I-nanomative enezici ezimbili ezinobukhulu obusha, i-Mxene, nayo ingasebenza njenge-lubricant emazingeni okushisa aphezulu noma i-vacuum yesikhala

Ungagcoba amaketanga webhayisekili ngamafutha, kepha kuthiwani ngamabhande okuhambisa ashisayo embonini yensimbi noma eMars Rovers? I-Vienna University of Technology manje selifunde ama-nanomatadi akhethekile kanye namaqembu okucwaninga avela eSaarbrucken (Germany), iSurdue University e-United States nase-University of Chile (e-Santiago, eChile).

Eminyakeni yamuva nje, isigaba sezinto ezibonakalayo saseMnobuse (simemezelwe ngokuthi "maxene") sidale isivuno maqondana nobuchwepheshe obusha bebhethri. Kepha manje sebefakazela futhi i-lubricant enhle kakhulu eqinile, ihlala isikhathi eside futhi ikwazi ukwenza imisebenzi yabo ngisho nasezimweni ezinzima kakhulu. Lezi zindawo eziphakeme zeMXenes manje sezishicilelwe kwi-Prestigious ACS Nano Journal.

I-Ust efana ne-graphict ye-carbon, i-Mxene iwela esigabeni sezincwadi ezibizwa nge-2D: ziyizingqimba ze-ultra-mncane zama-athomu elilodwa futhi azinawo amabhondi aqinile ezingxenyeni ezingenhla noma eziphansi.



USolwazi Carsten Gachot, inhloko yeqembu le-Trubology e-TU's Institute of Engineering Design kanye nentuthuko yomkhiqizo, kusho wena okokuqala nge-max stage, okuwuhlelo lwezendlalelo olukhethekile olwenziwe nge-titanium, i-aluminium nekhabhoni. Icebo elisemqoka uku-OLCH Aluminium ngeHydrofluoric acid.



Lapho-ke okusele kuyinqwaba yama-athomu nezinxenye ze-titanium nekhabhoni ezihlanganiswe ndawonye njengezingcezu zephepha. Isendlalelo ngasinye sizinzile ngokwedwa, kepha izingqimba zingahambisa kalula okuhlobene.

Lokhu kuphamba phakathi kwezendlalelo ze-athomu kwenza lokho kugcotshwa okuhle kakhulu: ukushelela ngokumelana okuphansi kakhulu kungatholakala ngaphandle kokudala ukugqoka. Ngenxa yalokhu, ukuxabana phakathi kwezindawo zensimbi kungancishiswa ku-One-yesithupha, futhi ukumelana nokugqokwa kuphakeme kakhulu: isendlalelo se-MXENE Lubrication sisebenza kahle ngisho nangemva kwemijikelezo yokunyakaza eyi-100,000.



Lokhu kulungele ukusetshenziswa ezimweni ezinzima: Endizeni ye-Space, ngokwesibonelo, ukugcoba amafutha kuvele ngokushesha ku-vacuum, kepha i-Mxene ngefomu le-Fine powder lingasetshenziswa lapho.



Akuhlangene ngalutho nomkhathi noma lokushisa



ICarsten Gachot ithi izindlela ezifanayo ziye zazanywa ezinye izinto zefilimu ezincanyana, njenge-graphene noma i-molybdenum disvulfide. Kepha baphendula ngokuzwela umswakama emkhathini. Ama-molecule wamanzi angashintsha amabutho abugqilayo phakathi kwezendlalelo. Ngakolunye uhlangothi, ngakolunye uhlangothi, kunomthelela omncane.



Enye inzuzo enqumayo ukumelana nokushisa kwama-mpxene, ama-oxidize amaningi futhi alahlekelwe amafutha aphezulu emazingeni okushisa aphezulu. Ngakolunye uhlangothi, ama-Mxene, azinzile futhi angasetshenziswa embonini yensimbi, lapho izingxenye kwesinye isikhathi zihamba ngezinye izikhathi zifinyelela amazinga okushisa ambalwa angamakhulu amaningana ama-degree Celsius.



UDkt Philip Grutzmacher weqembu loProfesa GACHOT, kanye ne-University of Saarbruken eSaarbruken nasePurdue University e-US, wafunda i-ghomu yokuhlola eziningana eTu Wien. Ngakolunye uhlangothi lomhlaba, uProfesa u-Andreas Rosenkranz eChile waba nesandla ekuqaliseni nasekuqasheni lo msebenzi.



ICarsten Gachot ithi kube nentshisekelo enkulu ezintweni ezivela embonini. Sicabanga ukuthi le mnene ingakhiqizwa ngokushesha okukhulu.