Qhov sib txawv tseem ceeb ntawm graphene thiab graphene oxide yog tias graphene yog ib yam khoom ua los ntawm cov pa roj carbon atoms sib koom ua ke hauv cov qauv rov ua dua ntawm hexagons, whereas graphene oxide yog ib daim ntawv oxidized ntawm graphene uas yog laced nrog pab pawg muaj oxygen. atoms.
Graphene tuaj yeem piav qhia tias yog ib qho allotrope ntawm cov pa roj carbon uas muaj nyob rau hauv daim ntawv ob sab. Graphene oxide yog ib daim ntawv monomolecular los ntawm graphite oxide. Hauv kab lus no, peb yuav muab piv rau graphene nrog graphene oxide.
Graphene yog dab tsi?
Graphene yog ib qho allotrope ntawm cov pa roj carbon uas muaj nyob rau hauv daim ntawv ob sab, uas yog lub npe hu ua ob-seem hexagonal lattice.” Graphene feem ntau yog ib qho loj heev uas muaj ntxhiab molecule. Peb tuaj yeem siv ntau txoj hauv kev los tsim graphene. Qee qhov no suav nrog kev siv tshuab, sib cais cov pa roj carbon monoxide, cov txheej txheem tshuaj, tshuaj vapor deposition, carbon dioxide txo, ib txoj kev tshuaj tsuag supersonic, laser txoj kev, ion implantation, thiab CMOS-tshaj graphene ntau lawm..
Graphene muaj cov khoom tshwj xeeb. Nws muaj cov qauv muaj zog piv rau nws cov tuab, thiab nws lub zog muaj zog dua li cov hlau. Lwm cov khoom muaj xws li kev muaj peev xwm ua kom sov thiab hluav taws xob zoo, muaj peev xwm kub hnyiab tau ntawm qhov kub thiab txias, nyob ze ntawm lub pob tshab, qhov nyuaj ntawm cov qauv graphene, thiab cov khoom siv hluav taws xob tsis zoo. Tsis tas li ntawd, cov khoom no 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.
Daim duab 01: Daim ntawv zoo li tus qauv ntawm Graphene
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 hluav taws xob rau cov kab 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.
Muaj ntau daim ntawv thov 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 lossis xov tooj).
Graphene Oxide yog dab tsi?
Graphene oxide yog ib daim ntawv monomolecular los ntawm graphite oxide. Cov ntaub ntawv no tseem ceeb heev vim tias peb tuaj yeem siv nws los tsim cov nplooj ntawv graphene hauv txoj hauv kev zoo tab sis pheej yig. Hauv qhov no, graphene oxide yog oxidized daim ntawv ntawm graphene. Nws muaj ib txheej atomic, laced nrog oxygen-muaj cov pab pawg ua haujlwm.
Daim duab 02: Ib qho tshuaj Aqueous ntawm Graphene Oxide
Cov khoom no yog dispersible nyob rau hauv dej thiab lwm yam kuab tshuaj vim muaj oxygen-functionalities. Yog li ntawd, nws yooj yim los ua cov khoom siv no. Ntxiv mus, cov cuab yeej no tso cai rau nws los txhim kho cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob ntawm ceramic thaum peb sib xyaw cov khoom siv ceramic nrog graphene oxide. Txawm li cas los xij, nws tsis zoo rau hluav taws xob conductivity. Li no, peb categorize nws raws li ib tug hluav taws xob insulator. Qhov no feem ntau yog vim muaj kev cuam tshuam ntawm sp2 bonding networks tam sim no hauv graphite. Tab sis muaj qee cov txheej txheem uas peb tuaj yeem siv los txhawb nws cov khoom.
Ntxiv mus, muaj plaub txoj hauv kev loj uas cov tuam txhab siv los ua qhov sib xyaw no. Lawv yog Staudenmaier, Hofmann, Brodie, thiab Hummers txoj kev. Cov txheej txheem no muaj ntau qhov sib txawv ntawm lawv.
Qhov txawv ntawm Graphene thiab Graphene Oxide yog dab tsi?
Graphene tuaj yeem piav qhia tias yog ib qho allotrope ntawm cov pa roj carbon uas muaj nyob rau hauv daim ntawv ob sab. Graphene oxide yog ib daim ntawv monomolecular los ntawm graphite oxide. Qhov sib txawv tseem ceeb ntawm graphene thiab graphene oxide yog tias graphene yog ib yam khoom ua los ntawm cov pa roj carbon atoms sib koom ua ke hauv cov qauv rov ua dua ntawm hexagons, whereas graphene oxide yog ib daim ntawv oxidized ntawm graphene uas yog laced nrog pab pawg muaj oxygen atoms.
Cov hauv qab no qhia txog qhov sib txawv ntawm graphene thiab graphene oxide nyob rau hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Graphene vs Graphene Oxide
Qhov sib txawv tseem ceeb ntawm graphene thiab graphene oxide yog tias graphene yog ib yam khoom ua los ntawm cov pa roj carbon atoms sib koom ua ke hauv cov qauv rov ua dua ntawm hexagons, whereas graphene oxide yog ib daim ntawv oxidized ntawm graphene uas yog laced nrog pab pawg muaj oxygen. atoms.
