ʻO nā mea nano o ka honua laʻa ʻole he 4f sub-layer ʻokoʻa, ka manawa nui atomic magnetic, ka hoʻohui ʻana i ka orbit ikaika a me nā ʻano ʻano ʻē aʻe, e loaʻa ana i nā waiwai optical, uila, magnetic a me nā waiwai ʻē aʻe.He mau mea waiwai nui lākou no nā ʻāina a puni ka honua e hoʻololi i nā ʻoihana kuʻuna a hoʻomohala i nā ʻenehana kiʻekiʻe, a ua ʻike ʻia ʻo "ka hale waiwai o nā mea hou".
Ma waho aʻe o kāna mau noi i nā kula kuʻuna e like me ka mīkini metallurgical, petrochemicals, glass ceramics, a me nā lole māmā,nā ʻāina laha ʻoleHe mau mea kākoʻo koʻikoʻi nō hoʻi i nā kula e puka mai ana e like me ka ikehu maʻemaʻe, nā kaʻa nui, nā kaʻa ikehu hou, nā kukui semiconductor, a me nā hōʻike hou, pili loa i ke ola kanaka.
Ma hope o nā makahiki he ʻumi o ka hoʻomohala ʻana, ua hoʻololi ʻia ka manaʻo o ka noiʻi e pili ana i ka honua mai ka hoʻoheheʻe ʻana a me ka hoʻokaʻawale ʻana o ka honua maʻemaʻe kiʻekiʻe hoʻokahi i nā ʻenehana kiʻekiʻe o nā honua laha i ka magnetism, optics, uila, mālama ikehu, catalysis, biomedicine, a me nā kula ʻē aʻe.Ma ka ʻaoʻao hoʻokahi, ʻoi aku ka ʻoi aku o ke ʻano o ka loaʻa ʻana o nā mea i hoʻohui ʻia ka honua i loko o ka ʻōnaehana waiwai;Ma ka ʻaoʻao ʻē aʻe, ʻoi aku ka nui o ka nānā ʻana i nā mea aniani hana haʻahaʻa haʻahaʻa e pili ana i ka morphology.ʻOi loa me ka hoʻomohala ʻana o ka nanoscience hou, e hui pū ana i nā hopena liʻiliʻi, nā hopena quantum, nā hopena o ka ʻili, a me nā hopena interface o nā nanomaterials me nā hiʻohiʻona o ka papa uila uila kūʻokoʻa o nā mea o ka honua. ka hana maikaʻi loa o nā mea ʻenehana honua, A hoʻonui hou aku i kāna noi ma nā kahua o nā mea kuʻuna a me ka hana ʻenehana kiʻekiʻe hou.
I kēia manawa, aia nā mea nui o ka honua nanomaterials, ʻo ia hoʻi nā mea luminescent nano honua, nā mea catalytic nano honua, nā mea magnet nano magnetic,nano cerium oxidenā mea pale ultraviolet, a me nā mea hana nano ʻē aʻe.
No.1ʻO nā mea luminescent nano ka honua
01. Nā mea hoʻomāmā luminescent kakaʻikahi honua
Hoʻohui nā mea hoʻohuihui i nā ʻāpana hana like ʻole ma ka pae molekala e hoʻokō ai i nā hana hoʻohui a hoʻopaʻa ʻia.Loaʻa i nā ʻano mea hoʻohuihui organik nā hana o nā mea kūlohelohe a me nā mea ʻole, e hōʻike ana i ke kūpaʻa mechanical maikaʻi, ka maʻalahi, ka paʻa wela a me ka hana maikaʻi loa.
