Kuvandudzwa kwesimba rakachena uye rinoshandiswa patsva inzira huru yekusimudzira magariro neupfumi hwenyika yedu.Mumatanho ese emagetsi matsva tekinoroji, electrochemical simba rekuchengetedza rine chinzvimbo chakakosha zvakanyanya, uye zvakare iri nyaya inopisa mukutsvagisa kwazvino kwesainzi.Serudzi rutsva rwemaviri-dimensional chimiro conductive zvinhu, kushandiswa kwegraphene kune kwakakosha kukosha uye hukuru hwekusimudzira mune ino ndima.
Graphene zvakare chimwe chezvinhu zvinonyanya kunetseka zvinhu zvitsva.Chimiro chayo chinoumbwa maviri symmetrical, nested sub-lattices.Doping ine heterogeneous maatomu inzira yakakosha yekutyora iyo symmetric chimiro uye modulate yayo yemuviri.Maatomu eNitrogen ane saizi iri pedyo neiyo yeatomu kabhoni uye zviri nyore kudonhedzwa mulatisi yegraphene.Naizvozvo, nitrogen doping inoita basa rakakosha mukutsvagisa kwezvinhu zvegraphene.Kutsiva nedoping kunogona kushandiswa kushandura emagetsi zvimiro zvegraphene panguva yekukura.
Graphene yakazara nenitrogeninogona kuvhura iyo simba bhendi gap uye kugadzirisa conductivity mhando, kushandura chimiro chemagetsi, uye kuwedzera yemahara yekutakura density, nekudaro ichivandudza conductivity uye kugadzikana kwegraphene.Pamusoro pezvo, kuunzwa kwenitrogen-ine maatomu maumbirwo mukati mekabhoni grid yegraphene kunogona kuwedzera nzvimbo dzinoshanda dzakashambadzirwa pamusoro pegraphene, nekudaro kunowedzera kudyidzana pakati pesimbi zvidimbu negraphene.Naizvozvo, kushandiswa kwenitrogen-doped graphene yemidziyo yekuchengetedza simba kune yakanyanya kukwirira electrochemical kuita, uye inotarisirwa kuve yakakwirira-inoshanda electrode zvinhu.Tsvagiridzo iripo inoratidzawo kuti nitrogen-doped graphene inogona kuvandudza zvakanyanya hunhu, kukurumidza kuchaja uye kuburitsa kugona uye kutenderera hupenyu hwezvinhu zvekuchengetedza simba, uye ine hombe yekushandisa mumunda wekuchengetedza simba.
Nitrogen-doped graphene ndiyo imwe yenzira dzakakosha yekuona kushanda kwegraphene, uye inoita basa rakakosha mukuwedzera minda yekushandisa.N-doped graphene inogona kuvandudza zvakanyanya hunhu, kukurumidza kuchaja uye kuburitsa kugona uye kutenderera hupenyu hwesimba rekuchengetedza zvinhu, uye ine hombe yekushandisa mumakemikari ekuchengetedza simba masisitimu akadai se supercapacitors, lithium ion, lithium sulfur uye lithium air mabhatiri.
Kana iwe uchifarirawo mamwe functionalized graphene, ndapota usazeza kutibata.Imwezve sevhisi yekugadzirisa inopihwa neHongwu Nano.
Nguva yekutumira: Jun-01-2021