Hoʻolauna ʻia nā mea nano kalapona
No ka manawa lōʻihi, ʻike wale ka poʻe he ʻekolu carbon allotropes: daimana, graphite a me carbon amorphous.Eia nō naʻe, i loko o nā makahiki he ʻekolu i hala iho nei, ua ʻike mau ʻia mai nā fullerenes zero-dimensional, hoʻokahi-dimensional carbon nanotubes, a hiki i ʻelua-dimensional graphene, ke hoʻomau nei nā nanomaterial hou i ka manaʻo o ka honua.Hiki ke hoʻokaʻawale ʻia nā nanomaterial carbon i ʻekolu mau ʻāpana e like me ke kiʻekiʻe o ke kaohi ʻana o ka nanoscale ma ko lākou mau spatial ana: zero-dimensional, one-dimensional a me ʻelua-dimensional carbon nanomaterials.
ʻO nā nanomaterials 0-dimensional e pili ana i nā mea i loko o ka nanometer scale i ʻekolu-dimensional space, e like me nā nano-particles, atomic clusters a me nā kiko quantum.Hoʻohui pinepine ʻia lākou me kahi helu liʻiliʻi o nā mana a me nā mole.Nui nā ʻano kalapona kalapona ʻole, e like me ka carbon black, nano-diamond, nano-fullerene C60, carbon-coated nano-metal particles.
I ka hikiwawe o kaC60ua ʻike ʻia, ua hoʻomaka ka poʻe kemika e ʻimi i ka hiki ke hoʻohana ʻia i ka catalyst.I kēia manawa, ʻo nā fullerenes a me kā lākou derivatives i ke kahua o nā mea catalytic ka mea nui i nā ʻano ʻekolu:
(1) fullerenes pololei ma ke ano he catalyst;
2
(3) No ka hoʻohana ʻana i nā Fullerenes a me kā lākou Derivatives i nā Catalysts Heterogeneous.
ʻO nā ʻāpana nano-metala i uhi ʻia i ke kalapona he ʻano hou o ka ʻano nano-carbon-metal composite.Ma muli o ka palena o ka pūpū kalapona a me ka hopena pale, hiki ke hoʻopaʻa ʻia nā ʻāpana metala i kahi wahi liʻiliʻi a hiki ke noho mau nā nanoparticles metala i uhi ʻia i loko ma lalo o ka mana o ke kaiapuni o waho.ʻO kēia ʻano hou o nā nanomaterial carbon-metal zero-dimensional he mau ʻano optoelectronic kūʻokoʻa a loaʻa kahi ākea ākea o nā noi i ka lāʻau lapaʻau, nā mea hoʻopaʻa hoʻopaʻa magnetic, nā mea pale electromagnetic, nā mea uila uila lithium a me nā mea catalytic.
Hoʻokahi-dimensional carbon nanomaterials 'o ia hoʻi ka neʻe manuahi ʻana o nā electrons i hoʻokahi ʻaoʻao non-nanoscale wale nō a he laina laina ka neʻe.ʻO nā ʻelele maʻamau o nā mea kalapona hoʻokahi-dimensional he carbon nanotubes, carbon nanofibers a me nā mea like.ʻO ka ʻokoʻa ma waena o nā mea ʻelua hiki ke hoʻokumu ʻia ma ke anawaena o ka mea e ʻike ai, hiki ke hoʻokumu ʻia ma ke ʻano o ka graphitization o ka mea e wehewehe ʻia.E like me ke anawaena o ka mea mea 'o ia hoʻi: ke anawaena D ma lalo o 50nm, ka hale hollow kūloko i mea maʻamau i kapa 'ia e like me kalapona nanotubes, a me ke anawaena i loko o ka laulā o 50-200nm, ka hapanui e ka multi-layer graphite pepa curled, me ʻAʻole ʻike pinepine ʻia nā hale Hollow i kapa ʻia he carbon nanofibers.
