Ubume kunye ne-morphology yomhlaba yegraphite eyandisiweyo

Igraphite eyandisiweyo luhlobo lwento ekhululekileyo nenemingxuma efana nentshulube efunyenwe kwiflake yendalo yegraphite ngokudibanisa, ukuhlamba, ukomiswa kunye nokwandiswa kobushushu obuphezulu. Yimathiriyeli entsha yekhabhoni ekhululekileyo nenerhashalala. Ngenxa yokufakwa kwe-agent ye-intercalation, umzimba wegraphite uneempawu zokumelana nobushushu kunye nokuhanjiswa kombane, kwaye isetyenziswa ngokubanzi ekutywineni, ukukhuselwa kwendalo, i-flame retardant kunye nezixhobo zomlilo kunye nezinye iinkalo. Lo mhleli ulandelayo weFuruite Graphite wazisa ubume kunye nemorphology yomphezulu yegraphite eyandisiweyo:

thina

Kwiminyaka yakutshanje, abantu banikela ingqalelo ngakumbi nangakumbi kungcoliseko lokusingqongileyo, kwaye iimveliso zegraphite ezilungiselelwe ngendlela ye-electrochemical zineengenelo zokungcoliseka kwendalo okuncinci, umxholo wesulfure ophantsi kunye neendleko eziphantsi. Ukuba i-electrolyte ayingcoliswanga, ingaphinda isetyenziswe, ngoko iye yatsala ingqalelo enkulu. Isisombululo esixubeneyo se-asidi ye-phosphoric kunye ne-asidi ye-sulfuric yasetyenziswa njenge-electrolyte ukunciphisa ukuxinwa kwe-asidi, kwaye ukongezwa kwe-asidi ye-phosphoric kukwandise ukuxhathisa kwe-oxidation yegraphite eyandisiweyo. Igraphite eyandisiweyo elungisiweyo inesiphumo esihle sokubuyiswa komlilo xa isetyenziswa njenge-thermal insulation kunye nezixhobo zomlilo.

I-micro-morphology ye-flake graphite, igraphite ekwandiswayo kunye negraphite eyandisiweyo yafunyanwa kwaye yahlalutywa yi-SEM. Kubushushu obuphezulu, iikhompawundi ze-interlayer kwigraphite ekwandiswayo ziya kubola ukuvelisa izinto ezinegesi, kwaye ukwandiswa kwerhasi kuya kuvelisa amandla okuqhuba anamandla okwandisa igraphite ecaleni kwendlela ye-C axis ukwenza igraphite eyandisiweyo kwimilo yeentshulube. Ngoko ke, ngenxa yokwandiswa, indawo ethile yendawo yegraphite eyandisiweyo iyanda, kukho iipores ezininzi ezifana ne-organ phakathi kwe-lamellae, isakhiwo se-lamellar sihlala, amandla e-van der Waals phakathi kweengqimba kutshatyalaliswa, i-compounds intercalation igcwele ngokupheleleyo. yandisiwe, kwaye isithuba phakathi kwamaleko egraphite siyanda.


Ixesha lokuposa: Mar-10-2023