Hierarchically Structured Fullerene C70 Cube for Sensing Volatile Aromatic Solvent Vapors

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• 作者：Partha Bairi ; Kosuke Minami ; Waka Nakanishi ; Jonathan P. Hill ; Katsuhiko Ariga ; Lok Kumar Shrestha
• 刊名：ACS Nano
• 出版年：2016
• 出版时间：July 26, 2016
• 年：2016
• 卷：10
• 期：7
• 页码：6631-6637
• 全文大小：436K
• 年卷期：0
• ISSN：1936-086X

文摘

We report the preparation of hierarchically structured fullerene C₇₀ cubes (HFC) composed of mesoporous C₇₀ nanorods with crystalline pore walls. Highly crystalline cubic shape C₇₀ crystals (FC) were grown at a liquid–liquid interface formed between tert-butyl alcohol and C₇₀ solution in mesitylene. HFCs were then prepared by washing with isopropanol of the FC at 25 °C. The growth directions and diameters of C₇₀ nanorods could be controlled by varying washing conditions. HFCs perform as an excellent sensing system for vapor-phase aromatic solvents due to their easy diffusion through the mesoporous architecture and strong π–π interactions with the sp² carbon-rich pore walls. Moreover, HFCs offer an enhanced electrochemically active surface area resulting in an energy storage capacity 1 order of magnitude greater than pristine C₇₀ and fullerene C₇₀ cubes not containing mesoporous nanorods.