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[資源]
高表面積的石墨烯大塊材料的活化方法
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Activation routes for high surface area graphene monoliths from graphene oxide colloids,Carbon 76 (2014) 220 -231. 影響因子:6.16 摘要:Graphene monoliths made from graphene oxide colloids by unidirectional freeze drying method were activated by typical activation processes of CO2 activation, chemical activation using ZnCl2 or H3PO4, and KOH activation. The porosity development of graphene monolith markedly depends on the activation method. The monoliths with highest surface area are obtained by the KOH activation method; only the KOH activation is effective for production of the graphene monolith of which surface area is in the range of 1760 2150 m2g 1. The mechanism of the porosity development by KOH activation method is proposed. This work provides a promising route for the bottom up design of pore width-tunable nanoporous carbons. 中文翻譯摘要:通過單向的冷凍干燥方法,用氧化石墨烯膠體制備的大塊石墨烯材料通過典型的CO2活化過程活化,用ZnCl2、H3PO4和KOH進行化學(xué)活化。大塊石墨烯材料的氣孔率明顯依賴于活化方法。最高表面積的大塊材料是通過KOH活化獲得的,僅有KOH的活化是有效的對生產(chǎn)表面積在1760-2150m2g-1的大塊石墨烯材料。提出了用KOH方法活化的孔形成機理。這項工作提供了一種很有前景的方法制備孔結(jié)構(gòu)可調(diào)的納米多孔碳。 想獲得更多資源可點擊鏈接http://www.tjdrfk.com/news/wedfvbghnj.html 圖片4.jpg 圖片1.jpg 圖片2.jpg 圖片3.jpg |
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