Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5147359 | International Journal of Hydrogen Energy | 2017 | 12 Pages |
Abstract
Nanoparticles of about 1.4-1.7Â nm surface average diameter were detected for the reduced and used solids indicating that Rh is well dispersed and sintering was not produced after the catalytic tests. Rh particle sizes calculated by CO chemisorption were coincident with those measured by Transmission Electron Microscopy. Characterization by this technique and Laser Raman Spectroscopy of the solids used in membrane reactor revealed the formation of scarce carbon filaments. However, a surface re-oxidation was detected in the low loading catalyst used in the membrane reactor suggesting that it is the main cause for the decrease in the activity of the highly dispersed catalyst.
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Authors
Betina Faroldi, John Múnera, Juan Manuel Falivene, Inmaculada RodrÃguez Ramos, Álvaro Gutiérrez GarcÃa, Loreto Tejedor Fernández, Silvia González Carrazán, Laura Cornaglia,