E like me ke kiʻekiʻe o ka graphitization o ka mea, ʻoi aku ka maikaʻi o ka wehewehe ʻana i ka graphitization, ʻoi aku ka maikaʻi o ka orientation o kagraphiteUa kapa ʻia ʻo carbon nanotubes, ʻoiai ʻo ka degere o ka graphitization he haʻahaʻa a ʻaʻole hoʻi i ka graphitization structure, ʻaʻole i hoʻonohonoho ʻia ka hoʻonohonoho ʻana o nā pepa graphite, nā mea me ka hollow structure i waena a hiki i kanā nanotubes kalapona pā lehulehuua maheleia a pau i carbon nanofibers.ʻOiaʻiʻo, ʻaʻole ʻike ʻia ka ʻokoʻa ma waena o nā nanotubes carbon a me nā nanofiber carbon i nā palapala like ʻole.
I ko mākou manaʻo, me ka nānā ʻole i ke ʻano o ka graphitization o carbon nanomaterials, hoʻokaʻawale mākou ma waena o nā nanotubes carbon a me nā nanofibers carbon ma muli o ka hele ʻana a i ʻole ka ʻole o kahi hale hollow.ʻO ia hoʻi, ʻo nā nanomaterial carbon dimensional one-dimensional e wehewehe ana i kahi ʻano hollow he carbon nanotubes ʻaʻohe hollow structure A i ʻole ʻike ʻole ʻia ka hollow structure one-dimensional carbon nanomaterials carbon nanofibers.
Nā nanomaterial kalapona ʻelua ʻāpana: He ʻelele ʻo Graphene no nā nanomaterial kalapona ʻelua.Ua wela loa nā mea hana ʻelua-dimensional i hōʻike ʻia e ka graphene i nā makahiki i hala iho nei.Hōʻike kēia mea hōkū i nā waiwai kūʻokoʻa i ka mechanics, ka uila, ka wela a me ka magnetism.Ma ke kumu, ʻo ka graphene ka ʻāpana kumu e hana ai i nā mea kalapona ʻē aʻe: hoʻopaʻa ʻia i ka fullerenes zero-dimensional, curls i hoʻokahi-dimensional carbon nanotubes, a hoʻopaʻa ʻia i loko o nā graphite ʻekolu.
I ka hōʻuluʻulu manaʻo, ua lilo nā carbon nanomaterials i kumuhana wela i ka nanoscience a me ka noiʻi ʻenehana a ua holomua ka noiʻi koʻikoʻi.Ma muli o ko lākou kūlana kūikawā a me nā waiwai kino a me nā kemika maikaʻi loa, ua hoʻohana nui ʻia nā nanomaterial carbon i nā mea pākaukau lithium-ion, nā mea optoelectronic , Catalyst carriers, chemical and biological sensors, hydrogen storage material a me nā mea supercapacitor a me nā mea ʻē aʻe o ka hopohopo.
ʻO Kina Hongwu Micro-Nano Technology Co., Ltd - ka mea mua o ka hana ʻana i nā mea nano-carbon, ʻo ia ka mea hana mua o ka hale o nā nanotubes kalapona a me nā mea nano-carbon ʻē aʻe no ka hana ʻoihana a me ka noi ʻana i ka maikaʻi o ka honua, ka hana ʻana o nā nano- ua lawe ʻia nā mea kalapona i nā wahi a pau o ka honua, maikaʻi ka pane.Ma muli o ka papahana hoʻomohala aupuni a me ka hoʻokele modular, pili ʻo Hongwu Nano i ka mākeke, hoʻokele ʻenehana, e hoʻokō i nā koi kūpono o nā mea kūʻai aku e like me kāna huakaʻi, a hoʻoikaika i ka hoʻoikaika ʻana i ka ikaika o ka ʻoihana hana ʻo Kina.
Ka manawa hoʻouna: Jul-13-2020