Gịnị mere akwụkwọ graphite ji eduzi ọkụ eletrik?
N'ihi na graphite nwere ụgwọ na-ebugharị n'efu, ụgwọ ndị ahụ na-agagharị n'enweghị ihe ọ bụla mgbe electrification na-emepụta ugbu a, ya mere ọ nwere ike iduzi ọkụ eletrik. Ezigbo ihe kpatara graphite ji eduzi ọkụ eletrik bụ na carbon carbon 6 na-ekekọrịta elektrọn 6 iji mepụta njikọ ∏66 buru ibu na elektrọn 6 na ebe 6. N'ime mgbanaka carbon nke otu oyi akwa nke graphite, mgbanaka nwere akụkụ isii niile na-etolite sistemu njikọ ∏-∏. N'ikwu ya n'ụzọ ọzọ, na mgbanaka carbon nke otu oyi akwa nke graphite, carbon carbon niile na-etolite nnukwu njikọ ∏, na electrons niile dị na nnukwu njikọ a nwere ike na-asọba na oyi akwa, nke bụ ihe mere akwụkwọ graphite nwere ike isi mee. ọkụ eletrik.
Graphite bụ ihe owuwu lamellar, ma enwere electrons efu na-ejikọtaghị n'etiti ọkwa. Mgbe ọkụ eletrik gasịrị, ha nwere ike ịgagharị na ntụziaka. Ihe fọrọ nke nta ka ọ bụrụ ihe niile na-eduzi ọkụ eletrik, ọ bụ naanị okwu nke resistivity. Ọdịdị nke graphite na-ekpebi na ọ nwere ihe mgbochi kacha nta n'etiti ihe carbon.
Ụkpụrụ omume nke akwụkwọ graphite:
Carbon bụ atom tetravalent. N'otu aka ahụ, dị ka atom metal, eletrọn ndị dị n'elu na-adị mfe efu. Carbon nwere obere eletrọn kacha elu. Ọ dị nnọọ ka ọla, ya mere o nwere ụfọdụ conductivity eletrik. , a ga-emepụta electrons efu na oghere kwekọrọ. Ejikọtara ya na electrons dị n'èzí nke carbon nwere ike ịla n'iyi ngwa ngwa, n'okpuru ọrụ nke ọdịiche dị na ya, a ga-enwe mmegharị ma jupụta oghere. Mepụta eruba nke eletrọn. Nke a bụ ụkpụrụ nke semiconductors.
Oge nzipu: Mar-14-2022