Comparison of Fe/Al2O3 and Fe,Co/Al2O3 catalysts used for production of carbon nanotubes from acetylene by CCVD

被引：1

作者：

Kónya, Z ^{[1
]}

Vesselényi, I ^{[1
]}

Lázár, K ^{[1
]}

Kiss, J ^{[1
]}

Kiricsi, I ^{[1
]}

机构：

[1] Univ Szeged, Appl & Environm Chem Dept, H-6720 Szeged, Hungary

来源：

NANOTECHNOLOGY | 2003年 / 5118卷

关键词：

iron containing alumina supported catalyst; nanotubes; Mossbauer spectroscopy; XPS spectroscopy;

D O I：

10.1117/12.501324

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Characterization of iron containing alumina supported catalysts was performed by TEM, Mossbauer and XPS spectroscopy during formation of multiwall carbon nanotubes from acetylene at 1000 K TEM images showed that carbon fibers (outer diameter is around 20-40 mn) were generated on Fe/Al2O3 Samples while on the bimetallic Fe,Co/Al2O3 carbon nanotubes with an average diameter of 8-12 nm were formed. XPS spectra revealed that Fe-Co alloy formed during the interaction. of Fe,Co/Al2O3 and acetylene at 1000 K. The formation of the bimetallic alloy was proven by Mossbauer spectroscopy as well.

引用

页码：296 / 304

页数：9

共 24 条

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