La0.8Sr0.2Ga0.8Mg0.2O3-(LSGM) based fuel cells infiltrated with different metal catalysts were fabricated and tested both in H2 and CH4/CO2mixture. Ni, Co, Ni-Cu, Ni-Co LSGM impregnated powders were investigated for the dry reforming of methane reaction (DRM) (CH4+CO2-->2CO+2H2). The catalytic activity for CH4 and CO2 conversion followed the order Ni>Ni-Co>Co>Ni-Cu. Both Ni and Ni-Co catalysts, investigated versus time (50 hours) on stream of CH4/CO2=1.5 at 800°C, did not show any sign of deactivation indicating their stability toward coke deposition. Anyway, evidence of few carbon filaments was revealed by SEM micrographs and the carbon amount evaluated by TGDTA analysis. Ni-LSGM and Ni-CoLSGM cells showed regarding electrochemical performance both in H2 and CH4/CO2 mixture in the 650-750°C temperature range. A discussion on the parallelism between catalytic and electrochemical performance is detailed.
Di Bartolomeo, E., Basoli, F., Luisetto, I., Tuti, S., Zurlo, F., Licoccia, S. (2016). Ni and Ni-Co La0.8Sr0.2Ga0.8Mg0.2O3−δ infiltrated cells in H2and CH4/CO2 mixture. APPLIED CATALYSIS. B, ENVIRONMENTAL, 191, 1-7 [10.1016/j.apcatb.2016.03.010].
Ni and Ni-Co La0.8Sr0.2Ga0.8Mg0.2O3−δ infiltrated cells in H2and CH4/CO2 mixture
LUISETTO, IGOR;TUTI, SIMONETTA;
2016-01-01
Abstract
La0.8Sr0.2Ga0.8Mg0.2O3-(LSGM) based fuel cells infiltrated with different metal catalysts were fabricated and tested both in H2 and CH4/CO2mixture. Ni, Co, Ni-Cu, Ni-Co LSGM impregnated powders were investigated for the dry reforming of methane reaction (DRM) (CH4+CO2-->2CO+2H2). The catalytic activity for CH4 and CO2 conversion followed the order Ni>Ni-Co>Co>Ni-Cu. Both Ni and Ni-Co catalysts, investigated versus time (50 hours) on stream of CH4/CO2=1.5 at 800°C, did not show any sign of deactivation indicating their stability toward coke deposition. Anyway, evidence of few carbon filaments was revealed by SEM micrographs and the carbon amount evaluated by TGDTA analysis. Ni-LSGM and Ni-CoLSGM cells showed regarding electrochemical performance both in H2 and CH4/CO2 mixture in the 650-750°C temperature range. A discussion on the parallelism between catalytic and electrochemical performance is detailed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
