Bafuputsi ba boletse esale pele marang-rang a macha a carbon, a tšoanang le a graphene, empa a na le microstructure e rarahaneng, e ka lebisang ho betere e ntle ea koloi ea motlakase.Graphene ke mofuta o tsebahalang haholo oa khabone.E 'nile ea nkoa e le molao o mocha oa papali bakeng sa theknoloji ea betri ea lithium-ion, empa mekhoa e mecha ea tlhahiso e ka qetella e hlahisa libeteri tse matla haholo.
Graphene e ka bonoa e le marang-rang a liathomo tsa k'habone, moo athomo e 'ngoe le e 'ngoe ea k'habone e hokahantsoeng le liathomo tse tharo tse haufi tsa khabone ho hlahisa li-hexagon tse nyane.Leha ho le joalo, bafuputsi ba nahana hore ho phaella mohahong ona o tobileng oa mahe a linotši, mehaho e meng e ka boela ea hlahisoa.
Ena ke boitsebiso bo bocha bo hlahisitsoeng ke sehlopha se tsoang Univesithing ea Marburg Jeremane le Univesithi ea Aalto e Finland.Ba ile ba hoketsa liathomo tsa carbon ka litsela tse ncha.Seo ho thoeng ke marang-rang a biphenyl a entsoe ka li-hexagon, lisekoere le li-octagon, e leng marang-rang a rarahaneng ho feta graphene.Bafuputsi ba re, ka hona, e na le e fapaneng haholo, 'me ka litsela tse ling, thepa ea elektronike e lakatsehang.
Ka mohlala, le hoja graphene e nkoa e le ea bohlokoa ka lebaka la bokhoni ba eona ba ho ba semiconductor, marang-rang a macha a carbon a itšoara joaloka tšepe.Ha e le hantle, ha e le bophara ba liathomo tse 21 feela, mela ea marang-rang ea biphenyl e ka sebelisoa e le likhoele tse tsamaisang lisebelisoa tsa elektroniki.Ba supile hore boemong bona, graphene e ntse e sebetsa joalo ka semiconductor.
Mongoli ea ka sehloohong o itse: "Mofuta ona o mocha oa marang-rang oa carbon o ka boela oa sebelisoa e le lisebelisoa tse babatsehang tsa anode bakeng sa libeteri tsa lithium-ion.Ha e bapisoa le lisebelisoa tsa morao-rao tse thehiloeng ho graphene, e na le matla a ho boloka lithium.
Anode ea betri ea lithium-ion hangata e entsoe ka graphite e phatlalalitsoeng holim'a foil ea koporo.E na le conductivity e phahameng ea motlakase, e seng ea bohlokoa feela bakeng sa ho khutlisetsa li-ion tsa lithium pakeng tsa likarolo tsa eona, empa hape hobane e ka tsoela pele ho etsa joalo bakeng sa lipotoloho tse ka bang likete.Sena se etsa hore e be betri e sebetsang hantle haholo, empa hape le betri e ka tšoarellang nako e telele ntle le ho senyeha.
Leha ho le joalo, mekhoa e meng e sebetsang hantle le e menyenyane e thehiloeng ho marang-rang ana a macha a carbon a ka etsa hore polokelo ea matla ea betri e be matla haholoanyane.Sena se ka etsa hore likoloi tsa motlakase le lisebelisoa tse ling tse sebelisang libeteri tsa lithium-ion li be nyane hape li be bobebe.
Leha ho le joalo, joalo ka graphene, ho fumana mokhoa oa ho etsa mofuta ona o mocha ka bongata ke phephetso e latelang.Mokhoa oa hajoale oa ho kopanya o ipapisitse le bokaholimo ba khauta bo boreleli haholo moo limolek'hule tse nang le khabone qalong li etsang liketane tse hokahaneng tse mahlakore a mabeli.Liphetoho tse latelang li hokahanya liketane tsena ho etsa libopeho tsa lisekoere le octagonal, e leng se etsang hore sephetho sa ho qetela se fapane le graphene.
Bafuputsi ba ile ba hlalosa: “Mohopolo o mocha ke ho sebelisa limolek’hule tse fetotsoeng ho hlahisa biphenyl ho e-na le graphene.Sepheo hona joale ke ho hlahisa maqephe a maholoanyane a boitsebiso e le hore litšobotsi tsa oona li ka utloisisoa hamolemo.”
Nako ea poso: Jan-06-2022