ʻO "ʻeleʻele nitrogen" me nā manaʻo graphene i hana ʻia i loko o ka hale hana

I kēia lā ke ʻike nei mākou i ka hoʻāʻo ʻana o nā ʻepekema e hoʻomaʻamaʻa i nā waiwai nani o ka graphene mea i hoʻohui ʻia. Ua hoʻohiki ʻia nā manaʻo like synthesized i loko o ke keʻena hoʻokolohua, kahi mea i hoʻokumu ʻia i ka nitrogen nona nā waiwai e hōʻike ana i ka hiki ke kiʻekiʻe conductivity a i ʻole ka nui o ka mālama ʻana i ka ikehu.

Ua ʻike ʻia e kahi hui honua o nā ʻepekema ma ke Kulanui o Bayreuth ma Kelemānia. Wahi a nā kānāwai o ka chemistry a me ka physics, hiki i hoʻokahi mea kemika ke noho ma ke ʻano o nā mea maʻalahi like ʻole. No ka laʻana, hiki ke hoʻololi ʻia ka oxygen (O2) i ozone (O3), a me ke kalapona i graphite a i ʻole daimana. Ua kapa ʻia kēlā ʻano o ka noho ʻana o ka mea like nā alotrop. ʻO ka pilikia me ka nitrogen he kakaikahi wale nō o kāna mau allotropes - ma kahi o 15, a ʻekolu wale nō o lākou he hoʻololi polymer. Akā i kēia manawa ua loaʻa kekahi polymer allotrope o kēia mea, i kapa ʻia ʻo "black nitrogen".

Ua hana ʻia ʻo "Black Nitrogen" me ka hoʻohana ʻana i kahi anvil daimana ma ke kaomi o 1,4 miliona mau ea ma kahi mahana o 4000 °C. Ma lalo o ia mau ʻano, ua loaʻa ka nitrogen i kahi ʻano like ʻole - ua hoʻomaka kona latike kristal e like me ka lattice crystal o ka phosphorus ʻeleʻele, kahi i kapa ʻia ai ka mokuʻāina "ʻeleʻele nitrogen." I kēia mokuʻāina, ʻelua-dimensional, ʻoiai he zigzag, ka nitrogen. Hōʻike ka manaʻo ʻelua e hoʻohālikelike paha ka conductivity o ka nitrogen i kēia mokuʻāina i nā waiwai o ka graphene, hiki ke hoʻohana ʻia ke hoʻohana ʻana i ka mea i loko o ka uila.

Eia hou, ma ka moku'āina hou, ua hoʻopili ʻia nā ʻātoma nitrogen e nā paʻa hoʻokahi, ʻo ia ka ʻeono mau nāwaliwali ma mua o ka paʻa triple, e like me ke ʻano me ka nitrogen atmospheric maʻamau (N2). ʻO ia ke ʻano o ka hoʻihoʻi ʻana o ka "ʻeleʻele nitrogen" i kona kūlana maʻamau e hele pū ʻia me ka hoʻokuʻu ʻana i ka ikehu nui, a ʻo ia ke ala i ka wahie a i ʻole ka wahie. Akā, aia kēia mau mea ma mua, a hiki i kēia manawa ʻaʻole i hana ʻia kahi ʻanuʻu ma kēia ala, akā - nānā lākou ma ka lua kī a ʻike i kekahi mea.

Source: 3dnews.ru