Hanyar Samun Graphene

1, hanyar tsiri na inji
Hanyar tsabtace kayan inji ita ce hanya don samun kayan sirara-siradi ta hanyar amfani da gogayya da motsi tsakanin abubuwa da graphene. Hanyar mai sauki ce ta aiki, kuma graphene da aka samu yakan kiyaye cikakken tsarin lu'ulu'u. A shekara ta 2004, masana kimiyya biyu na Burtaniya sun yi amfani da tef don nunawa daga zane-zanen hoto ta hanyar yin layi don samun graphene, wanda kuma aka tsara shi azaman hanyar cire kayan inji. Wannan hanyar da aka taɓa ɗaukarta a matsayin mara aiki da iya samar da ɗimbin yawa.
A cikin 'yan shekarun nan, masana'antar ta yi bincike da yawa da sabbin abubuwa na ci gaba a hanyoyin samar da graphene. A halin yanzu, kamfanoni da dama a Xiamen, Guangdong da sauran larduna da biranen kasar sun shawo kan matsalar samar da kayan masarufi na farashi mai rahusa, ta hanyar amfani da hanyar cire kayan masarufi don samar da masarufi ta hanyar masana'antu da tsada da inganci.

2. Hanyar Redox
Hanyar-rage-kuzari shine a sanya hoton hoto ta hanyar amfani da sinadaran reagents kamar su sulfuric acid da nitric acid da kuma oxidants kamar su potassium permanganate da hydrogen peroxide, kara tazara tsakanin layukan graphite, da saka oxides tsakanin gradite layer domin shirya GraphiteOxide. Bayan haka, ana wanke mai sarrafawa da ruwa, kuma daskararren busassun ya bushe a ƙarancin zafin jiki don shirya foda mai sinadarin oxide Graphene oxide an shirya ta peeling graphite oxide foda ta kwasfa ta jiki da kuma fadada zazzabi mai girma. A ƙarshe, an rage ƙwayar graphene ta hanyar sinadarai don samun graphene (RGO). Wannan hanya mai sauki ce ta aiki, tare da yawan amfanin ƙasa, amma ƙarancin samfura [13]. Hanyar rage-kumburin Oxidation yana amfani da sinadarai masu ƙarfi kamar su sulfuric acid da nitric acid, wanda yake da haɗari kuma yana buƙatar ruwa mai yawa don tsaftacewa, wanda ke kawo ƙazantar gurɓacewar muhalli.

Graphene da aka tsara ta hanyar redox yana ƙunshe da wadatattun ƙungiyoyin aiki masu dauke da oxygen kuma yana da sauƙin gyara. Koyaya, lokacin rage graphene oxide, yana da wahala a sarrafa abun cikin oksijin na graphene bayan raguwa, kuma graphene oxide zai ci gaba da raguwa a ƙarƙashin rinjayar rana, yawan zafin jiki a cikin keken hawa da sauran abubuwan waje, saboda haka ingancin kayayyakin graphene samarwa ta hanyar redox ba sau da yawa ya saba daga rukuni zuwa rukuni, wanda ke sanya wuya a iya sarrafa ingancin.
A halin yanzu, mutane da yawa suna rikita batun kwatancin oxide, graphene oxide da rage graphene oxide. Graphite oxide launin ruwan kasa ne kuma shine polymer na graphite da oxide. Graphene oxide samfur ne wanda aka samu ta hanyar peeling oxide na graide zuwa wani Layer guda daya, Layer biyu ko kuma ta oligo, kuma yana dauke da adadi da yawa masu dauke da iskar oxygen, saboda haka sinadarin graphene ba mai gudanar dashi bane kuma yana da kayan aiki, wanda zai ci gaba da rage kuma saki gas kamar sulfur dioxide yayin amfani dashi, musamman yayin sarrafa kayan zafin jiki. Ana iya kiran samfurin bayan rage graphene oxide graphene (rage graphene oxide).

3. (silicon carbide) SiC epitaxial hanya
Hanyar hanyar SiC ita ce ta atomatik atomatik nesa da kayan aiki da sake gina sauran atoms na C ta hanyar hada kai a cikin matsanancin yanayi da yanayin yanayin zafin jiki, don haka samun graphene bisa tushen SiC substrate. Ana iya samun graphene mai inganci ta wannan hanyar, amma wannan hanyar tana buƙatar kayan aiki mafi girma.


Post lokaci: Jan-25-2021