Surface State and Catalytic Performance of Ceria-Supported Cobalt Catalysts in the Steam Reforming of Ethanol

ChemCatChem ◽  
2017 ◽  
Vol 9 (5) ◽  
pp. 782-797 ◽  
Author(s):  
Sylwia Turczyniak ◽  
Magdalena Greluk ◽  
Grzegorz Słowik ◽  
Wojciech Gac ◽  
Spyridon Zafeiratos ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Surface State ◽  
Catalytic Performance ◽  
Cobalt Catalysts ◽  
Steam Reforming Of Ethanol ◽  
Supported Cobalt Catalysts

In situ magnetic characterisation of supported cobalt catalysts under steam-reforming of ethanol

2003 ◽  
Vol 243 (2) ◽  
pp. 261-269 ◽  
Author(s):  
Jordi Llorca ◽  
Jean-Alain Dalmon ◽  
Pilar Ramı́rez de la Piscina ◽  
Narcı́s Homs
Keyword(s):  
Steam Reforming ◽  
Cobalt Catalysts ◽  
Steam Reforming Of Ethanol ◽  
Supported Cobalt Catalysts

Characterization of the activity and stability of supported cobalt catalysts for the steam reforming of ethanol

2003 ◽  
Vol 124 (1) ◽  
pp. 99-103 ◽  
Author(s):  
Marcelo S Batista ◽  
Rudye K.S Santos ◽  
Elisabete M Assaf ◽  
José M Assaf ◽  
Edson A Ticianelli
Keyword(s):  
Steam Reforming ◽  
Cobalt Catalysts ◽  
Steam Reforming Of Ethanol ◽  
Supported Cobalt Catalysts

scholarly journals Sustainable Production of Hydrogen by Steam Reforming of Ethanol Using Cobalt Supported on Nanoporous Zeolitic Material

Nanomaterials ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1934
Author(s):  
Javier Francisco da Costa-Serra ◽  
Maria Teresa Navarro ◽  
Fernando Rey ◽  
Antonio Chica
Keyword(s):  
Steam Reforming ◽  
Zeolite Y ◽  
Cobalt Catalysts ◽  
Coke Deposition ◽  
Bet Surface Area ◽  
Ethanol Conversion ◽  
Y Zeolite ◽  
Steam Reforming Of Ethanol ◽  
Production Of Hydrogen ◽  
Hydrogen Selectivity

Cobalt catalysts supported on Y zeolite and mesoporized Y zeolite (Y-mod) have been studied in steam reforming of ethanol (SRE). Specifically, the effect of the mesoporosity and the acidity of the y zeolite as a support has been explored. Mesoporous were generated on Y zeolite by treatment with NH4F and the acidity was neutralized by Na incorporation. Four cobalt catalysts supported on Y zeolite have been prepared, two using Y zeolite without mesoporous (Co/Y, Co/Y-Na), and two using Y zeolite with mesoporous (Co/Y-mod and Co/Y-mod-Na). All catalysts showed a high activity, with ethanol conversion values close to 100%. The main differences were found in the distribution of the reaction products. Co/Y and Co/Y-mod catalysts showed high selectivity to ethylene and low hydrogen production, which was explained by their high acidity. On the contrary, neutralization of the acid sites could explain the higher hydrogen selectivity and the lower ethylene yields exhibited by the Co/Y-Na and Co/Y-mod-Na. In addition, the physicochemical characterization of these catalysts by XRD, BET surface area, temperature-programmed reduction (TPR), and TEM allowed to connect the presence of mesoporous with the formation of metallic cobalt particles with small size, high dispersion, and with high interaction with the zeolitic support, explaining the high reforming activity exhibited by the co/y-mod-Na sample as well as its higher hydrogen selectivity. It has been also observed that the formation of coke is affected by the presence of mesoporous and acidity. Both properties seem to have an opposite effect on the reforming catalyst, decreasing and increasing the coke deposition, respectively.

scholarly journals Effect of the surface state on the catalytic performance of a Co/CeO2 ethanol steam-reforming catalyst

2016 ◽  
Vol 340 ◽  
pp. 321-330 ◽  
Author(s):  
Sylwia Turczyniak ◽  
Detre Teschner ◽  
Andrzej Machocki ◽  
Spyridon Zafeiratos
Keyword(s):  
Steam Reforming ◽  
Surface State ◽  
Catalytic Performance ◽  
Ethanol Steam Reforming ◽  
Reforming Catalyst ◽  
Ethanol Steam

Effects of Ceria Morphology on Catalytic Performance of Ni/CeO2 Catalysts for Low Temperature Steam Reforming of Ethanol

2015 ◽  
Vol 58 (4-6) ◽  
pp. 281-294 ◽  
Author(s):  
Tamara Siqueira Moraes ◽  
Raimundo Crisostomo Rabelo Neto ◽  
Mauro Celso Ribeiro ◽  
Lisiane Veiga Mattos ◽  
Marios Kourtelesis ◽  
...  
Keyword(s):  
Low Temperature ◽  
Steam Reforming ◽  
Catalytic Performance ◽  
Steam Reforming Of Ethanol

Alumina and Alumina–Baria Supported Cobalt Catalysts for DeNO x : Influence of the Support and Cobalt Content on the Catalytic Performance

2009 ◽  
Vol 52 (13-20) ◽  
pp. 1826-1831 ◽  
Author(s):  
G. Di Carlo ◽  
L. F. Liotta ◽  
G. Pantaleo ◽  
A. M. Venezia ◽  
G. Deganello
Keyword(s):  
Cobalt Content ◽  
Catalytic Performance ◽  
Cobalt Catalysts ◽  
Supported Cobalt Catalysts
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