honua laha oleHe nui nā pōmaikaʻi o nā complexes, e like me ka hoʻomaʻemaʻe kala kiʻekiʻe, ke ola lōʻihi o ke kūlana hauʻoli, ka hua nui nui, a me nā laina kikoʻī emission waiwai.Hoʻohana nui ʻia lākou i nā kula he nui, e like me ka hōʻike ʻana, ka hoʻonui ʻana i ke alakaʻi nalu optical, nā lasers solid-state, biomarker, a me ka anti-counterfeiting.Eia nō naʻe, ʻo ka haʻahaʻa photothermal paʻa a me ka maikaʻi ʻole o ka hana ʻana o nā paʻakikī honua kakaʻikahi ke keʻakeʻa nei i kā lākou noi a hoʻolaha.ʻO ka hoʻohui ʻana i nā mea paʻakikī honua me nā matrices inorganic me nā waiwai mechanical maikaʻi a me ke kūpaʻa he ala maikaʻi ia e hoʻomaikaʻi ai i nā waiwai luminescent o nā paʻakikī honua.
Mai ka hoʻomohala ʻana o nā mea kanu organik inorganic hybrid, hōʻike kā lākou ʻano hoʻomohala i kēia mau hiʻohiʻona:
① ʻO ka mea hybrid i loaʻa ma ke ʻano doping kemika he mau mea hana paʻa, ka nui doping kiʻekiʻe a me ka hāʻawi like ʻana o nā ʻāpana;
② Ke hoʻololi ʻana mai nā mea hana hoʻokahi i nā mea hana multifunctional, hoʻomohala i nā mea hana multifunctional e hoʻonui i kā lākou noi;
③ He ʻokoʻa ka matrix, mai ka silica nui i nā substrate like ʻole e like me ka titanium dioxide, nā polymers organik, nā pālolo, a me nā wai ionic.
02. Keʻokeʻo LED laha honua luminescent mea
Ke hoʻohālikelike ʻia me nā ʻenehana kukui e loaʻa nei, nā huahana kukui semiconductor e like me nā kukui-emitting diodes (LEDs) i loaʻa nā pōmaikaʻi e like me ka lōʻihi o ka lawelawe ʻana, ka haʻahaʻa haʻahaʻa o ka ikehu, ke kiʻekiʻe o ka luminous pono, ka mercury free, UV manuahi, a me ka hana paʻa.Ua manaʻo ʻia ʻo ia ka "kumu kukui o ka hanauna ʻehā" ma hope o nā kukui incandescent, nā kukui fluorescent, a me nā kukui hoʻokuʻu kinoea ikaika (HIDs).
Hoʻokumu ʻia ka LED keʻokeʻo me nā chips, substrates, phosphors, a me nā mea hoʻokele.He mea koʻikoʻi ka pauka fluorescent honua i ka hana o ke keʻokeʻo LED.I nā makahiki i hala iho nei, ua hana ʻia ka nui o nā hana noiʻi ma luna o nā phosphors LED keʻokeʻo a ua holomua maikaʻi.
① ʻO ka hoʻomohala ʻana i kahi ʻano phosphor hou i hoʻohauʻoli ʻia e ka LED uliuli (460m) i hana i ka doping a me ka noiʻi hoʻololi ʻana ma YAO2Ce (YAG: Ce) i hoʻohana ʻia i nā ʻāpana ʻulaʻula LED e hoʻomaikaʻi i ka pono māmā a me ka hoʻolilo kala;
② Ua aʻo ʻia ka hoʻomohala ʻana o nā pauka fluorescent hou e ka kukui ultraviolet (400m) a i ʻole ke kukui ultraviolet (360mm) i ka haku mele ʻana, ke ʻano, a me nā hiʻohiʻona hiʻohiʻona o nā pauka fluorescent ʻulaʻula a me ka ʻōmaʻomaʻo, a me nā ratio like ʻole o nā pauka fluorescent ʻekolu. e kiʻi i ka LED keʻokeʻo me nā mahana kala like ʻole;
③ Ua hoʻokō ʻia nā hana ʻē aʻe ma nā pilikia ʻepekema kumu i ka hoʻomākaukau ʻana i ka pauka fluorescent, e like me ka mana o ka hoʻomākaukau ʻana i ka flux, e hōʻoia i ka maikaʻi a me ka paʻa o ka pauka fluorescent.
