Qhov sib txawv tseem ceeb ntawm cov pa roj carbon nanotubes thiab graphene yog cov pa roj carbon nanotubes qhia cov khoom siv hlau lossis cov khoom siv semiconducting, whereas graphene qhia qhov xwm txheej semimetal.
Carbon nanotubes yog ib hom raj uas tsim los ntawm carbon atoms, thiab txoj kab uas hla ntawm cov hlab no feem ntau ntsuas nrog nanometer scale. Graphene yog ib qho allotrope ntawm cov pa roj carbon monoxide uas tshwm sim ua ob sab.
Cov pa roj carbon Nanotubes yog dab tsi?
Carbon nanotubes yog ib hom raj uas tsim los ntawm carbon atoms, thiab txoj kab uas hla ntawm cov hlab no feem ntau ntsuas nrog nanometer scale. Cov pa roj carbon nanotube feem ntau yog hais txog ib phab ntsa carbon nanotubes, uas yog ib hom allotrope ntawm cov pa roj carbon uas muaj cov khoom nruab nrab rau fullerene thiab tiaj tus graphene.
Carbon Nanotubes Cov Khoom thiab Kev Siv
Muaj cov khoom sib txawv ntawm cov pa roj carbon nanotubes, suav nrog cov kab sib txawv ntawm xoom mus rau 2 eV, nws tus cwj pwm zoo ntawm cov hluav taws xob conductivity, siab tensile zog, xws li hlau los yog semiconducting xwm raws tubular axis, muaj txiaj ntsig nqus, photoluminescence, thiab Raman spectroscopic zog, thermal conductance zoo heev, qhov tshwm sim ntawm crystallographic defects, thiab lwm yam.
Thaum xav txog cov ntawv thov ntawm cov khoom siv no, nws yog ib qho tseem ceeb hauv daim ntawv ua cov fibers sib xyaw hauv polymers los txhim kho cov khoom siv hluav taws xob, thermal thiab hluav taws xob, tsim cov "Gecko daim kab xev", cov lus qhia rau atomic force microscope probes, ua raws li scaffolding rau daim ntawv cog lus kev loj hlob thaum lub sij hawm cov ntaub so ntswg engineering, thiab lwm yam.
Graphene yog dab tsi?
Graphene yog ib qho allotrope ntawm cov pa roj carbon monoxide uas tshwm sim ua ob sab, uas tuaj yeem hu ua "ob-seem hexagonal lattice". Ntxiv mus, nws yog infinitely loj aromatic molecule. Muaj ntau txoj hauv kev ntawm kev tsim cov graphene, uas suav nrog cov txheej txheem siv tshuab, sib cais cov pa roj carbon monolayer, cov txheej txheem tshuaj, tshuaj vapor deposition, carbon dioxide txo, supersonic spray method, laser txoj kev, ion implantation, thiab CMOS-tshaj graphene ntau lawm.
Graphene Cov Khoom thiab Siv
Cov khoom siv no muaj cov khoom tshwj xeeb uas suav nrog cov qauv muaj zog ntawm graphene piv rau nws cov tuab uas muaj zog dua li cov hlau, muaj peev xwm ua kom sov thiab hluav taws xob zoo, muaj peev xwm kub hnyiab ntawm qhov kub thiab txias, ze rau qhov pom tseeb., cov txheej txheem nyuaj ntawm graphene qauv, thiab nonlinear diamagnetism. Ntxiv mus, graphene muaj quantum oscillations loj. Cov pa roj carbon atoms ntawm cov npoo ntawm daim ntawv graphene muaj cov tshuaj reactivity tshwj xeeb, thiab cov teeb meem uas tshwm sim hauv nws daim ntawv qauv tuaj yeem txhim kho cov tshuaj reactivity. Tsis tas li ntawd, cov nplooj ntawv graphene no nyiam pawg, tsim cov qauv graphite.
Txhua lub atom hauv daim ntawv graphene txuas nrog nws peb cov neeg nyob ze ze tshaj plaws los ntawm cov tshuaj sigma cov ntawv cog lus thiab tseem txhawb nqa ib qho ntawm nws cov khoom siv hluav taws xob rau cov khoom siv hluav taws xob uas muaj nyob nruab nrab ntawm tag nrho cov qauv ntawv. Hom kab hluav taws xob no ua rau cov qauv graphene ib qho semimetal muaj cov khoom siv hluav taws xob txawv txawv uas tuaj yeem piav qhia siv cov kev xav rau cov khoom tsis sib haum xeeb.
Daim duab 01: Ib txheej Graphene Oxide Kev Kho Mob Kub Kub Kub
Muaj cov ntawv thov sib txawv ntawm graphene, uas suav nrog kev siv nws ua cov pob tshab thiab hloov tau yooj yim uas tuaj yeem ua lub luag haujlwm tseem ceeb hauv cov khoom siv / khoom siv, (xws li lub hnub ci, lub teeb-emitting diodes, kov vaj huam sib luag, thiab lub qhov rais ntse. los yog xov tooj.
Qhov txawv ntawm Carbon Nanotubes thiab Graphene yog dab tsi?
Carbon nanotubes yog ib hom raj uas tsim los ntawm carbon atoms, thiab txoj kab uas hla ntawm cov hlab no feem ntau ntsuas nrog ib nanometer nplai. Graphene yog ib qho allotrope ntawm cov pa roj carbon monoxide uas tshwm sim ua ob sab. Qhov sib txawv tseem ceeb ntawm cov pa roj carbon nanotubes thiab graphene yog cov pa roj carbon nanotubes qhia cov khoom siv hlau lossis cov khoom siv semiconducting, qhov graphene qhia tau hais tias muaj qhov xwm txheej semimetal.
Cov infographic hauv qab no qhia txog qhov sib txawv ntawm cov pa roj carbon nanotubes thiab graphene hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Carbon Nanotubes vs Graphene
Carbon nanotubes yog ib hom raj uas tsim los ntawm carbon atoms, thiab txoj kab uas hla ntawm cov hlab no feem ntau ntsuas nrog ib nanometer nplai. Graphene yog ib qho allotrope ntawm cov pa roj carbon monoxide uas tshwm sim ua ob sab. Qhov sib txawv tseem ceeb ntawm cov pa roj carbon nanotubes thiab graphene yog cov pa roj carbon nanotubes qhia cov khoom siv hlau lossis cov khoom siv semiconducting thaum graphene qhia qhov xwm txheej semimetal.
