Isakhiwo kanye ne-surface morphology ye-graphite enwetshiwe

I-graphite eyandisiwe iwuhlobo lwento exegayo futhi enezimbotshana efana nezikelemu etholakala ku-flake graphite yemvelo ngokuhlangana, ukuwasha, ukomiswa kanye nokunwetshwa kwezinga lokushisa eliphezulu. Kuyinto evulekile futhi enezimbotshana zekhabhoni entsha. Ngenxa yokufakwa kwe-ejenti ye-intercalation, umzimba we-graphite unezici zokumelana nokushisa kanye ne-conductivity kagesi, futhi isetshenziswa kabanzi ekuvaleni uphawu, ukuvikelwa kwemvelo, izinto ezivimbela ilangabi kanye nezinto ezingashi kanye neminye imikhakha. Umhleli olandelayo we-Furuite Graphite wethula isakhiwo kanye ne-surface morphology ye-graphite enwetshiwe:

Eminyakeni yamuva, abantu banaka kakhulu ukungcoliswa kwemvelo, futhi imikhiqizo ye-graphite elungiselelwe indlela ye-electrochemical inezinzuzo zokungcoliswa kwemvelo okuncane, okuqukethwe kwesibabule esincane kanye nezindleko eziphansi. Uma i-electrolyte ingangcolisiwe, ingasetshenziswa kabusha, ngakho-ke idonse ukunaka okukhulu. Isixazululo esixubile se-phosphoric acid ne-sulfuric acid sasetshenziswa njenge-electrolyte ukunciphisa ukugcwala kwe-asidi, futhi ukungezwa kwe-phosphoric acid nakho kwandisa ukumelana ne-oxidation ye-graphite eyandisiwe. I-graphite enwetshiwe elungisiwe inomphumela omuhle we-flame retardant uma isetshenziswa njenge-thermal insulation kanye nezinto ezingashi.

I-micro-morphology ye-flake graphite, i-graphite enwebekayo kanye ne-graphite enwetshiwe itholwe futhi yahlaziywa yi-SEM. Emazingeni okushisa aphezulu, izinhlanganisela ze-interlayer ku-graphite enwebekayo zizobola ukuze zikhiqize izinto ezinegesi, futhi ukunwetshwa kwegesi kuzokhiqiza amandla anamandla okushayela ukuze kwandiswe i-graphite ngokuqondisa kwe-axis engu-C ukuze kwakheke i-graphite enwetshiwe esimweni sesikelemu. Ngakho-ke, ngenxa yokwandiswa, indawo ethize ye-graphite eyandisiwe iyanda, kunezimbotshana eziningi ezinjengezitho phakathi kwe-lamellae, isakhiwo se-lamellar sihlala, amandla e-van der Waals phakathi kwezingqimba abhujiswa, izinhlanganisela zokuhlanganisa zigcwele ngokugcwele. kwandiswa, futhi isikhala phakathi kwezingqimba zegraphite siyakhula.