Masiku ano tikuwona momwe asayansi akuyesera kugwiritsa ntchito zinthu zodabwitsa za graphene zomwe zangopangidwa kumene. Ziyembekezo zofananazo zalonjezedwa kumene mu labotale, zinthu zochokera ku nayitrogeni zomwe katundu wake akuwonetsa kuthekera kwa ma conductivity apamwamba kapena kachulukidwe kake kakusungirako mphamvu.
Kupezaku kudapangidwa ndi gulu la asayansi apadziko lonse lapansi ku yunivesite ya Bayreuth ku Germany. Malinga ndi malamulo a chemistry ndi physics, chinthu chimodzi cha mankhwala chikhoza kukhalapo mumpangidwe wa zinthu zingapo zosavuta zosiyanasiyana. Mwachitsanzo, mpweya (O2) ukhoza kusinthidwa kukhala ozone (O3), ndi carbon kukhala graphite kapena diamondi. Mitundu yotereyi ya kukhalapo kwa chinthu chomwecho imatchedwa . Vuto la nayitrogeni linali loti ma allotropes ake ndi ochepa - pafupifupi 15, ndipo atatu okha ndi omwe amasinthidwa polima. Koma tsopano allotrope wina wa polima wa chinthu ichi wapezeka, wotchedwa "black nitrogen".
"Nayitrogeni Yakuda" idapangidwa pogwiritsa ntchito chitsulo cha diamondi pamphamvu ya 1,4 miliyoni atmospheres pa kutentha kwa 4000 Β° C. Pazifukwa zotere, nayitrogeni idapeza mawonekedwe omwe anali asanakhalepo kale - magalasi ake a kristalo adayamba kuoneka ngati kristalo wa phosphorous wakuda, zomwe zidapangitsa kuti dzikolo lizitcha "nayitrogeni wakuda." M'derali, nayitrogeni ali ndi mbali ziwiri, ngakhale zigzag. Awiri-dimensionality akusonyeza kuti madutsidwe wa nayitrogeni m'chigawo ichi akhoza kutengera graphene, zomwe zingakhale zothandiza mukamagwiritsa ntchito chinthu pamagetsi.
Kuonjezera apo, m'dziko latsopano, maatomu a nayitrogeni amalumikizidwa ndi ma bond amodzi, omwe amakhala ofooka kasanu ndi kamodzi kuposa maulalo atatu, monga momwe zimakhalira ndi nayitrogeni wamba (N2). Izi zikutanthauza kuti kubwerera kwa "nayitrogeni wakuda" kumalo ake abwino kudzatsagana ndi kutulutsidwa kwa mphamvu yaikulu, ndipo iyi ndiyo njira yopita ku mafuta kapena mafuta. Koma zonsezi ziri patsogolo, ndipo mpaka pano palibe ngakhale sitepe yomwe yatengedwa panjira iyi, koma basi - iwo anayang'ana kupyolera mu bowo la kiyi ndipo adawona chinachake.
Source: 3dnews.ru