ʻEhā mau noi nui o ka nano ceria

Nano ceriahe mea maʻalahi a hoʻohana nui ʻiaʻohe lepo lāʻaume ka liʻiliʻi liʻiliʻi, ka hāʻawi like ʻana i ka nui o ka nui, a me ka maʻemaʻe kiʻekiʻe. ʻAʻole hiki ke hoʻoheheʻe ʻia i ka wai a me ka alkali, hiki ke hoʻoheheʻe iki ʻia i ka waikawa. Hiki ke hoʻohana ʻia e like me nā mea polishing, catalysts, catalyst carriers ( additives), automotive exhaust absorbers, ultraviolet absorbers, fuel cell electrolytes, electronic ceramics, etc. , hiki ke hoʻemi i ka mahana sintering o nā seramika, keʻakeʻa i ka ulu ʻana o ka lattice, a hoʻomaikaʻi i ka nui o nā seramika. Hiki ke hoʻonui maikaʻi i ka hana catalytic o ka catalyst kahi ʻāpana ākea nui. ʻO kāna mau waiwai valence variable e hāʻawi iā ia i nā waiwai optoelectronic maikaʻi loa, hiki ke doped i nā mea semiconductor ʻē aʻe no ka hoʻololi ʻana, hoʻomaikaʻi i ka pono o ka neʻe ʻana o ka photon, a me ka hoʻomaikaʻi ʻana i ka hopena photoexcitation o ka mea.

Hoʻopili ʻia i ka hoʻopalekana UV

Wahi a ka noiʻi, hiki i ke kukui ultraviolet mai 280nm a 320nm ke hoʻoulu i ka ʻili ʻili, sunburn, a me ka maʻi maʻi ʻili i nā hihia koʻikoʻi. ʻO ka hoʻohui ʻana i ka cerium oxide nanoscale i nā mea hoʻonaninani hiki ke hōʻemi i ka pōʻino o ka radiation ultraviolet i ke kino o ke kanaka. ʻO ka Nano cerium oxide ka ikaika o ka absorption i nā kukui ultraviolet a hiki ke hoʻohana ʻia ma ke ʻano he ultraviolet absorber no nā huahana e like me ka sunscreen cosmetics, aniani kaʻa, nā fibers sunscreen, coatings, plastics, etc. ka lawe ʻana i ka mālamalama ʻike, ka transmittance maikaʻi, a me ka hopena pale UV maikaʻi; Eia kekahi, ʻo ka uhi ʻana i ka silicon oxide amorphous ma ka cerium oxide hiki ke hōʻemi i kāna hana catalytic, ma laila e pale ai i ka discoloration a me ka deterioration o nā mea hoʻonaninani ma muli o ka hana catalytic o ka cerium oxide.

 Hoʻohana ʻia i nā catalysts

I nā makahiki i hala iho nei, me ka hoʻomaikaʻi ʻana o ka nohona o nā kānaka, ua lilo nā kaʻa i mea kaulana i ke ola o nā kānaka. I kēia manawa, puhi nui nā kaʻa i ka ʻaila. ʻAʻole hiki i kēia ke pale i ka hana ʻana o nā kinoea ʻino. I kēia manawa, ʻoi aku ma mua o 100 mau mea i hoʻokaʻawale ʻia mai ka pau ʻana o ke kaʻa, a ʻoi aku ma mua o 80 mau mea pōʻino i hoʻolaha ʻia e ka ʻoihana hoʻomalu kaiapuni Kina, ʻoi aku ka nui o ka carbon monoxide, hydrocarbons, nitrogen oxides, particulate matter (PM), etc. , koe wale no nā mea ʻona, oxygen, a me nā mea puhi ahi e like me ka carbon dioxide a me ka mahu wai, he mau mea ʻino ʻole, he mea ʻino nā mea ʻē aʻe a pau. No laila, ʻo ka hoʻomalu ʻana a me ka hoʻoponopono ʻana i ka haumia o nā kaʻa i lilo i pilikia wikiwiki e hoʻoponopono ʻia.