Eia kekahi, hoʻohana nui ʻia ke kukui keʻokeʻo LED i kahi kaʻina hoʻopili hui ʻia o ka pauka fluorescent a me ke silicone.Ma muli o ka maikaʻi ʻole o ka thermal conductivity o ka pauka fluorescent, e wela ka hāmeʻa ma muli o ka lōʻihi o ka manawa hana, e alakaʻi ana i ka ʻelemakule silicone a me ka pōkole o ke ola lawelawe o ka hāmeʻa.He koʻikoʻi kēia pilikia i nā LED kukui keʻokeʻo kiʻekiʻe.ʻO ka hoʻopili mamao kahi ala e hoʻoponopono ai i kēia pilikia ma ka hoʻopili ʻana i ka pauka fluorescent i ka substrate a hoʻokaʻawale iā ia mai ke kumu kukui LED polū, a laila e hōʻemi i ka hopena o ka wela i hana ʻia e ka chip i ka hana luminescent o ka pauka fluorescent.Inā loaʻa i nā ceramics fluorescent honua nā hiʻohiʻona o ka conductivity thermal kiʻekiʻe, ke kūpaʻa kiʻekiʻe o ka corrosion, ke kūpaʻa kiʻekiʻe, a me ka hana hoʻopuka optical maikaʻi loa, hiki iā lākou ke hoʻokō pono i nā koi noi o ke kukui keʻokeʻo kiʻekiʻe me ka ikehu kiʻekiʻe.ʻO nā pauka micro nano me ka hana sintering kiʻekiʻe a me ka hoʻopuehu kiʻekiʻe ua lilo i mea koʻikoʻi nui no ka hoʻomākaukau ʻana i nā ceramics hana opipika kiʻekiʻe kiʻekiʻe me ka hana kiʻekiʻe optical output.
03. Rare honua upconversion luminescent nanomaterials
ʻO ka luminescence upconversion kahi ʻano kūikawā o ke kaʻina hana luminescence i hōʻike ʻia e ka absorption o nā kiʻi kiʻi haʻahaʻa haʻahaʻa e nā mea luminescent a me ka hana ʻana o ka hoʻokuʻu photon kiʻekiʻe.Ke hoʻohālikelike ʻia me nā molekala wai kala kuʻuna a i ʻole nā kiko quantum, loaʻa i nā nanomaterial luminescent luminescent nā mea maikaʻi e like me ka nui anti Stokes shift, haiki emission band, kūpaʻa maikaʻi, haʻahaʻa haʻahaʻa, kiʻekiʻe o ke komo ʻana o ka ʻiʻo, a me ka haʻahaʻa haʻahaʻa o ka fluorescence interference.Loaʻa iā lākou nā manaʻo noiʻi ākea i ka papa biomedical.
I nā makahiki i hala iho nei, ua holomua nui nā nanomaterial luminescent upconversion honua i ka synthesis, ka hoʻololi ʻana o ka ʻili, ka hana ʻana o ka ʻili, a me nā noi biomedical.Hoʻonui ka poʻe i ka hana luminescence o nā mea ma o ka hoʻonui ʻana i kā lākou haku mele ʻana, ka mokuʻāina, ka nui, a me nā mea ʻē aʻe ma ke nanoscale, a me ka hoʻohui ʻana i ke ʻano kumu / pūpū e hōʻemi i ka luminescence quenching center, i mea e hoʻonui ai i ka hiki ke hoʻololi.Ma ka hoʻololi kemika, e hoʻokumu i nā ʻenehana me ka biocompatibility maikaʻi e hōʻemi i ka ʻawaʻawa, a hoʻomohala i nā ʻano kiʻi no ka upconversion luminescent cell living a in vivo;E hoʻomohala i nā ʻano hoʻohui olaola maikaʻi a palekana e pili ana i nā pono o nā noi like ʻole (nā cell detection immune, in vivo fluorescence imaging, photodynamic therapy, photothermal therapy, photo controlled release drugs, etc.).
