Vim li cas nws txawv txawv uas graphite yuav ua hluav taws xob?
Vim li cas nws txawv txawv uas graphite yuav ua hluav taws xob?

Video: Vim li cas nws txawv txawv uas graphite yuav ua hluav taws xob?

Video: Vim li cas nws txawv txawv uas graphite yuav ua hluav taws xob?
Video: Vim li cas koj lub neej thiaj li tsis txawj muaj nyiaj yog ua cas? ( How to Change your life) 2024, Kaum ib hlis
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Graphite yog carbon mineral / ore naturallyexhibits hluav taws xob conductivity. Nws muaj peev xwm conductelectricity vim qhov loj ntawm cov dawb unbounded electronsfloating nyob rau hauv nws cov pa roj carbon txheej. Cov valence electrons no yog freeto tsiv, yog li muaj peev xwm ua hluav taws xob.

Ib sab ntawm qhov no, dab tsi txawv ntawm graphite ua hluav taws xob?

Lub delocalised electrons yog dawb txav los ntawm tus qauv, yog li ntawd graphite ua tau ua hluav taws xob . Qhov no ua rau graphite pab tau rau electrodes hauv roj teeb thiab forelectrolysis. Cov txheej hauv graphite tuaj yeem swb dhau ib leeg vim lub zog nruab nrab ntawm lawv tsis muaj zog.

Ib yam li ntawd, vim li cas graphite tuaj yeem ua hluav taws xob thiab tsis yog Pob Zeb Diamond? Graphite tuaj yeem ua hluav taws xob vim hais tias ntawm thedelocalised (dawb) electrons nyob rau hauv nws cov qauv. Cov no tshwm sim vim hais tias txhua cov pa roj carbon atom tsuas yog sib txuas rau 3 lwm cov pa roj carbon atoms. Txawm li cas los xij, hauv pob zeb diamond , tag nrho 4 txheej electrons ntawm txhua cov pa roj carbon atom siv hauv covalent bonding, yog li muaj tsis muaj delocalised electrons.

Tsuas yog li ntawd, yog vim li cas Graphite yog ib tug zoo conductor ntawm hluav taws xob?

Graphite yog ib tug zoo conductor ntawm hluav taws xob . Nws cov qauv yog qhov laj thawj tseem ceeb rau cov cuab yeej no. Txhua carbon atom nyob rau hauv graphite yog txuas ncaj qha rau tsuas yog peb cov pa roj carbon atomsthrough covalent bonds. Cov electrons dawb no ua graphite a zoo conductor ntawm hluav taws xob thiab ib zoo roj nplua nyeem.

graphene puas tuaj yeem ua hluav taws xob?

Graphene ua hluav taws xob . Qhov no yog vim nws cov qauv. Hauv graphene , txhua carbon atom iscovalently bonded rau 3 lwm tus. Lub atom no muaj free'delocalised' electrons uas nqa tau thiab hla ib hluav taws xob nqi.

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