Izizathu zezici zekhwalithi ephezulu ye-flake graphite

I-Flake graphite isetshenziswa kakhulu embonini, esukela ezicini zayo zekhwalithi ephezulu. Namuhla, i-Furuite Graphite Xiaobian izokutshela izizathu zezici zekhwalithi ephezulu ze-flake graphite ezivela ezicini zezakhi zokwakheka komndeni namakristalu axubile:

thina

Okokuqala, izici zekhwalithi eziphezulu ze-carbon elements ezakhayoi-flake graphite.

1. Amakhemikhali e-elemential carbon azinzile ekamelweni lokushisa, futhi ayincibiliki emanzini, i-dilute acid, i-alkali ehlanjululwayo kanye nezincibilikisi eziphilayo;

2, ukusabela komoyampilo emazingeni okushisa ahlukene ukuze kukhiqizwe isikhutha noma ikhabhoni monokside; Ku-halogen, i-fluorine kuphela engasabela ngokuqondile nge-elemental carbon;

3. Ngaphansi kokushisisa, i-elemental carbon i-oxidized kalula nge-asidi;

4. Emazingeni okushisa aphezulu, ikhabhoni nayo ingasabela ngezinsimbi eziningi ukukhiqiza ama-carbides ensimbi;

5. Ikhabhoniiyancishiswa futhi ingasetshenziswa ukuncibilikisa izinsimbi ezingeni lokushisa eliphezulu.

Okwesibili, izici zamakristalu axubile akhiwe nge-flake graphite.

1. Ku-graphite crystal, ama-athomu ekhabhoni akusendlalelo esifanayo ayahlanganiswa ne-sp2 ukuze akhe amabhondi ahlangene, futhi i-athomu yekhabhoni ngayinye ixhunywe namanye ama-athomu amathathu ngamabhondi amathathu ahlangene. Ama-athomu ekhabhoni ayisithupha akha indandatho eyi-hexagonal endizeni efanayo, inwebela esakhiweni esinezingqimba, lapho ubude bebhondi ye-CC bond bonke bungu-142pm, okuyingxenye yobude besibopho sekristalu ye-athomu, ngakho-ke ungqimba olufanayo, luyi-athomu. ikristalu.

2. Izendlalelo zamakristalu e-graphite zihlukaniswa ngo-340pm, okuyibanga elikhulu, futhi zihlanganiswa amandla e-van der Waals, okungukuthi, izingqimba zingezamakristalu amangqamuzana. Kodwa-ke, ngenxa yesibopho esiqinile phakathi kwama-athomu e-carbon kungqimba olufanayo lwendiza, kunzima kakhulu ukubhubhisa, ngakho-ke indawo yokuncibilikai-graphitenayo iphakeme futhi izakhiwo zayo zamakhemikhali zizinzile.


Isikhathi sokuthumela: Apr-20-2023