Ngā Matūriki Nano o te Cerium Oxide e rua ngā wāhanga: Te Mahi Tahi ā-Taupānga
Nā ngā whanaketanga hou o te nanotechnology kua arataki mai he wā hou o ngā rauemi me ngā āhuatanga ahurei, inā koa i roto i te ao o te rokiroki pūngao me ngā taputapu hiko. Ko tētahi o ngā mahi auaha whakamiharo ko te whanaketanga o te biphasicngā matūriki nano cerium oxide, kua puta ake nei hei rauemi mahi-rua i roto i ngā tono dielectric me te supercapacitor. E whakaatu ana tēnei putanga hou, i tūhuratia e Prakash et al., i te kaha nui mō ngā matūriki nano cerium oxide ki te huri i ngā hangarau o nāianei, me te tuku whakarei ake ka tino whai hua mō ngā tono ahumahi me ngā tono kaihoko.
Ko te waikura cerium, he rauemi maha-whakamahinga e mōhiotia ana mō tōna kaha rokiroki hāora me tōna whanonga redox, kua arohia i roto i ngā mara maha. Nā te nui o te ōwehenga o te mata ki te rōrahi o ōna matūriki nano, e whakaatu ana i ngā āhuatanga whakarei ake e tino hira ana mō ngā tono matatau. Ko te rangahau a Prakash mā e whakaatu ana ehara i te mea ko te maha-whakamahinga hanganga me te mahi o ēnei matūriki nano anake engari ko ō rātou kaha mahi-rua ka taea te whakatutuki i te whānuitanga o ngā whakamahinga. Mā tēnei mahi tahi ka whakanohowaikura ceriumkei mua ngā matūriki nano i ngā mahi auaha i hangaia hei aro atu ki te pikinga ake o te hiahia mō ngā otinga pūngao whai hua.
E whakamārama ana te rangahau i ngā rautaki hangahanga e whakamahia ana hei whakaputa i ngā matūriki nano cerium oxide biphasic. I whakamahia e ngā kairangahau tētahi tikanga hydrothermal mō te tukanga hangahanga, e āhei ai te whakahaere tika i te rahi me te āhua o te matūriki. Mā te whakarerekē i ngā tawhā hangahanga, i tutuki i a rātou ngā matūriki nano e whakaatu ana i ngā hanganga fluorite me te monoclinic. He mea nui tēnei huinga ahurei o ngā wāhanga nā te mea ka whakarei ake i ngā āhuatanga hiko e hiahiatia ana mō te mahi tino pai i roto i ngā pūnaha rokiroki pūngao.
I whakamahia whānuitia ngā tikanga whakaahuatanga pēnei i te X-ray diffraction (XRD) me te transmission electron microscopy (TEM) hei tātari i ngā nanoparticles i hangaia. I whakaūtia e ngā hua XRD te aroaro o ngā āhua tioata e rua, ā, i whakaratohia e te whakaaturanga TEM he whakaahua mārama e whakaatu ana i te ōritetanga me te whakahaere rahi o ngā nanoparticles. Ehara i te mea ko te kawa hanga anake te whakamana i ēnei tikanga engari e whakaatu ana hoki i ngā āhuatanga whai hua o te rauemi ka taea te arahi ki ngā whakapainga nui i roto i te kiato pūngao me te kawe hiko.
Ko tētahi o ngā āhuatanga whakamīharo o ngā matūriki nano cerium oxide biphasic ko ō rātou āhuatanga dielectric. He mahi nui tā ngā dielectric i roto i ngā taputapu hiko, e pā ana ki ō rātou kaha mahi, tae atu ki te rokiroki pūngao me te tuku tohu. Mā te āhua biphasic o te cerium oxide ka pai ake te pumau dielectric me ngā uara tangent ngaronga, ka tino pai mō ngā tono maha i roto i ngā capacitors me ētahi atu wāhanga hiko. He mea nui tēnei whakarei ake mō ngā taputapu o te whakatupuranga e whai ake nei e hiahia ana ki te pai ake o te mahi me ngā āhua iti ake.
Hei tāpiri atu ki tēnā, ka rukuhia e te rangahau ngā tono a te supercapacitor o ngā matūriki nano cerium oxide. E mōhiotia ana ngā supercapacitor mō tō rātou kaha ki te tuku tere i te pūngao, inā koa i roto i ngā tono e hiahia ana kia tere te huringa utu me te tukunga. Ko te whakaurunga o ngā matūriki nano cerium oxide biphasic ki te hoahoa supercapacitor kua whakaatu i ngā hua whai hua, e whakarei ake ana i ngā uara capacitance me te pupuri tonu i te pumau huringa pai. Nā tēnei āhuatanga ka waiho rātou hei kaitono kaha mō ngā otinga rokiroki pūngao i roto i ngā waka hiko me ngā pūnaha pūngao whakahou.
Ko tētahi āhuatanga whakamere o te rangahau e pā ana ki te oranga tonutanga o te taiao e pā ana ki te whakamahi i ngā matūriki nano cerium oxide. I te mea e whakanui haere ana ngā ahumahi i ngā rauemi e pai ana ki te taiao, ko te hanganga me te whakamahinga o te cerium oxide e hangai ana ki ngā mātāpono matū matomato. Mā te whakaurunga o ngā rauemi māmā, kore-paitini ka hua ake he hua haumaru ake, ā, ka whakaiti i te tapuwae taiao e pā ana ki ngā hangarau capacitor tuku iho.
He nui te takoha a ngā kitenga a Prakash me ētahi atu ki ngā tuhinga o nāianei, e whakarato ana i te māramatanga whānui mō te mahi a ngā matūriki nano cerium oxide biphasic. Mā te whakamārama i ā rātou tikanga me ngā tono pea mā roto i ngā kawa whakamātautau pakari, ka whakarite te rangahau i te turanga mō ngā rangahau ā muri ake nei. He mea nui tēnei mahi turanga mō ngā kairangahau ahumahi me ngā miihini e whai ana ki te auaha ake i roto i te mara o te rokiroki pūngao me ngā taputapu hiko.
I roto i te ao hangarau e whanake tonu ana, he nui ngā whai wāhitanga mō te auahatanga mā te āheinga ki te whakarite rauemi i te rahi nano. Ko ngā matūriki nano cerium oxide biphasic i huraina i roto i tēnei rangahau he tohu mō te huarahi e taea ai e te nanotechnology te arahi ki ngā putanga nui. Mā te rangahau me te whanaketanga tonu, ka kite pea tātou i te whakaurunga o ēnei rauemi ki roto i ngā hua o ia rā, hei whakarei ake i ō rātou mahi me ngā inenga mahi.