Graphite yog cov khoom siv hluav taws xob zoo
Graphitemuaj cov qauv tshwj xeeb uas cov pa roj carbon atom tau teeb tsa hauv cov txheej hexagonal, tso cai rau cov hluav taws xob txav mus los ywj pheej, ua rau nws muaj hluav taws xob zoo thiab muaj txiaj ntsig zoo li cov khoom siv electrode.
Hauv graphite, cov pa roj carbon atom yog teem rau hauv cov khaubncaws sab nraud povtseg los ntawm covalent bonds. Ib qho tseem ceeb ntawm cov qauv graphite yog tus naj npawb ntawm delocalized electrons uas tam sim no. Graphite tsuas yog xav tau peb lub zog hluav taws xob sab nraud rau daim ntawv cog lus, thaum lub tshuab hluav taws xob thib plaub tuaj yeem ua tau ywj pheej hauv kev delocalized. Delocalized electrons tsis yooj yim cuam tshuam nrog ib qho atom tshwj xeeb thiab txav tau dawb. Cov khoom siv hluav taws xob no tso cai rau graphite kom pom cov khoom siv hluav taws xob siab, piav qhia vim li cas cov khoom siv feem ntau siv hauv electrodes.
Graphite electrodes muaj cov khoom siv hluav taws xob zoo heev, muaj peev xwm tiv taus qhov ceev tam sim no thiab kev sib kis ntau zaus, thaum tuav cov khoom zoo txawm tias nyob hauv qhov kub thiab txias.
Graphite electrodes pom zoo thermal conductivity, ua kom kub hloov mus rau ib puag ncig xov xwm, ua kom cov thermal stability thiab efficiency ntawm cov khoom.
Graphite electrodes muaj kev tiv thaiv corrosion zoo tshaj, muaj peev xwm tiv thaiv kev yaig ntawm cov tshuaj xws li oxidants, acids, thiab alkalis, ua kom cov khoom ruaj khov mus ntev.