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Materials 2014, 7(10), 7039-7047; doi:10.3390/ma7107039

Decomposition of Cyclohexane on Ni3Al Thin Foil Intermetallic Catalyst

1
Department of Advanced Materials and Technologies, Faculty of Advanced Technologies and Chemistry, Military University of Technology, Kaliskiego 2 Str., 00-908 Warszawa, Poland
2
Department of Nanophysics, Istituto Italiano di Tecnologia, via Morego 30, I-16163 Genova, Italy
3
Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warszawa, Poland
*
Author to whom correspondence should be addressed.
Received: 28 August 2014 / Revised: 9 October 2014 / Accepted: 10 October 2014 / Published: 17 October 2014
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Abstract

Micro-grained thin foils made of Ni3Al intermetallic alloy were fabricated, according to a previously described procedure, and tested as catalyst for decomposition of cyclohexane. The conversion efficiency of the catalyst was evaluated in a synthetic air atmosphere, and found to be as high as 98.7% ± 1.0% at 600 °C and 86.7% ± 3.6% at 500 °C. During the reaction, the growth of carbon nanofibers on the catalysts surface was observed. The chemical and phase composition of the nanofibers was investigated with scanning electron microscopy (SEM), energy dispersive spectrometry (EDS) and X-ray diffraction (XRD), finding them to be made of graphitic carbon. Additionally, nanoparticles of nickel appear to be incorporated in the fibers. The obtained material is promising for large scale fabrication in industrial applications because of its high efficiency in the hydrocarbon decomposition, the simple fabrication procedure, and the form of self-supporting foils with the presence of additional carbon nanofibers that increase its efficiency. View Full-Text
Keywords: nickel aluminides; Ni3Al intermetallic alloy; catalysis; cyclohexane nickel aluminides; Ni3Al intermetallic alloy; catalysis; cyclohexane
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Jóźwik, P.; Salerno, M.; Stępniowski, W.J.; Bojar, Z.; Krawczyk, K. Decomposition of Cyclohexane on Ni3Al Thin Foil Intermetallic Catalyst. Materials 2014, 7, 7039-7047.

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