GRAPHENE, HE MEA PULE PULE
ʻO Graphene kahi mea hou e hoʻohuli i nā mea a mākou e hoʻohana ai i nā lole.
Ua ʻōlelo ʻia ma mua i kā mākou ʻatikala e pili ana i nā lole hou, ke hoʻomau nei ʻo graphene i ka hoʻonāukiuki. A no ke kumu kūpono. ʻIke ʻia i ka makahiki 2004 e nā mea noiʻi ʻelua mai ke Kulanui o Manchester, André Geim a me Konstantin Novoselov, a hāʻawi ʻia i ka Nobel Prize for Physics i ka makahiki 2010, ua haʻaheo kēia mea hou he lehulehu i nā hiʻohiʻona ʻē aʻe.
Lawe i ke kinona o hoʻokahi ʻāpana o nā ʻāpana kalapona i hoʻonohonoho ʻia i kahi ʻano meli, hiki mai ka graphene i kahi ʻano maʻemaʻe, me ka ʻole o nā mea hoʻohui a me nā kemika. Hoʻonohonoho ʻia i nā pale i uhi ʻia i nā lekiyon, kona papa pālahalaha a ākea a me nā pono pumehana a me nā uila i hoʻolilo iā ia i moho kūpono no ka hoʻohui lole, me ka hoʻohui ʻana i kāna pono kaiapuni, e like me ka lawe ʻana o graphene i nā hydrocarbons a me nā meaola
Hiki ke wehewehe ʻia ʻo Graphene ma ke ʻano he hoʻokahi-atoma mānoanoa o ka graphite. ʻO ia ke kumu o nā kumu o nā allotropes ʻē aʻe, e like me ka graphite, nā lanahu, nā carbon nanotubes a me nā fullerenes. Hiki ke noʻonoʻo ʻia ia ma ke ʻano he mole mole nunui mau ʻole, ka hihia palena o ka ʻohana o nā pālahalaha polycyclic aromatik hydrocarbons. Ua hoʻonui ākea ka noiʻi Graphene mai ka wā o ka hoʻokaʻawale mua ʻia ʻana o ka mea i 2004. Ua ʻike ʻia ka noiʻi ʻana e nā wehewehe manaʻo o ka haku mele ʻana o graphene, nā ʻano a me nā waiwai, i helu ʻia i nā makahiki he hala i hala. Ua maʻalahi ka maʻalahi o ka graphene kiʻekiʻe e hoʻokaʻawale, e hana ana i kahi noiʻi hou aku. Ua lanakila ʻo Andre Geim lāua ʻo Konstantin Novoselov ma ke Kulanui o Manchester i ka Nobel Prize in Physics i ka makahiki 2010 "no ka hoʻāʻo ʻana i ka honua e pili ana i nā graphene ʻelua dimensional.
Loaʻa nā lole i uhi ʻia me Graphene e ka hoʻēmi kemikala o graphene oxide. Ke kiʻi nei i nā lole i loaʻa i nā pale graphene. Ua hōʻike ka electrochemical impedance spectroscopy i ka hana conductive o nā lole. ʻO ka pālākio helu he kiʻina kī i ke ʻano e ka voltammetry cyclic. Ua hōʻike ʻia ka microscopy electrochemical Scanning i ka hoʻonui ʻana o ka electroactivity.