Monga woyimira kwambiri mbali imodzi nanomaterial,ma nanotube okhala ndi khoma limodzi(SWCNTs) ali ndi zinthu zambiri zakuthupi ndi zamankhwala.Ndi kafukufuku wozama wopitilira muyeso woyambira komanso kugwiritsa ntchito ma nanotubes okhala ndi mipanda amodzi, awonetsa chiyembekezo chogwira ntchito m'magawo ambiri, kuphatikiza zida zamagetsi za nano, zida zopangira zinthu zambiri, zosungira mphamvu zamagetsi, zothandizira ndi zonyamula zonyamula, masensa, gawo. emitters, mafilimu conductive, bio-nano zipangizo, etc., ena akwaniritsa kale ntchito mafakitale.

Makina opangira ma nanotube okhala ndi mipanda amodzi

Ma atomu a kaboni a carbon nanotubes okhala ndi khoma limodzi amaphatikizidwa ndi ma CC amphamvu kwambiri.Zimaganiziridwa kuchokera kumapangidwe kuti ali ndi mphamvu zambiri za axial, bremsstrahlung ndi zotanuka modulus.Ofufuza anayeza kuchuluka kwa kugwedezeka kwa malekezero aulere a CNTs ndipo adapeza kuti modulus ya Young ya carbon nanotubes imatha kufika ku 1Tpa, yomwe ili pafupifupi yofanana ndi diamondi ya Young, yomwe ili pafupifupi 5 nthawi yachitsulo.SWCNTs ndi apamwamba kwambiri axial mphamvu, ndi za 100 nthawi chitsulo;mphamvu zotanuka za carbon nanotubes wokhala ndi khoma limodzi ndi 5%, mpaka 12%, zomwe zimakhala pafupifupi 60 kuposa zitsulo.CNT ili ndi kulimba kwambiri komanso kupindika.

Ma carbon nanotubes okhala ndi khoma limodzi ndiwowonjezera bwino kwambiri pazinthu zophatikizika, zomwe zimatha kupatsa mphamvu zamakina kuzinthu zophatikizika, kotero kuti zida zophatikizika ziwonetse mphamvu, kulimba, kulimba komanso kukana kutopa zomwe alibe poyambirira.Pankhani ya nanoprobes, ma nanotubes a carbon atha kugwiritsidwa ntchito kupanga nsonga zofufuzira zokhala ndi malingaliro apamwamba komanso kuzindikira mozama.

Mphamvu zamagetsi za single-walled carbon nanotubes

Kuzungulira kwa tubular kwa ma nanotubes okhala ndi mipanda amodzi kumatsimikizira mphamvu zake zapadera komanso zabwino kwambiri zamagetsi.Kafukufuku wofufuza wasonyeza kuti chifukwa cha kayendedwe ka ballistic kwa ma elekitironi mu carbon nanotubes, mphamvu yonyamulira pakali pano ndi yoposa 109A / cm2, yomwe ndi nthawi 1000 kuposa yamkuwa yokhala ndi conductivity yabwino.Kuzungulira kwa carbon nanotube yokhala ndi mipanda imodzi ndi pafupifupi 2nm, ndipo kuyenda kwa ma elekitironi mmenemo kumakhala ndi khalidwe la quantum.Kukhudzidwa ndi quantum physics, monga momwe mawiri ndi ma spinal mode a SWCNT asinthira, kusiyana kwa mphamvu kwa gulu la valence ndi gulu la conduction kungasinthidwe kuchokera pafupifupi ziro kufika ku 1eV, ma conductivity ake akhoza kukhala zitsulo ndi semiconducting, kotero conductivity ya carbon nanotubes imatha. kusinthidwa ndi kusintha chirality ngodya ndi m'mimba mwake.Pakalipano, palibe chinthu china chomwe chapezeka kuti chili ngati ma nanotube a carbon nanotubes omwe angathenso kusintha kusiyana kwa mphamvu mwa kungosintha dongosolo la maatomu.

Mpweya wa carbon nanotubes, monga graphite ndi diamondi, ndi oyendetsa bwino kwambiri.Monga ma conductivity awo amagetsi, ma carbon nanotubes alinso ndi ma axial matenthedwe madutsidwe abwino kwambiri ndipo ndi zida zabwino zopangira matenthedwe.Mawerengedwe ongoganiza amasonyeza kuti mpweya nanotube (CNT) kutentha conduction dongosolo ali lalikulu avareji ufulu njira phononi, phononi akhoza bwino opatsirana pamodzi chitoliro, ndi axial matenthedwe madutsidwe ndi za 6600W/m•K kapena kuposa, amene ali ofanana ndi The matenthedwe madutsidwe wa single wosanjikiza graphene.Ofufuzawo anayeza kuti kutentha kwa chipinda cha chipinda cha carbon nanotube yokhala ndi khoma limodzi (SWCNT) kuli pafupi ndi 3500W/m•K, yomwe ndi yaikulu kwambiri kuposa ya diamondi ndi graphite (~ 2000W/m•K).Ngakhale kusinthana kwa kutentha kwa carbon nanotubes kumbali ya axial ndikokwera kwambiri, kusinthana kwawo kutentha komwe kumapita kumtunda kumakhala kochepa, ndipo ma carbon nanotubes amachepetsedwa ndi mawonekedwe awo a geometric, ndipo kukula kwawo kuli pafupifupi ziro, kotero ngakhale ambiri. mpweya nanotubes m'mitolo mu mtolo, kutentha si anasamutsa mpweya nanotube wina.

