A novel hybrid carbon material
A novel hybrid carbon material
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DOI：
10.1038/nnano.2007.37
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发表时间：
2007-03-01
影响因子：
38.3
通讯作者：
Kauppinen, Esko I.
中科院分区：
文献类型：
--
作者：
Nasibulin, Albert G.;Pikhitsa, Peter V.;Kauppinen, Esko I.
富勒烯和单壁碳纳米管(SWNTs)都表现出许多有利的性质。尽管这两种形式的碳有相似之处，但很少有人尝试将它们物理地合并(2，3)。我们发现了一种新型的杂化材料，它将富勒烯和单壁碳纳米管结合成一个单一的结构，其中富勒烯以共价键连接到单壁碳纳米管的外表面。这些富勒烯功能化的单壁碳纳米管，我们称之为纳米芽，是通过两种不同的一步连续方法选择性地合成的，在此过程中，富勒烯与碳纳米管在CO歧化过程中一起在铁催化剂颗粒上生成。纳米芽的场发射特性表明，与单壁纳米管或富勒烯相比，它们可能具有优势的性质，或者在它们的非键合结构中。
Both fullerenes and single-walled carbon nanotubes (SWNTs) exhibit many advantageous properties(1). Despite the similarities between these two forms of carbon, there have been very few attempts to physically merge them(2,3). We have discovered a novel hybrid material that combines fullerenes and SWNTs into a single structure in which the fullerenes are covalently bonded to the outer surface of the SWNTs. These fullerene-functionalized SWNTs, which we have termed NanoBuds, were selectively synthesized in two different one-step continuous methods, during which fullerenes were formed on iron-catalyst particles together with SWNTs during CO disproportionation. The field-emission characteristics of NanoBuds suggest that they may possess advantageous properties compared with single-walled nanotubes or fullerenes alone, or in their non-bonded configurations.