Qhov sib txawv tseem ceeb ntawm fullerene thiab carbon nanotubes yog tias fullerene yog ib qho allotrope ntawm cov pa roj carbon monoxide uas tuaj yeem muaj nyob hauv cov duab sib txawv thiab ntau thiab tsawg, whereas carbon nanotubes yog hom fullerene nrog cov duab cylindrical.
Muaj ntau hom allotropes ntawm carbon, xws li pob zeb diamond, graphite, thiab fullerene. Tag nrho cov no yog cov qauv tshuaj ua los ntawm cov pa roj carbon atoms xwb.
YFullerene yog dab tsi?
Fullerene yog ib hom allotrope ntawm cov pa roj carbon molecules ntawm carbon atoms sib koom ua ke ntawm ib leeg thiab ob daim ntawv cog lus los tsim ib qho kaw lossis ib nrab kaw mesh uas muaj fused rings ntawm 5 lossis 7 atoms. Cov molecule no tuaj yeem tshwm sim ua hollow spheres, ellipsoids, hlab, lossis lwm yam duab thiab ntau thiab tsawg.
Yog tias lub fullerene yog ib qho kaw mesh topology, nws yog qhia tsis raws cai los ntawm cov qauv empirical Cn, qhov twg n yog tus naj npawb ntawm carbon atoms. Qee zaum, qee qhov txiaj ntsig rau n sawv cev ntau dua ib qho isomer. Cov npe nrov tshaj plaws ntawm pab pawg no yog buckminsterfullerene. Nws tau muaj npe tom qab Buckminster Fuller. Yog li ntawd, kaw fullerenes tseem hu ua buckyballs, uas zoo li cov khoom sib xws ntawm cov koom haum football.
Daim duab 01: Fullerene
Thaum xav txog cov khoom ntawm fullerene, txhua cov pa roj carbon atom txuas nrog tsuas yog peb lub atoms nyob sib ze, thiab cov ntawv cog lus yog cov sib xyaw ntawm ib qho thiab ob qho kev sib cog lus. Lub hybridization ntawm cov pa roj carbon atoms yuav muab tau raws li sp2. Raws li qee qhov kev tshawb fawb tshawb fawb, qhov reactivity ntawm fullerene tuaj yeem nce ntxiv los ntawm kev txuas cov pab pawg ua haujlwm rau ntawm qhov chaw.
Cov pa roj carbon Nanotubes yog dab tsi?
Carbon nanotubes, lossis tsuas yog nanotubes, yog ib hom raj ua los ntawm carbon atoms, thiab cov hlab no muaj cov diameters feem ntau ntsuas hauv nanometers. Muaj ob hom nanotubes ua ib phab ntsa carbon nanotubes (SWCNTs) thiab ntau phab ntsa carbon nanotubes (MWCNTs).
SWCNTs tuaj yeem piav qhia tias yog allotropes ntawm carbon uas yog nruab nrab ntawm fullerene thiab tiaj graphene. Peb tuaj yeem ua qhov zoo tshaj plaws ntawm cov nanotubes li kev txiav tawm los ntawm 2D hexagonal lattice ntawm carbon atoms uas tau dov raws li ib qho ntawm Bravais lattice vectors ntawm hexagonal lattice, tsim lub tog raj kheej hollow.
Daim duab 02: Ib Phab Ntsa Carbon Nanotubes
Ntawm qhov tod tes, MWCNTs muaj cov nested ib leeg-phab ntsa carbon nanotubes uas tsis muaj zog ua ke los ntawm Van der Waals kev sib cuam tshuam hauv cov ntoo zoo li lub nplhaib. Qee zaum, peb xa mus rau lawv li ob-thiab triple-phab ntsa carbon nanotubes.
Carbon nanotubes qhia tau zoo kawg nkaus hluav taws xob conductivity. Lawv kuj muaj lub zog tensile zoo heev thiab thermal conductivity. Qhov no yog vim lub nanostructure thiab lub zog ntawm cov ntawv cog lus ntawm carbon atoms. Tsis tas li ntawd, peb tuaj yeem hloov kho cov nanotubes.
Qhov txawv ntawm Fullerene thiab Carbon Nanotubes yog dab tsi?
Fullerene yog ib qho allotrope ntawm carbon. Nws tuaj yeem tshwm sim hauv cov duab sib txawv thiab qhov ntau thiab tsawg, xws li cov duab cylindrical, cov duab kheej kheej, cov duab ellipsoid, thiab lwm yam. Qhov sib txawv tseem ceeb ntawm fullerene thiab carbon nanotubes yog tias fullerene yog ib qho allotrope ntawm cov pa roj carbon uas muaj peev xwm muaj nyob hauv cov duab sib txawv thiab ntau thiab tsawg, whereas carbon nanotube yog ib hom fullerene uas muaj cylindrical zoo. Feem ntau cov qauv ntawm fullerene yog ib tug kheej kheej buckyball qauv, uas muaj ib tug kaw los yog ib feem kaw mesh muaj fused rings ntawm 5 los yog 7 atoms, thaum carbon nanotubes muaj raj zoo li cov qauv nyob rau hauv uas txhua carbon atom muaj peb covalent daim ntawv cog lus nrog nyob sib ze atoms.
Summary – Fullerene vs Carbon Nanotubes
Carbon yog ib hom tshuaj lom neeg ntau hauv ntiaj teb. Nws tuaj yeem muaj nyob hauv ntau hom hu ua allotropes ntawm carbon. Fullerene kuj yog ib hom allotrope ntawm carbon. Qhov sib txawv tseem ceeb ntawm fullerene thiab carbon nanotubes yog tias fullerene yog ib qho allotrope ntawm cov pa roj carbon monoxide uas tuaj yeem muaj nyob hauv cov duab sib txawv thiab qhov ntau thiab tsawg, whereas carbon nanotubes yog hom fullerene nrog cov duab cylindrical.