Loaʻa i kēia noiʻi nā pono noi nui a me nā pono waiwai, a he koʻikoʻi koʻikoʻi koʻikoʻi ʻepekema no ka hoʻomohala ʻana i ka nanomedicine, ka hoʻolaha ʻana i ke olakino kanaka, a me ka holomua pilikanaka.
No.2 Rare honua nano magnetic mea
Ua hala ʻekolu pae hoʻomohala: SmCo5, Sm2Co7, a me Nd2Fe14B.Ma ke ʻano he pauka magnetic NdFeB i hoʻopaʻa ʻia no nā mea hoʻopaʻa paʻa paʻa, ʻo ka nui o ka palaoa mai 20nm a 50nm, e lilo ia i mea maʻamau nanocrystalline rare earth permanent magnet material.
Loaʻa i nā mea nanomagnetic honua nā hiʻohiʻona o ka liʻiliʻi liʻiliʻi, ka hoʻolālā domain hoʻokahi, a me ka coercivity kiʻekiʻe.Hiki i ka hoʻohana ʻana i nā mea hoʻopaʻa leo magnetic ke hoʻomaikaʻi i ka ratio signal-to-noise a me ka maikaʻi o ke kiʻi.Ma muli o kona liʻiliʻi liʻiliʻi a me ka hilinaʻi kiʻekiʻe, ʻo kona hoʻohana ʻana i nā ʻōnaehana micro motor he kuhikuhi koʻikoʻi no ka hoʻomohala ʻana i ka hanauna hou o ka mokulele, aerospace, a me nā kaʻa moana.No ka hoʻomanaʻo hoʻomanaʻo, ka wai magnetic, nā mea kūʻē Giant Magneto Resistance, hiki ke hoʻomaikaʻi maikaʻi ʻia ka hana, e hoʻolilo i nā mea hana kiʻekiʻe a me ka miniaturized.
No.3Nano honua laha olenā mea hoʻopalekana
Hoʻokomo ʻia nā mea catalytic laha ʻole a pau loa.Ma muli o nā hopena o ka ʻili, nā hopena leo, a me nā hopena nui, ua hoʻonui nui ʻia ka nanotechnology o ka honua.I loko o ka nui o nā hopena kemika, hoʻohana ʻia nā catalysts honua.Inā hoʻohana ʻia nā nanocatalysts honua, e hoʻomaikaʻi nui ʻia ka hana catalytic a me ka pono.
Hoʻohana pinepine ʻia nā nanocatalysts honua i ka petroleum catalytic cracking a me ka hoʻomaʻemaʻe hoʻomaʻemaʻe ʻana i ka pauka automotive.ʻO ka mea maʻamau i hoʻohana pinepine ʻia ka honua nanocatalyticCeO2aLa2O3, hiki ke hoʻohanaʻia e like me nā mea hoʻoikaika a me nā mea hoʻolaha, a me nā mea hoʻokele.
No.4Nano cerium oxidemea pale ultraviolet
Ua ʻike ʻia ʻo Nano cerium oxide ʻo ke kolu o ka hanauna ultraviolet isolation agent, me ka hopena kaʻawale maikaʻi a me ka transmittance kiʻekiʻe.I nā mea hoʻonaninani, pono e hoʻohana ʻia ka hana catalytic haʻahaʻa nano ceria ma ke ʻano he mea hoʻokaʻawale UV.No laila, kiʻekiʻe ka nānā ʻana o ka mākeke a me ka ʻike ʻana i nā mea pale ultraviolet nano cerium oxide.ʻO ka hoʻomaikaʻi mau ʻana o ka hoʻohui kaapuni i hoʻohui ʻia e pono ai i nā mea hou no nā kaʻina hana hana chip circuit circuit.Loaʻa i nā mea hou nā koi kiʻekiʻe no ka hoʻoliʻiliʻi ʻana i nā wai, a ʻo ka semiconductor rare earth polishing fluids pono e hoʻokō i kēia koi, me ka wikiwiki o ka polishing a me ka liʻiliʻi o ka poli.He mākeke ākea ka Nano rare earth polishing materials.