Zabwino kwambiri matenthedwe madutsidwe a single-mipanda mpweya nanotubes(SWCNTs) amaonedwa kuti zinthu zabwino kwambiri kukhudzana pamwamba ma radiator m'badwo wotsatira, amene angawapange matenthedwe madutsidwe wothandizira kompyuta CPU Chip radiators m'tsogolo.Mpweya wa carbon nanotube CPU radiator, womwe kukhudzana kwake ndi CPU kumapangidwa ndi carbon nanotubes, imakhala ndi matenthedwe ka 5 kuposa omwe amagwiritsidwa ntchito mkuwa.Nthawi yomweyo, ma carbon nanotubes okhala ndi mipanda amodzi amakhala ndi chiyembekezo chogwiritsa ntchito bwino pazambiri zopangira matenthedwe ndipo atha kugwiritsidwa ntchito m'zigawo zosiyanasiyana zotentha kwambiri monga injini ndi maroketi.

Kuwala katundu wa single-mipanda mpweya nanotubes

Kapangidwe kake ka mipanda yokhala ndi mipanda ya carbon nanotubes yapanga mawonekedwe ake apadera a kuwala.Ma Raman spectroscopy, fluorescence spectroscopy ndi ultraviolet-yowoneka-pafupi ndi infrared spectroscopy akhala akugwiritsidwa ntchito kwambiri pofufuza za mawonekedwe ake.Raman spectroscopy ndiye chida chomwe chimagwiritsidwa ntchito kwambiri pozindikira ma nanotube okhala ndi khoma limodzi.Makhalidwe a vibration a single-walled carbon nanotubes ring breathing vibration mode (RBM) amawoneka pafupifupi 200nm.RBM itha kugwiritsidwa ntchito kudziwa mawonekedwe a ma nanotubes a kaboni ndikuwona ngati chitsanzocho chili ndi ma nanotubes okhala ndi khoma limodzi.

Magnetic katundu wa single-walled carbon nanotubes

Carbon nanotubes ali ndi maginito apadera, omwe ndi anisotropic ndi diamagnetic, ndipo amatha kugwiritsidwa ntchito ngati zida zofewa za ferromagnetic.Ma nanotubes ena okhala ndi mipanda amodzi okhala ndi mawonekedwe apadera amakhalanso ndi superconductivity ndipo amatha kugwiritsidwa ntchito ngati mawaya apamwamba kwambiri.

Kusungirako kwa gasi kwa carbon nanotubes yokhala ndi khoma limodzi

Maonekedwe amtundu umodzi wa tubular ndi chiŵerengero chachikulu cha kutalika kwa mamita awiri cha carbon nanotubes chokhala ndi mipanda chimapangitsa kuti dzenje la chubu likhale ndi mphamvu ya capillary, kotero kuti imakhala ndi kutsatsa kwapadera, kusungirako gasi ndi kulowetsamo.Malinga ndi malipoti omwe alipo kale, ma carbon nanotubes okhala ndi khoma limodzi ndi zida zotsatsa zomwe zimakhala ndi mphamvu yayikulu kwambiri yosungira ma haidrojeni, kupitilira zida zina zachikhalidwe zosungira ma haidrojeni, ndipo zithandizira kulimbikitsa kukula kwa ma cell amafuta a haidrojeni.

Chothandizira cha ma single-walled carbon nanotubes

Ma carbon nanotubes okhala ndi khoma limodzi ali ndi madulidwe abwino kwambiri amagetsi, kukhazikika kwamankhwala komanso malo akulu enieni (SSA).Atha kugwiritsidwa ntchito ngati chothandizira kapena chonyamulira chothandizira, ndipo amakhala ndi zochitika zapamwamba kwambiri.Ziribe kanthu mu catalysis yachikhalidwe, kapena mu electrocatalysis ndi photocatalysis, ma carbon nanotubes okhala ndi khoma limodzi awonetsa kuthekera kwakukulu kogwiritsa ntchito.

Guangzhou Hongwu amapereka apamwamba ndi okhazikika khalidwe limodzi mipanda mpweya nanotubes ndi utali wosiyana, chiyero (91-99%), functionalized mitundu.Komanso kubalalitsidwa akhoza makonda.