Electrocatalytic performances of Ni/SDC anodes fabricated with EPD techniques for direct oxidation of CH4 in solid oxide fuel cells

Asamoto, Makiko; Miyake, Shingo; Itagaki, Yoshiteru; Sadaoka, Yoshihiko; Yahiro, Hidenori

doi:10.1016/j.cattod.2008.08.027

Cited by 19 publications

(17 citation statements)

References 17 publications

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“…At high temperatures ( > 300 °C, mostly > 600 °C), the oxidation of CH 4 is often carried out in a solid oxide fuel cell (SOFC) reactor [21,[24][25][26][27][28][29][30] . The reactor mainly consists of two porous electrodes (i.e., anode and cathode) and a dense solid oxide electrolyte.…”

Section: High-temperature Reactionmentioning

confidence: 99%

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Selective electrocatalytic conversion of methane to fuels and chemicals

Xie

Lin

Zhang

et al. 2018

Journal of Energy Chemistry

121

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Section: High-temperature Reactionmentioning

confidence: 99%

“…In the SOFC reactor, CH 4 would be easily converted into CO 2 directly [24][25][26] . The partial oxidation of CH 4 to syngas (CO/H 2 ) can also be achieved at high temperatures [27][28][29] .…”

Section: High-temperature Reactionmentioning

confidence: 99%

Selective electrocatalytic conversion of methane to fuels and chemicals

Xie

Lin

Zhang

et al. 2018

Journal of Energy Chemistry

121

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“…Furthermore, CH 4 and CO 2 are known as major components of biogas. The direct utilization of CH 4 /CO 2 in SOFCs also constitutes a promising route to electricity generation from renewable resources [14][15][16] Table 1 summarizes the electrochemical performance and impedance characteristics of CH 4 /CO 2 -SOFCs reported in the literature. All of these cells produced the OCV (open circuit voltage) around 1 V, in the vicinity of the theoretically reversible cell voltage for the electrochemical oxidation of CH 4 , CO, and H 2 [17,18].…”

Section: Introductionmentioning

confidence: 99%

Diffusion-limited electrochemical oxidation of H2/CO on Ni-anode catalyst in a CH4/CO2-solid oxide fuel cell

2016

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CH 4 /CO 2-solid oxide fuel cell (SOFC) and CH 4-SOFC have been studied at 750, 800 and 850 °C using a Ni anode, which is comprised of a porous Ni/ScSZ (Scandium-Stabilized Zirconia) catalyst interlayer and a porous Ni/YSZ (Yttrium-Stabilized Zirconia) anode support. CH 4 /CO 2-SOFC denotes direct feeding CH 4 /CO 2 to the anode chamber; and CH 4-SOFC denotes direct feeding CH 4. At open circuit, CH 4 /CO 2-SOFC gave a lower anode activation loss (i.e., polarization) than CH 4-SOFC. Analysis of product profiles revealed that CH 4-and CH 4 /CO 2-SOFC produced electricity from different reaction pathways. The performance of an anodesupported CH 4 /CO 2-SOFC was diffusion-limited at temperatures above 800 °C. H 2 /CO produced from CH 4 dry reforming on the Ni/YSZ support became limiting reactants for electrochemical oxidation on the Ni/ScSZ catalyst interlayer. Electrochemical oxidation of CO is more diffusion-limited than that of H 2 because of its molecular size.

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“…After Pt past was painted on one surface of electrolyte pellet, followed by heat-treatment at 1000 o C for 30 min, Ni-MO[x]/SDC samples were deposited on opposite surface of electrolyte pellet by EPD technique (10). The thicknesses of Ni-MO[x]/SDC electrodes were unified to be ca.…”

Section: Measurements Of Electrochemical Performance Of Modified Ni/smentioning

confidence: 99%

Improvement of Ni/SDC Anode by Alkaline Earth Metal Oxide Addition for Direct Methane-SOFC

et al. 2009

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The anodic performances of Ni/CeO 2 -Sm 2 O 3 (Ni/SDC) modified by the addition of alkaline earth metal oxides (MgO, CaO, SrO, and BaO) were investigated for direct oxidation of CH 4 in solid oxide fuel cells (SOFCs). Although the initial power density of cell with Ni/SDC anode modified by the addition of CaO (Ni-CaO/SDC) was slightly lower than that of cell with Ni/SDC, the former anode exhibited an excellent stability compared to the latter one. After continuous operation of SOFC for 24 h, no or less amount of carbon deposition was observed over Ni-CaO/SDC.

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Electrocatalytic performances of Ni/SDC anodes fabricated with EPD techniques for direct oxidation of CH4 in solid oxide fuel cells

Cited by 19 publications

References 17 publications

Selective electrocatalytic conversion of methane to fuels and chemicals

Selective electrocatalytic conversion of methane to fuels and chemicals

Diffusion-limited electrochemical oxidation of H2/CO on Ni-anode catalyst in a CH4/CO2-solid oxide fuel cell

Improvement of Ni/SDC Anode by Alkaline Earth Metal Oxide Addition for Direct Methane-SOFC

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