http://www.cnr.it/ontology/cnr/individuo/prodotto/ID18533
Novel Ru/La0.75Sr0.25Cr0.5 Mn0.5O3 catalysts for propane reforming in IT-SOFCs (Articolo in rivista)
- Type
- Label
- Novel Ru/La0.75Sr0.25Cr0.5 Mn0.5O3 catalysts for propane reforming in IT-SOFCs (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Alternative label
Barison S. , Fabrizio M. , Mortalò C. , Antonucci P.L. , Modafferi V., Gerbasi R. (2010)
Novel Ru/La0.75Sr0.25Cr0.5 Mn0.5O3 catalysts for propane reforming in IT-SOFCs
in Solid state ionics (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Barison S. , Fabrizio M. , Mortalò C. , Antonucci P.L. , Modafferi V., Gerbasi R. (literal)
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- Rivista
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- a CNRIENI, PADOVA
b Department of Mechanics and Materials, University of Reggio Calabria, Località Feo di Vito
c CNRICIS, PADOVA (literal)
- Titolo
- Novel Ru/La0.75Sr0.25Cr0.5 Mn0.5O3 catalysts for propane reforming in IT-SOFCs (literal)
- Abstract
- The La0.75 Sr0.25 Cr0.5 Mn0.5 O3-´ (LSCM) catalyst and the novel Ru/La0.75 Sr0.25 Cr0.5 Mn0.5 O3-´ composite were investigated as alternative anodes for the direct utilization of propane in anode-supported solid oxide fuel cells. In particular, their synthesis and performance in direct propane reforming were studied. The LSCM powders were prepared by a solgel method based on a modified Pechini procedure. Single-phase LSCM perovskite powders were obtained. SEM micrographs of the LSCM powders revealed particles in the 200300 nm range with a homogeneous grain distribution. The deposition of 5 wt.% metallic ruthenium nanoparticles on the LSCM perovskite powders was carried out by a microwave-assisted procedure. TEM investigations of Ru/LSCM composites showed a homogeneous distribution of metallic ruthenium nanoparticles with a mean grain size of around 23 nm. The catalytic activity of these potential anode materials was investigated for the following propane reforming processes: steam reforming (SR), autothermal reforming (ATR) and partial oxidation (POX) at 600, 700 and 800 °C. Very high propane conversion rates were observed under POX and ATR conditions at 700 and 800 °C for both the LSCM and Ru/LSCM compounds (> 92 at 700 °C and > 98% at 800 °C), whereas in the steam reforming environment, a satisfactory conversion was achieved only at 800 °C. The ruthenium presence was found to strongly improve the selectivity for H2 and syngas production for all of the experiments performed, reaching an approximately 90% syngas yield. Finally, good chemical stability after the catalytic tests was demonstrated for the LSCM and Ru/LSCM anode materials (literal)
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