke na-eme ka ọnụ alaCerium (IV) oxidendị ọkà mmụta sayensị kwadoro n'ọhịa nke catalysts. Na Julaị 27, 2018, akwụkwọ akụkọ Sayensị bipụtara nnukwu nyocha sayensị sitere na otu Zuo Zhiwei sitere na oflọ Akwụkwọ nke Sayensị ihe na Nkà na ụzụ nke Mahadum ShanghaiTech - na-akwalite ntụgharị methane na ìhè. Isi ihe na usoro ntụgharị bụ ịchọta usoro Synergistic catalysis dị ọnụ ala ma rụọ ọrụ nke ọma nke cerium based catalyst and alcohol catalyst, nke na-edozi nsogbu sayensị nke ọma nke iji ike ọkụ mee ka methane ghọọ ngwaahịa mmiri mmiri na ụlọ okpomọkụ n'otu nzọụkwụ. ihe ngwọta ọhụrụ, nke akụ na ụba na gburugburu ebe obibi maka ntụgharị nke methane n'ime ngwaahịa kemịkalụ bara uru dị elu, dị ka mmanụ ọkụ roket.
Oge nzipu: Ọgọst-01-2023