奈米材料的製造方法

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

105131131

專利證號

I 614210

專利獲證名稱

奈米材料的製造方法

專利所屬機關 (申請機關)

國立臺灣科技大學

獲證日期

2018/02/11

技術說明

本發明是為一結合高效率的物理製程及高分散能力的化學配方達到高產率及高品質的奈米材料生產。本發明係為利用球磨機為主要物理作用力合成奈米材料，並在物理剪應力(shear force)製程之前導入其他物理作用力(超音波震盪、高速攪拌)增加生產能力，同時藉由具高分散能力的化學配方來增強奈米材料的產率。此生產技術具有簡易的操作程序，生產速率快以及純化步驟簡單性等優點，因此可以大量化生產高產率高品質的奈米材料。 Here we report the scalable production of single- and few-layer graphene nanosheets with low defect densities by an efficient water-assisted mechanochemical exfoliation of graphite in N-methyl pyrrolidinone (NMP). The mechanochemical exfoliation could be further improved by applying high-speed homogenization and ultrasonication as pretreatments. It was found that the former step homogenized the graphite-solvent solution while the latter provided sufficient energy to weaken the van der Waals interactions and promoted the intercalation of solvent molecules into the graphene sheets within bulk graphites. Significantly, when NMP with water was employed as the cosolvent in the mechanochemical exfoliation, it was found to be possible to produce graphene nanosheets with less defect.

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