Au/La1−xSrxMnO3 nanocomposite for chemical-energy cogeneration in solid oxide fuel cell reactor

Wiyaratn, Wisitsree; Appamana, Weerinda; Charojrochkul, Sumittra; Kaewkuekool, Sittichai; Assabumrungrat, Suttichai

doi:10.1016/j.jiec.2012.04.011

Cited by 18 publications

(11 citation statements)

References 23 publications

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“…Wiyaratn et al [97] evaluated chemicals and power cogeneration in an Au/LaSrMnO3//YSZ//LaSrMnO3 SOFC reactor. The e.m.f.…”

Section: High Temperature Fuel Cellsmentioning

confidence: 99%

Partial Methane Oxidation in Fuel Cell-Type Reactors for Co-Generation of Energy and Chemicals

Souza¹,

Florio²,

Antolini³

et al. 2022

Preprint

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The conversion of methane into chemicals is of interest to achieve a decarbonized future. Fuel cells are electrochemical devices commonly used to obtain electrical energy, but can be utilized either for chemicals production or both energy and chemicals cogeneration. In this work, the partial oxidation of methane in fuel cells for electricity generation and valuable chemicals production at the same time is reviewed. For this purpose, different types of methane-fed fuel cells, both low temperature fuel cells, such as PEMFCs and AAEMFCs, and high temperature fuel cells, such as SOFCs, have been used. Also if few works have been devoted to this topic, the promising results drive the development of fuel cells using methane as the source for the cogeneration of power and valuable chemicals.

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“…Wiyaratn et al [97] evaluated chemicals and power cogeneration in an Au/LaSrMnO3//YSZ//LaSrMnO3 SOFC reactor. The e.m.f.…”

Section: High Temperature Fuel Cellsmentioning

confidence: 99%

Partial Methane Oxidation in Fuel Cell-Type Reactors for Co-Generation of Energy and Chemicals

Souza¹,

Florio²,

Antolini³

et al. 2022

Preprint

View full text Add to dashboard Cite

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“…For example, adding gold powder to La 1−x Sr x MnO 3 as the anode, the SOFC prepared at 850 °C realized 7% methane conversion and 5.7% C 2+ selectivity. 13 Mixing the gold powder slurry with the anode catalyst Mn−Ce−Na 2 WO 4 /SiO 2 , using scandium-stabilized zirconia as the electrolyte and LSM-SDC as the cathode to prepare a tubular SOFC single cell, achieved 60.7% methane conversion and 41.6% C 2+ selectivity. 14 The current research on the OCM in SOFCs has achieved high C 2+ selectivity, but the single cell electrical properties are still far from the traditional anode.…”

Section: Introductionmentioning

confidence: 99%

“…Adding an appropriate amount of conductive powder such as gold powder to the anode material can effectively improve the electronic conductivity. For example, adding gold powder to La 1– x Sr x MnO 3 as the anode, the SOFC prepared at 850 °C realized 7% methane conversion and 5.7% C 2+ selectivity . Mixing the gold powder slurry with the anode catalyst Mn–Ce–Na 2 WO 4 /SiO 2 , using scandium-stabilized zirconia as the electrolyte and LSM-SDC as the cathode to prepare a tubular SOFC single cell, achieved 60.7% methane conversion and 41.6% C 2+ selectivity .…”

Section: Introductionmentioning

confidence: 99%

Co-Generation of Electricity and Chemicals via Solid Oxide Fuel Cells Using Li-Doped LSGM and LSF Composite Anodes

Liu

Chen

et al. 2023

Energy Fuels

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In this work, co-generation of C2+ hydrocarbons and electricity in solid oxide fuel cells (SOFCs) was realized using methane as fuel. The SOFCs were prepared with Li-La0.8Sr0.2Ga0.8Mg0.2O3−δ (LSGM)/Lr0.7Sr0.3FeO3 (LSF) as the composite anode and LSGM and (La0.6Sr0.4)0.95Co0.2Fe0.8O3−δ (LSCF)/Sm0.2Ce0.8O2−δ (SDC) as the electrolyte and cathode, respectively. Among the anode materials, Li-LSGM has higher C2+ product selectivity. It can be seen from the XPS data that the doping of Li introduces a strong alkaline active center Li+O–, changes the lattice and electronic structure, and increases the surface absorption of oxygen species, which is more conducive to the improvement of the selectivity of C2+ products. LSF has strong electron-conducting ability and high catalytic activity for methane. After mixing with Li-LSGM, XPS data show that more oxygen vacancies are generated, which is beneficial to the electrochemical reaction of the anode and effectively reduces carbon deposition. The maximum power density of the composite anode can reach 188.15 mW/cm–2 with H2 as the fuel at 850 °C, and a C2+ product selectivity of 57.48% is achieved with CH4 as the fuel at 800 °C and the current density is 40 mA/cm–2. In addition, the change of C2+ product selectivity with current density and temperature during cell operation was further investigated, providing enlightenment on how to adjust the output ratio of chemicals and electricity.

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“…In the traditional oxidative coupling reaction of methane, the product depends on the reaction temperature, CH 4 /O 2 reactant composition and reaction kinetics. 18,19 In order to increase the yield and selectivity of C 2 , some scholars propose to combine solid oxide membranes and catalysts to transport oxygen ions from air to the active sites in a controlled manner for improving the efficiency of the conversion of methane to C 2 products. 20,21 The principle is the same as that of the oxygen-ion conducting solid oxide electrolyzers (SOEs).…”

Section: Introductionmentioning

confidence: 99%

A metal–oxide interface enhances the methane oxidative coupling reaction in a solid oxide electrolyzer

et al. 2022

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Au/La1−xSrxMnO3 nanocomposite for chemical-energy cogeneration in solid oxide fuel cell reactor

Cited by 18 publications

References 23 publications

Partial Methane Oxidation in Fuel Cell-Type Reactors for Co-Generation of Energy and Chemicals

Partial Methane Oxidation in Fuel Cell-Type Reactors for Co-Generation of Energy and Chemicals

Co-Generation of Electricity and Chemicals via Solid Oxide Fuel Cells Using Li-Doped LSGM and LSF Composite Anodes

A metal–oxide interface enhances the methane oxidative coupling reaction in a solid oxide electrolyzer

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