Journal Title
Title of Journal: Top Catal
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Abbravation: Topics in Catalysis
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Authors: Andressa A A da Silva Mauro C Ribeiro Donald C Cronauer A Jeremy Kropf Christopher L Marshall Pei Gao Gary Jacobs Burtron H Davis Fábio B Noronha Lisiane V Mattos
Publish Date: 2013/11/21
Volume: 57, Issue: 6-9, Pages: 637-655
Abstract
The performance of catalysts derived from LaCo1−xCuxO3 x = 00 or 02 perovskitetype oxides for steam reforming SR and oxidative SR of ethanol at 773 K was evaluated All catalysts deactivated during SR of ethanol In the absence of Cu the increase of calcination temperature from 873 to 1073 K did not affect the stability of the samples On the other hand for the samples containing Cu it was detected a higher rate of deactivation when the calcination temperature was increased The loss of activity of LaCoO3 was attributed to the oxidation of Co metallic particles and amorphous carbon formation as revealed by in situ XAFS and thermogravimetric analyses The addition of Cu favored the formation of carbon filaments Moreover the presence of oxygen in the feed decreased the carbon formation improving the stability of the catalystsAndressa A A da Silva and Mauro C Ribeiro acknowledge the scholarship received from CNPq This work received financial support of CTENERG/FINEP0104052500 The authors thank also LNLS for the support and beamline time under project D04BXAFS1 14405 The work carried out at the CAER was supported in part by funding from the Commonwealth of Kentucky Argonne’s research was supported in part by the US Department of Energy DOE Office of Fossil Energy National Energy Technology Laboratory NETLunder Project AA1015 4926100107 The use of the Advanced Photon Source was supported by the US Department of Energy Office of Science Office of Basic Energy Sciences under Contract DEAC0206CH11357 MRCAT operations are supported by the Department of Energy and MRCAT member institutions
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