Propane reforming on Ni–Ru/GDC catalyst: H2 production for IT-SOFCs under SR and ATR conditions

Modafferi, Vincenza; Panzera, G.; Baglio, V.; Frusteri, F.; Antonucci, P.L.

doi:10.1016/j.apcata.2007.10.006

Cited by 67 publications

(43 citation statements)

References 42 publications

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“…Owing to its capability to produce high hydrogen contents, the SR method has been widely used in industrial processes. Nickel-based catalysts have known to be highly active for this process, but they have suffered from deactivation by coke formation as well as by sintering of metallic nickel phase under operational conditions [5][6][7][8][9]. The carbon formation can be significantly reduced by replacement of active centers with noble metals, but the cost of the precious metals is still a major drawback for practical use of these catalysts [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Steam Reforming of Propane over Ni/LaAlO3 Catalysts: Influence of Preparation Methods and OSC on Activity and Stability

et al. 2011

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To develop an efficient catalyst for steam reforming of propane, Ni/LaAlO 3 catalysts were prepared by deposition precipitation, impregnation, and solvo-thermal methods, and characterized by XRD, BET, H 2 -TPR, elemental analyses, and TEM. Ni/Al 2 O 3 and Ni/CeO 2 catalysts were also synthesized by the solvo-thermal method for comparison. The Ni/LaAlO 3 catalysts exhibited better catalytic performance than both Ni/Al 2 O 3 and Ni/CeO 2 catalysts, and activities with Ni/LaAlO 3 were found to be dependent upon the preparation methods. In particular, the Ni/LaAlO 3 catalyst synthesized by the solvo-thermal method exhibited the highest activity presumably because tetrahydrofuran helps distribute generated Ni nanoparticles onto the catalyst surface in a uniform fashion. In addition, the solvo-thermally prepared Ni/LaAlO 3 catalyst was found to be highly stable, with its activity being maintained at least during 100 h. The observed high stability is attributed to the excellent oxygen storage capacity of LaAlO 3 , which was first determined by thermogravimetric methods as well as by soot oxidations in the presence of Al 2 O 3 , CeO 2 , and LaAlO 3 . Compared to the Ni/Al 2 O 3 and Ni/CeO 2 catalysts, Ni/LaAlO 3 exhibited suppressed carbon formation even at lower S/C ratios due to the superior oxygen transport ability of the LaAlO 3 support.

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Section: Introductionmentioning

confidence: 99%

Catalytic Steam Reforming of Propane over Ni/LaAlO3 Catalysts: Influence of Preparation Methods and OSC on Activity and Stability

et al. 2011

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“…The performance of Ni/YSZ and Ni/GDC as anodes in H/C fueled SOFCs can be improved by dispersing uniformly small amounts of either transition non-noble-metal additives (Sn, Kan et al, 2009;Kan and Lee, 2010a), Cu Hornés et al, 2007;Sin et al, 2007), Mo (Finnerty et al, 1998;An et al, 2011;Niakolas et al, 2013), Bi (Huang et al, 2009), and Fe (Park and Virkar, 2009;da Paz Fiuza et al, 2010;Kan and Lee, 2010b;Fu et al, 2011) or noble-metal dopands (Ru, Hibino et al, 2003;Modafferi et al, 2008), Pd (Nabae et al, 2006(Nabae et al, , 2008Babaei et al, 2009), Rh (Hibino et al, 2002b;Boaro et al, 2010;Ferrandon et al, 2010), Pt (Hibino et al, 2002a), and Au (Yentekakis, 2006;Gavrielatos et al, 2008;Yentekakis et al, 2008), which appear to be effective at intermediate operating temperatures (Rostrup-Nielsen and Alstrup, 1999;Goodenough and Huang, 2007). The aim of these research efforts was to enhance carbon tolerance and maintain catalytic performance through the formation of bimetallic alloys with Ni on the anode.…”

Section: Introductionmentioning

confidence: 99%

Effect of Au and/or Mo Doping on the Development of Carbon and Sulfur Tolerant Anodes for SOFCs—A Short Review

Niakolas

Neofytidis

Neophytides

2017

Front. Environ. Sci.

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HIGHLIGHTS• The kinetics of CH 4 steam reforming and partial oxidation are determined by the oxidation rate of CH x adsorbed species • The modification of the Ni/YSZ and Ni/GDC with Au and/or Au-Mo results in differentiated structures of atomically dispersed Au and/or Au-Mo at the surface and the bulk of the Ni particles.• At lean S/C NiAu/YSZ selectively oxidizes electrochemically the catalytically produced H 2 and CO, while NiAu/GDC is selective to the direct partial electrochemical oxidation of CH 4 to CO and H 2.• The modified electrodes show significant tolerance to C formation.• Au-Mo modification enhances the intrinsic sulfur tolerance properties of Ni/GDC.The presented work is a short review of the research attempts from our group with collaborators, during the last 15 years, which had as main objective to study and improve the electrocatalytic performance of Ni-based electrode materials for the CH 4 Internal steam Reforming process (ISR.) in Solid Oxide Fuel Cells (SOFCs). In particular, NiO/YSZ and NiO/GDC anode powders were modified with Au and/or Mo nano-particles via different preparation methods. These efforts resulted in anode materials with high tolerance and improved electrocatalytic activity under both carbon forming and sulfur poisoning conditions. The most important findings are being reviewed and critical findings are being highlighted 50 as to stress the key differences in the electrocatalytic performance between Ni/YSZ and Ni/GDC. The possible effects of Au and/or Mo addition on the physicochemical and strucutral properties of the cermets are thoroughly discussed as well as active functional layers in the form of anode SOFC electrodes.

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“…40,115,118,119 Unlike SMR reaction, wherein the activation of the C -H bond of CH 4 is the critical and RDS (Eq. 2.12 ), both C -C bond rupture in propane (Eq.…”

Section: Mechanismmentioning

confidence: 99%

Catalytic Steam Reforming Technology for the Production of Hydrogen and Syngas

Velu¹,

Sharma

Zhang

et al. 2009

Hydrogen and Syngas Production and Purification Technologies

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Propane reforming on Ni–Ru/GDC catalyst: H2 production for IT-SOFCs under SR and ATR conditions

Cited by 67 publications

References 42 publications

Catalytic Steam Reforming of Propane over Ni/LaAlO3 Catalysts: Influence of Preparation Methods and OSC on Activity and Stability

Catalytic Steam Reforming of Propane over Ni/LaAlO3 Catalysts: Influence of Preparation Methods and OSC on Activity and Stability

Effect of Au and/or Mo Doping on the Development of Carbon and Sulfur Tolerant Anodes for SOFCs—A Short Review

Catalytic Steam Reforming Technology for the Production of Hydrogen and Syngas

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