GRAPHENE, O SE MEA E SILI ONA AUAUNA
Graphene o se fou mea o le a toe suia mea tatou te faʻaaoga ai lavalava.
Na taʻua muamua i la matou tusitusiga i luga o ie fou, o le graphene o loʻo faʻaauauina pea le vevesi. Ma mo mafuaaga lelei. Na maua i le 2004 e ni tagata suʻesuʻe mai le Iunivesite o Manchester, André Geim ma Konstantin Novoselov, ma tauaaoina le Nobel Prize for Physics i le 2010, o lenei mea fou e leʻi mafaia ona maua e iai ni foliga uiga ese.
Aveina le foliga o se tasi vaega o carbon carbon faʻatulagaina i se meli mamanu, graphene sau i le mama foliga, aunoa ma ni faʻaopoopoga poʻo se kemisi. Faʻatulagaina i laʻasaga-gaugau laupepa, o lona mafolafola ma extensible luga ma ona vevela ma eletise meatotino avea ai o se sui tauva mo le tuʻufaʻatasia o ie, faʻatasi ai ma lona siosiomaga aoga, pei graphene mitiia hydrocarbons ma mea toto.
Graphene mafai ona faʻamatalaina o se tasi-atom mafiafia vaega o le kalafi. O le autu faʻavae elemeni o isi allotropes, aofia ai kalafi, malala, carbon nanotubes ma fullerenes. E mafai foi ona avea o se mole lapoʻa mumu tele, o le faʻatapulaʻaina mataupu o le aiga o mafolafola polycyclic aromatik hydrocarbons. Graphene suesuega ua faʻalauteleina vave talu mai le vailaʻau na muamua vavaeʻeseina i le 2004. Suesuega na faʻamatalaina e ala i le faʻamatalaina faʻamatalaga o graphene tuufaatasiga, fausaga ma meatotino, lea na uma faitauga sefulu tausaga muamua atu. O le graphene sili ona lelei na faʻamaonia foi e matuaʻi faigofie ona tuʻu eseʻese, ma faia ai nisi suʻesuʻega. Andre Geim ma Konstantin Novoselov i le Iunivesite o Manchester na manumalo i le Nobel Prize i le Physics i le 2010 "mo suʻega eleele e uiga i le lua-itu mea graphene.
Graphene-coated ie na maua mai i le faʻaitiitia o vailaʻau o le graphene oxide. Faʻatautaia ie na maua mai i le faʻaaogaina o ni graphene coatings. Spectrochemical impedance spectroscopy faʻaalia le amio faʻataʻitaʻi o ie. O le scan rate o se vaega taua i le faʻailogaina e ala i le cyclic voltammetry. O le suʻesuʻeina o le eletise microscopy na faʻaalia ai le faʻateleina o le eletise.