Namuhla sibona indlela ososayensi abazama ngayo ukusebenzisa izici ezimangalisayo ze-graphene yezinto esanda kwenziwa. Amathemba afanayo asanda kuthenjiswa elabhorethri, into esekelwe ku-nitrogen izakhiwo zayo zisikisela ukuthi kungenzeka yini ukuba ne-conductivity ephezulu noma ukuminyana okuphezulu kokugcina amandla.
Lokhu kutholwa kwenziwa yiqembu lososayensi bamazwe ngamazwe eNyuvesi yaseBayreuth eJalimane. Ngokwemithetho ye-chemistry kanye ne-physics, i-chemical element eyodwa ingaba ngesimo sezinto eziningana ezilula ezihlukene. Isibonelo, umoya-mpilo (O2) ungaguqulwa ube yi-ozone (O3), kanye nekhabhoni ibe yigraphite noma idayimane. Izinhlobo ezinjalo zobukhona besici esifanayo zibizwa . Inkinga nge-nitrogen yayiwukuthi kunama-allotropes ayo ambalwa uma kuqhathaniswa - angaba ngu-15, futhi amathathu kuphela awo angama-polymer modifications. Kodwa manje sekutholakele enye i-polymer allotrope yale nto, ebizwa ngokuthi “i-nitrogen emnyama”.
I-"Nitrogen Emnyama" yakhiqizwa kusetshenziswa i-anvil yedayimane ngomfutho we-atmosphere eyizigidi ezingu-1,4 ezingeni lokushisa elingu-4000 °C. Ngaphansi kwezimo ezinjalo, i-nitrogen yathola isakhiwo esingakaze sibonwe kuze kube manje - i-crystal lattice yaqala ukufana ne-crystal lattice ye-phosphorus emnyama, okwabangela ukubiza lesi simo ngokuthi "i-nitrogen emnyama." Kulesi simo, i-nitrogen inezinhlangothi ezimbili, noma i-zigzag, isakhiwo. Ubukhulu obubili bubonisa ukuthi ukuqhutshwa kwe-nitrogen kulesi simo kungase ngandlela thize kuphindaphinde izici ze-graphene, ezingaba wusizo uma kusetshenziswa into ezintweni zikagesi.
Ukwengeza, esimweni esisha, ama-athomu e-nitrogen axhunywe ngebhondi eyodwa, ebuthakathaka ngokuphindwe kasithupha kune-triple bond, njengoba kunjalo nge-nitrogen yasemkhathini evamile (N2). Lokhu kusho ukuthi ukubuyiselwa "kwe-nitrogen emnyama" esimweni sayo esivamile kuzohambisana nokukhululwa kwamandla abalulekile, futhi lena yindlela eya kuphethiloli noma amaseli kaphethiloli. Kodwa konke lokhu kungaphambili, futhi kuze kube manje akukho ngisho nesinyathelo esithathiwe kule ndlela, kodwa nje - babheka ngembobo kakhiye babona okuthile.
Source: 3dnews.ru