I-US iphuhlisa indlela yovavanyo olukhawulezayo lokuvavanya ukubola kweemoto ezikhuselwe yigraphene
2020-11-25
Kwiimoto, iinqwelomoya kunye neenqanawa, ukulandelela imiqobo yegraphene kunokubonelela amashumi eminyaka okhuseleko kwi-oxygen corrosion, kodwa indlela yokuvavanya ukusebenza kwayo ibisoloko ingumngeni. Ngokutsho kweendaba zangaphandle, izazinzulu kwiLebhu yeSizwe yaseLos Alamos eUnited States ziye zacebisa isicombululo esinokuba luncedo.
Umphandi oyintloko u-Hisato Yamaguchi uthe: "Senza kwaye sisebenzise umoya ongcolisa kakhulu, kwaye siqwalasele ifuthe lawo lokukhawuleza kwizinto ezikhuselayo zegraphene. Kuphela ngokunika iimolekyuli zeoksijini amandla amancinci e-kinetic, sinokukhupha ngokukhawuleza ulwazi lokurhwaphiliza amashumi eminyaka. Senze ngobuchule inxalenye yomoya, kuquka ioksijini enokuhanjiswa kwamandla achazwe ngokwasemzimbeni, kwaye iveze isinyithi esikhuselwe yigraphene kulo moya.
Amandla e-kinetic eemolekyuli ezininzi zeoksijini athatha amashumi eminyaka ukuvelisa umhlwa kwisinyithi. Nangona kunjalo, inxalenye encinci ye-oksijini yendalo enamandla amakhulu e-kinetic kwi-distribution yamandla echazwe ngokwasemzimbeni ingaba ngumthombo oyintloko wokugqwala. U-Yamaguchi uthe: “Ngokuthelekisa imifuniselo kunye neziphumo zokulinganisa, kufumaniseke ukuba inkqubo yokungena kweoksijini yegraphene yahluke ngokupheleleyo kwiimolekyuli ezinamandla kunye nangaphandle kwamandla amancinci ekinetic. Ke ngoko, sinokwenza iimeko ezenziweyo kwaye sizame ukukhawulezisa uvavanyo lomhlwa. ”
Kuqikelelwa ukuba eUnited States kuphela, ilahleko ebangelwa kukubola kweemveliso zentsimbi ithatha malunga ne-3% yemveliso yasekhaya (GDP), kwaye inokufikelela kwiitriliyoni zeedola kwihlabathi jikelele. Ngethamsanqa, uhlalutyo lwakutsha nje lufumene ukuba iamolekyu ze-oksijini zinokungena ngokukhululekileyo kodwa zingenakonakala kwigraphene emva kokuba zinikwe amandla ongezelelweyo e-kinetic, ukwenzela ukuba ukuphumelela kweendlela zonyango ze-graphene ekukhuseleni ukugqwala kunokuhlaziywa.
Abaphandi bathi xa iimolekyuli zeoksijini zingachatshazelwa ngamandla e-kinetic, igraphene inokusebenza njengomqobo olungileyo kwioksijini.
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