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.
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页码：296 / 304
页数：9
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