Yttria-stabilized zirconia (YSZ) supported Ni–Co alloys (precursor of SOFC anodes) as catalysts for the steam reforming of ethanol

Resini, Carlo; Herrera, Concepción; Presto, Sabrina; Alemany, Luı́s J.; Riani, Paola; Marazza, R.; Ramis, Gianguido; Busca, Guido

doi:10.1016/j.ijhydene.2008.04.044

Cited by 102 publications

(39 citation statements)

References 27 publications

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“…Although in the ethanol steam reforming the promoter effect of Cu was less promising, enhanced stability was observed in the two experiments, indicating a positive role was played by the Cu-Ni bimetallic catalysts. The effect of the addition of Co on the catalytic activity of Ni/YSZ catalyst for the ethanol steam reforming reaction was also studied by Resini et al [51]. The addition of Co resulted in the inhibition of the dehydration reaction, as well as of methane production.…”

Section: Catalytic Activity Of Ni-au Catalysts and Comparison With Otmentioning

confidence: 98%

“…The discrepancy between the observed and theoretical cell parameters suggests that, also in this case, two metal phase alloys could be present. The effect of the addition of Co on Ni-based systems was also studied [51,52]. Ni-Co catalysts with different composition Ni (1−x )Co x (x = 0, 0.32, 0.5) were prepared on yttria-stabilised zirconia (YSZ) as catalysts for ethanol steam reforming.…”

Section: Ni Metal Particles Modified With Other Metals (Sn Cu Co Mmentioning

confidence: 99%

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Ni-Based Catalysts for Low Temperature Methane Steam Reforming: Recent Results on Ni-Au and Comparison with Other Bi-Metallic Systems

et al. 2013

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Steam reforming of light hydrocarbons provides a promising method for hydrogen production. Ni-based catalysts are so far the best and the most commonly used catalysts for steam reforming because of their acceptably high activity and significantly lower cost in comparison with alternative precious metal-based catalysts. However, nickel catalysts are susceptible to deactivation from the deposition of carbon, even when operating at steam-to-carbon ratios predicted to be thermodynamically outside of the carbon-forming regime. Reactivity and deactivation by carbon formation can be tuned by modifying Ni surfaces with a second metal, such as Au through alloy formation. In the present review, we summarize the very recent progress in the design, synthesis, and characterization of supported bimetallic Ni-based catalysts for steam reforming. The progress in the modification of Ni with noble metals (such as Au and Ag) is discussed in terms of preparation, characterization and pretreatment methods. Moreover, the comparison with the effects of other metals (such as Sn, Cu, Co, Mo, Fe, Gd and B) is addressed. The differences of catalytic activity, thermal stability and carbon species OPEN ACCESSCatalysts 2013, 3 564 between bimetallic and monometallic Ni-based catalysts are also briefly shown.

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Section: Catalytic Activity Of Ni-au Catalysts and Comparison With Otmentioning

confidence: 98%

Section: Ni Metal Particles Modified With Other Metals (Sn Cu Co Mmentioning

confidence: 99%

Ni-Based Catalysts for Low Temperature Methane Steam Reforming: Recent Results on Ni-Au and Comparison with Other Bi-Metallic Systems

et al. 2013

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“…In very recent times a number of different formulations have been studied and proposed for Co catalysts for ESR, such as unsupported Co oxides [14e16], Co/CeO 2 [19,23,24], Co/SiO 2 [16,25], Co/Al 2 O 3 [25,26], Co/CaOeAl 2 O 3 [27], Co/MgO [26], coprecipitated [20,21] or impregnated Co/MgOeAl 2 O 3 [26], Co/ ZnO [24,28], coprecipitated Co/ZnOeAl 2 O 3 [18], Co/ZrO 2 [27] and Co/ZrO 2 eZnO [29], Co/TiO 2 [24], Co/talc [30], etc. Furthermore, promoting cobalt or alloying it with other metals such as Ni [18,27,31], Ru [32], Ir [24], Fe [17,28], Cu, Cr, Na [28] and K [20], is also under investigation.…”

Section: Introductionmentioning

confidence: 99%

Cobalt-based nanoparticles as catalysts for low temperature hydrogen production by ethanol steam reforming

Garbarino

Riani

Lucchini

et al. 2013

International Journal of Hydrogen Energy

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“…The same authors reported the highest activity for the anodic oxidation of methane for the composition Ni 0.5 Co 0.5 -YSZ. Further confirmations of Co effect on reduction of carbon formation derive also from study on catalytic activity of yttriastabilized zirconia (YSZ) supported Ni-Co alloys in the steam reforming of ethanol [13]. In that case the methane is an intermediate product of the steam reforming reaction, and the carbon deposition on Ni x Co x -YSZ catalyst is less than the case in which YSZ supported Ni catalyst is used.…”

Section: Introductionmentioning

confidence: 96%

Electrochemical performance of Ni-based anodes for solid oxide fuel cells

et al. 2009

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The catalytic activity of Ni-based anodic materials was investigated in complete solid oxide fuel cells (SOFCs) by electrochemical analysis. Button cells, consisting of supporting yttria-stabilized zirconia (YSZ) electrolyte layer, (La1-xSrx)y MnO3 (LSM) cathode and (cermet) Ni0.5Co0.5–YSZ anode were employed. Powders for anodes were obtained by wet impregnation. This pro- cedure allowed easy production of composite electrodes with homogeneous distribution of phases and controlled microstructure. Two electrodes impedance spectroscopy was carried out at different temperatures and partial pres- sures of reacting gases in order to evaluate contribution of each component to overall cell losses. Current–voltage characteristic curves were also collected. Feeding with CH4 was tested and compared to H2. No deterioration of cell performance due to carbon formation at anode was observed over a test period of 100 h

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Yttria-stabilized zirconia (YSZ) supported Ni–Co alloys (precursor of SOFC anodes) as catalysts for the steam reforming of ethanol

Cited by 102 publications

References 27 publications

Ni-Based Catalysts for Low Temperature Methane Steam Reforming: Recent Results on Ni-Au and Comparison with Other Bi-Metallic Systems

Ni-Based Catalysts for Low Temperature Methane Steam Reforming: Recent Results on Ni-Au and Comparison with Other Bi-Metallic Systems

Cobalt-based nanoparticles as catalysts for low temperature hydrogen production by ethanol steam reforming

Electrochemical performance of Ni-based anodes for solid oxide fuel cells

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