E pili ana i nā mea hoʻoheheʻe kaʻa, ʻo ka hapa nui o nā metala maʻamau i hoʻohana ʻia e ka poʻe i nā lā mua he chromium, keleawe, a me ka nickel, akā ʻo kā lākou drawbacks he kiʻekiʻe ignition wela, susceptibility i ka make, a me ka hana catalytic maikaʻi ʻole. Ma hope mai, ua hoʻohana ʻia nā metala makamae e like me ka platinum, rhodium, palladium, a me nā mea ʻē aʻe ma ke ʻano he catalysts, he mau mea maikaʻi e like me ke ola lōʻihi, ka hana kiʻekiʻe, a me ka hopena hoʻomaʻemaʻe maikaʻi. Eia nō naʻe, ma muli o ke kumukūʻai kiʻekiʻe a me ke kumu kūʻai o nā metala makamae, ua maʻalahi lākou i ka make ma muli o ka phosphorus, sulfur, lead, etc.

ʻO ka hoʻohui ʻana i ka nano ceria i nā mea hoʻomaʻemaʻe hoʻomaʻemaʻe automotive loaʻa nā mea maikaʻi e like me ka hoʻohui ʻana i ka non nano ceria: nui ka ʻāpana kikoʻī kikoʻī o ka nano ceria, kiʻekiʻe ka nui o ka uhi, haʻahaʻa ka ʻike o nā haumia ʻino, a ʻo ka hiki ke mālama i ka oxygen. mahuahua; Aia ʻo Nano ceria ma ka nanoscale, e hōʻoia ana i kahi kiʻekiʻe kikoʻī kikoʻī kikoʻī o ka catalyst i kahi ea wela, a laila e hoʻomaikaʻi nui ai i ka hana catalytic; Ma ke ʻano he mea hoʻohui, hiki iā ia ke hōʻemi i ka nui o ka platinum a me ka rhodium i hoʻohana ʻia, hoʻoponopono maʻalahi i ka lākiō wahie ea a me ka hopena catalytic, a hoʻomaikaʻi i ka paʻa wela a me ka ikaika mechanical o ka mea lawe.

Hoʻohana ʻia i ka ʻoihana kila

Ma muli o kāna ʻano atomic kūikawā a me ka hana, hiki ke hoʻohana ʻia nā mea ʻenehana honua ma ke ʻano he trace additives i ke kila, hao hao, aluminika, nickel, tungsten a me nā mea ʻē aʻe e hoʻopau ai i nā haumia, hoʻomaʻemaʻe i nā kīʻaha a hoʻomaikaʻi i ka haku mele, a laila e hoʻomaikaʻi ai i ka mechanical, physical and ka hana ʻana i nā waiwai o nā alloys, a me ka hoʻomaikaʻi ʻana i ke kūpaʻa wela a me ka pale ʻana i ka corrosion o nā alloys. No ka laʻana, ma ka ʻoihana kila, hiki i nā ʻāina laha ʻole e like me nā mea hoʻohui ke hoʻomaʻemaʻe i ke kila hoʻoheheʻe, hoʻololi i ka morphology a me ka hāʻawi ʻana i nā haumia i waenakonu o ke kila, hoʻomaʻemaʻe i nā kīʻaha, a hoʻololi i ke ʻano a me ka hana. ʻO ka hoʻohana ʻana i ka nano ceria ma ke ʻano he uhi a me ka mea hoʻohui hiki ke hoʻomaikaʻi i ke kūpaʻa o ka oxidation, ka wela wela, ka ʻino wai, a me nā waiwai sulfurization o nā alloys wela kiʻekiʻe a me ke kila kila, a hiki ke hoʻohana ʻia ma ke ʻano he inoculant no ka hao ductile.

 Hoʻopili ʻia i nā ʻano ʻē aʻe

Nano cerium oxide He nui nā mea hoʻohana ʻē aʻe, e like me ka hoʻohana ʻana i ka cerium oxide i hoʻokumu ʻia i nā oxides composite e like me nā electrolytes i loko o nā wahie, hiki ke loaʻa i ka nui o ka oxygen dissociation i kēia manawa ma waena o 500 ℃ a me 800 ℃; ʻO ka hoʻohui ʻana o ka cerium oxide i ka wā o ka hana vulcanization o ka lāʻau hiki ke loaʻa kekahi hopena hoʻololi i ka lāʻau; He kuleana koʻikoʻi ka Cerium oxide i nā kula e like me nā mea luminescent a me nā mea magnetic.