Probing the Structure of Carbon Nanohorn Aggregates by Adsorbing Gases of Different Sizes

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• 作者：Vaiva Krungleviciute ; M. Mercedes Calbi ; Jeff A. Wagner ; Aldo D. Migone ; Masako Yudasaka ; Sumio Iijima
• 刊名：Journal of Physical Chemistry C
• 出版年：2008
• 出版时间：April 17, 2008
• 年：2008
• 卷：112
• 期：15
• 页码：5742 - 5746
• 全文大小：236K
• 年卷期：v.112,no.15(April 17, 2008)
• ISSN：1932-7455

文摘

We explore the adsorption behavior of Ne and CF₄ in as-produced carbon nanohorn aggregates using adsorptionmeasurements and computer simulations. Despite the difference in specific surface area observed for thesegases, the isotherms for both gases show the presence of two substeps before monolayer completion. Withthe aid of computer simulations, we conclude that this universal behavior is the result of adsorption in interstitialspaces of varying dimension in the aggregates.