ʻO ka piʻi nui ʻana o ka loaʻa ʻana o ke kaʻa ua hoʻohaumia ʻia ka ea, a ʻo ka hoʻokomo ʻana i nā mea hoʻomaʻemaʻe hoʻomaʻemaʻe kaʻa ʻo ia ke ala maikaʻi loa e hoʻomalu ai i ka haumia o ka pau.ʻO Nano cerium zirconium composite oxides he mea nui i ka hoʻomaikaʻi ʻana i ka maikaʻi o ka hoʻomaʻemaʻe kinoea huelo.
No.5 Nā mea hana nano ʻē aʻe
01. Laka honua nano ceramic mea
Hiki i ka Nano ceramic powder ke hoʻemi nui i ka mahana sintering, ʻo ia ka 200 ℃ ~ 300 ℃ haʻahaʻa ma mua o ka pauka non nano ceramic me ka hoʻohui like.ʻO ka hoʻohui ʻana i ka nano CeO2 i nā ceramics hiki ke hōʻemi i ka mahana sintering, kaohi i ka ulu ʻana o ka lattice, a hoʻomaikaʻi i ka nui o nā seramika.Hoʻohui ʻana i nā mea ʻeleʻele koʻikoʻi e like meY2O3, CeO2, or La2O3 to ZrO2hiki ke pale i ka hoʻololi ʻana o ka pae wela a me ka embrittlement o ZrO2, a loaʻa i ka ZrO2 phase transformation toughened ceramic structural material.
ʻO nā seramika uila (nā mea ʻike uila, nā mea PTC, nā mea microwave, nā capacitors, thermistors, etc.) i hoʻomākaukau ʻia me ka ultrafine a i ʻole nanoscale CeO2, Y2O3,Nd2O3, Sm2O3, a me nā mea ʻē aʻe ua hoʻomaikaʻi i nā waiwai uila, wela, a me ka paʻa.
ʻO ka hoʻohui ʻana i nā mea hoʻohui photocatalytic i hoʻāla ʻia i ka honua i ka ʻano glaze hiki ke hoʻomākaukau i nā ceramics antibacterial honua.
02.Rare honua nano lahilahi mea kiʻiʻoniʻoni
Me ka hoʻomohala ʻana i ka ʻepekema a me ka ʻenehana, ke piʻi nui nei nā koi hana no nā huahana, e koi ana i ka ultra-fine, ultra-thin, ultra-high density, a me ka ultra-filling o nā huahana.I kēia manawa, aia ʻekolu mau ʻāpana nui o nā kiʻiʻoniʻoni nano honua laha ʻole i hoʻomohala ʻia: nā kiʻiʻoniʻoni nano paʻakikī honua, nā kiʻiʻoniʻoni nano oxide honua ʻole, a me nā kiʻiʻoniʻoni nano alloys.Pāʻani koʻikoʻi nā kiʻiʻoniʻoni nano honua ma ka ʻoihana ʻike, catalysis, ikehu, ka lawe ʻana, a me ka lāʻau lapaʻau ola.
Ka hopena
He ʻāina koʻikoʻi ʻo Kina i nā waiwai o ka honua.ʻO ka hoʻomohala ʻana a me ka hoʻohana ʻana i nā nanomaterials honua kahi ala hou e hoʻohana pono ai i nā kumuwaiwai honua.I mea e hoʻonui ai i ka laulā noi o ka honua laha a hoʻoikaika i ka hoʻomohala ʻana i nā mea hana hou, pono e hoʻokumu ʻia kahi ʻōnaehana theoretical hou i ka ʻenehana waiwai e hoʻokō i nā pono noiʻi ma ka nanoscale, e hana i nā nanomaterials honua i ʻoi aku ka maikaʻi o ka hana, a hana i ka puka. nā waiwai a me nā hana hou e hiki ai.
Ka manawa hoʻouna: Mei-29-2023