Carbon supported catalysts in low temperature steam reforming of ethanol: study of catalyst performance

Anne-Riikka Rautio; Prem Kumar Seelam; Päivi Mäki-Arvela; Olli Pitkänen; Mika Huuhtanen; Riitta L. Keiski; Krisztian Kordas

doi:10.1039/C5RA07282D

Carbon supported catalysts in low temperature steam reforming of ethanol: study of catalyst performance

Anne-Riikka Rautio, Prem Kumar Seelam, Päivi Mäki-Arvela, Olli Pitkänen, Mika Huuhtanen, Riitta L. Keiski, Krisztian Kordas

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Abstract

Three different metals (Pt, Pd and Ni) on multi-walled carbon nanotube and graphite supports were tested as catalysts in ethanol reforming experiments at low temperatures. The carbon nanotube based catalysts outperformed their counterparts supported on graphite in both ethanol conversion and hydrogen evolution. The palladium catalyst in both supports was rather inactive, whereas the nickel/nickel oxide catalyst showed excellent performance. The most active catalyst (Ni/CNT) showed ethanol conversion and hydrogen evolution already at 200 °C with complete conversion at 450 °C. The measured selectivity for H₂ production was ∼42% with almost 100% conversion. Analysis of the spent catalyst samples revealed a considerable increase in carbon concentration caused by the formation of soot and coke on each sample but also carbon nanofibers and nanotubes were found to grow on the catalyst nanoparticles in the course of the steam reforming reactions.

Original language	Undefined/Unknown
Pages (from-to)	49487–49492
Journal	RSC Advances
Volume	5
Issue number	61
DOIs	https://doi.org/10.1039/C5RA07282D
Publication status	Published - 2015
MoE publication type	A1 Journal article-refereed

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10.1039/C5RA07282D

http://pubs.rsc.org/en/content/articlelanding/2015/ra/c5ra07282d#!divAbstract

Cite this

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title = "Carbon supported catalysts in low temperature steam reforming of ethanol: study of catalyst performance",

abstract = "Three different metals (Pt, Pd and Ni) on multi-walled carbon nanotube and graphite supports were tested as catalysts in ethanol reforming experiments at low temperatures. The carbon nanotube based catalysts outperformed their counterparts supported on graphite in both ethanol conversion and hydrogen evolution. The palladium catalyst in both supports was rather inactive, whereas the nickel/nickel oxide catalyst showed excellent performance. The most active catalyst (Ni/CNT) showed ethanol conversion and hydrogen evolution already at 200 °C with complete conversion at 450 °C. The measured selectivity for H2 production was ∼42% with almost 100% conversion. Analysis of the spent catalyst samples revealed a considerable increase in carbon concentration caused by the formation of soot and coke on each sample but also carbon nanofibers and nanotubes were found to grow on the catalyst nanoparticles in the course of the steam reforming reactions.",

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AU - Rautio, Anne-Riikka

AU - Kumar Seelam, Prem

AU - Mäki-Arvela, Päivi

AU - Pitkänen, Olli

AU - Huuhtanen, Mika

AU - Keiski, Riitta L.

AU - Kordas, Krisztian

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AB - Three different metals (Pt, Pd and Ni) on multi-walled carbon nanotube and graphite supports were tested as catalysts in ethanol reforming experiments at low temperatures. The carbon nanotube based catalysts outperformed their counterparts supported on graphite in both ethanol conversion and hydrogen evolution. The palladium catalyst in both supports was rather inactive, whereas the nickel/nickel oxide catalyst showed excellent performance. The most active catalyst (Ni/CNT) showed ethanol conversion and hydrogen evolution already at 200 °C with complete conversion at 450 °C. The measured selectivity for H2 production was ∼42% with almost 100% conversion. Analysis of the spent catalyst samples revealed a considerable increase in carbon concentration caused by the formation of soot and coke on each sample but also carbon nanofibers and nanotubes were found to grow on the catalyst nanoparticles in the course of the steam reforming reactions.

U2 - 10.1039/C5RA07282D

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