Gabatarwa Nanomaterials Carbon
Na dogon lokaci, mutane kawai sun san cewa akwai nau'ikan carbon allotropes guda uku: lu'u-lu'u, graphite da carbon amorphous.Duk da haka, a cikin shekaru talatin da suka gabata, daga sifili-dimensional fullerenes, carbon nanotubes mai-girma guda ɗaya, zuwa graphene mai girma biyu an ci gaba da ganowa, sabon carbon nanomaterials na ci gaba da jan hankalin duniya.Ana iya rarraba nanomaterials na carbon zuwa nau'i uku bisa ga matakin nanoscale takura akan girman su: sifili, mai girma ɗaya da nau'i biyu na carbon nanomaterials.
0-dimensional nanomaterials suna nufin kayan da ke cikin ma'aunin nanometer a cikin sarari mai girma uku, kamar nano-barbashi, gungu na atomic da ɗigon ƙima.Yawanci suna kunshe da ƙananan adadin atom da kwayoyin halitta.Akwai sifili-girma carbon nano-materials, irin su carbon baki, nano-lu'u-lu'u, nano-fullerene C60, carbon-rufi nano-karfe barbashi.
Da zaran daC60an gano shi, masana kimiyya sun fara bincika yiwuwar aikace-aikacen su ga mai kara kuzari.A halin yanzu, fullerenes da abubuwan da suka samo asali a fagen kayan aikin catalytic galibi sun haɗa da abubuwa uku masu zuwa:
(1) fullerenes kai tsaye a matsayin mai kara kuzari;
(2) fullerenes da abubuwan da suka samo asali a matsayin mai kara kuzari;
(3) Aikace-aikacen Fullerenes da Abubuwan da suka samo asali a cikin Maɓalli masu ban sha'awa.
Barbashi na nano-karfe mai rufi sabon nau'in sifili ne na nano-carbon-metal composite.Saboda ƙayyadaddun harsashi na carbon da tasirin kariya, za'a iya kulle ɓangarorin ƙarfe a cikin ƙaramin sarari kuma ƙarfe nanoparticles ɗin da aka rufa a ciki zai iya kasancewa da ƙarfi a ƙarƙashin rinjayar yanayin waje.Wannan sabon nau'in sifili-dimensional carbon-metal nanomaterials yana da kaddarorin optoelectronic na musamman kuma yana da nau'ikan aikace-aikace masu yawa a cikin likitanci, kayan rikodin maganadisu, kayan kariya na lantarki, kayan lantarki na baturi na lithium da kayan haɓakawa.
Nanomaterials na carbon mai girma ɗaya yana nufin cewa electrons suna motsawa cikin yardar kaina a cikin alkibla ɗaya kawai mara nano kuma motsi yana da layi.Wakilai na yau da kullun na kayan aikin carbon guda ɗaya sune carbon nanotubes, carbon nanofibers da makamantansu.Bambanci tsakanin su biyun na iya dogara ne akan diamita na kayan don rarrabewa, kuma ana iya dogara da matakin graphitization na kayan da za a bayyana.Dangane da diamita na kayan yana nufin cewa: diamita D da ke ƙasa da 50nm, tsarin da ke cikin rami yawanci ana kiransa da carbon nanotubes, da diamita a cikin kewayon 50-200nm, galibi ta takaddar graphite multi-Layer curled, tare da babu bayyanannen tsarin da ake kira Carbon nanofibers.
Dangane da matakin graphitization na kayan, ma'anar tana nufin graphitization ya fi kyau, daidaitawargraphitetakardar daidaitacce a layi daya zuwa ga tube axis ana kiransa carbon nanotubes, yayin da mataki na graphitization ne low ko babu graphitization tsarin , A tsari na graphite zanen gado ne disorganized, da kayan da m tsarin a tsakiya da kuma ko daMulti-bangon carbon nanotubesduk an raba su zuwa carbon nanofibers.Tabbas, bambanci tsakanin carbon nanotubes da carbon nanofibers ba a bayyane yake ba a cikin takardu daban-daban.
A ra'ayinmu, ba tare da la'akari da matakin graphitization na carbon nanomaterials, mun bambanta tsakanin carbon nanotubes da carbon nanofibers dangane da kasancewar ko rashi na wani m tsari.Wato, nau'ikan nau'ikan carbon nanomaterials masu girma guda ɗaya waɗanda ke ma'anar tsari mara kyau su ne carbon nanotubes waɗanda ba su da hurumin tsari Ko kuma fataccen tsari ba a bayyane yake ba na carbon nanomaterials carbon nanofibers.
Carbon nanomaterials masu girma biyu: Graphene wakilin nanomaterials mai girma biyu.Kayan aiki masu girma biyu waɗanda graphene ke wakilta sun kasance masu zafi sosai a cikin 'yan shekarun nan.Wannan kayan tauraro yana nuna abubuwan ban mamaki na musamman a cikin injiniyoyi, wutar lantarki, zafi da maganadisu.A tsari, graphene shine ainihin naúrar da ke samar da sauran kayan carbon: yana jujjuyawa har zuwa cikar sifili mai girman sifili, yana karkata zuwa cikin nanotubes na carbon nanotubes mai girma ɗaya, kuma yana tarawa zuwa graphite mai girma uku.
A taƙaice, abubuwan nanomaterials na carbon sun kasance batutuwa masu zafi a cikin nanoscience da bincike na fasaha kuma sun sami ci gaban bincike mai mahimmanci.Saboda tsarin su na musamman da kyawawan kaddarorin jiki da sinadarai, ana amfani da nanomaterials na carbon a ko'ina a cikin kayan batirin lithium-ion, kayan optoelectronic, masu ɗaukar kuzari, sinadarai da na'urori masu auna halittu, kayan ajiyar hydrogen da kayan supercapacitor da sauran abubuwan damuwa.
China Hongwu Micro-Nano Technology Co., Ltd - farkon masana'antu na nano-carbon kayan, shi ne na farko gida manufacturer na carbon nanotubes da sauran Nano-carbon kayan for masana'antu samar da aikace-aikace na duniya manyan ingancin, samar da Nano- An fitar da kayan carbon zuwa Duk faɗin duniya, amsa yana da kyau.Dangane da dabarun ci gaban kasa da sarrafa na'urorin zamani, Hongwu Nano na bin tsarin kasuwa, da fasahohi, don biyan bukatun abokan ciniki a matsayin manufarsa, da yin kokari ba tare da bata lokaci ba don kara karfin masana'antun kasar Sin.
Lokacin aikawa: Yuli-13-2020