Graphene yog ib lub siv lead ua ob-seem uas ua los ntawm cov pa roj carbon atoms tsuas yog ib lub atom tuab, stripped los ntawm cov khoom siv graphite flake. Graphene muaj ntau yam kev siv vim nws cov khoom zoo heev hauv optics, hluav taws xob thiab mechanics. Yog li puas muaj kev sib raug zoo ntawm flake graphite thiab graphene? Cov lus qhia me me hauv qab no ntawm Kev Tshawb Fawb txog kev sib raug zoo ntawm flake graphite thiab graphene:
Cov nplai graphite
1. Txoj kev rho tawm rau kev tsim cov graphene ntau tsis yog tau los ntawm cov flake graphite, tab sis los ntawm cov pa roj carbon xws li methane thiab acetylene. Txawm hais tias lub npe, kev tsim graphene tsis yog los ntawm cov flake graphite. Nws yog ua los ntawm cov pa roj carbon xws li methane thiab acetylene, thiab txawm tias tam sim no muaj ntau txoj hauv kev los rho tawm graphene los ntawm cov nroj tsuag uas loj hlob, thiab tam sim no muaj ntau txoj hauv kev los rho tawm graphene los ntawm cov ntoo tshuaj yej.
2. Cov graphite flake muaj ntau lab graphene. Graphene yeej muaj nyob rau hauv xwm, yog tias kev sib raug zoo ntawm graphene thiab flake graphite, ces graphene txheej los ntawm txheej yog flake graphite, graphene yog ib qho qauv me me heev. Ib millimeter ntawm flake graphite hais tias muaj txog peb lab txheej ntawm graphene, thiab qhov zoo ntawm graphene tuaj yeem pom, siv cov duab piv txwv, thaum peb sau cov lus rau ntawm daim ntawv nrog tus cwj mem, muaj ntau lossis kaum txhiab txheej ntawm graphene.
Txoj kev npaj graphene los ntawm flake graphite yog yooj yim, nrog tsawg qhov tsis zoo thiab cov pa oxygen, cov txiaj ntsig zoo ntawm graphene, qhov loj me, thiab tus nqi qis, uas yog qhov tsim nyog rau kev tsim khoom lag luam loj.
Lub sijhawm tshaj tawm: Lub Peb Hlis-16-2022