Barium-modified NiO–YSZ/NiO–GDC cermet as new anode material for solid oxide fuel cells (SOFC)

Sandoval, María Cristina Parra; Matta, Aracely; Matencio, Túlio; Domingues, Rosana Zacarias; Ludwig, Gustavo Alberto; Korb, Matias de Angelis; Malfatti, Célia de Fraga; Gauthier‐Maradei, Paola; Gauthier, Gilles H.

doi:10.1016/j.ssi.2014.04.014

Cited by 17 publications

(8 citation statements)

References 46 publications

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“…Liu indicated that the oxidation of toluene by transition metal oxide catalysts also follows the MvK mechanism. 31 Researchers have developed a large number of approaches to reduce the amount of carbon deposition produced from hydrocarbon fuels, which are generally classified into four categories: forming alloys with Ni, [32][33][34] developing new Ni-free metals, 35,36 modifying the surface of Ni with oxides, [37][38][39] and applying a catalyst layer in the anode area. 35,36 Previous work has indicated that application of a catalyst layer that is catalytically active towards fuel conversion is an effective way to inhibit carbon deposition.…”

Section: Novelty Statementmentioning

confidence: 99%

A strategy to reduce the impact of tar on a Ni ‐ YSZ anode of solid oxide fuel cells

Chen

Guo

et al. 2019

Int J Energy Res

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Summary High‐temperature raw coke oven gas (COG) is a promising fuel for use in solid oxide fuel cells (SOFCs) because it is rich in both hydrogen (55%‐60%) and methane (23%‐27%). However, the tar present in COG limits its ability to directly generate power using state‐of‐art SOFCs because the presence of tar limits the cell's performance and stability. In this work, a strategy is presented in the attempt to reduce the influence of tar on SOFCs by applying a La0.7Sr0.3MnO3 catalyst as a protective layer for the cell. The results showed that 44‐g Nm−3 toluene had a profoundly negative effect on the performance of a conventional cell, which showed severely reduced performance after only 1.4 hours of exposure to toluene‐contaminated hydrogen. In contrast, the catalyst‐modified cell showed good stability for at least 110 hours under the same conditions. This work provides a promising route to directly utilize raw COG as an SOFC fuel that is also suitable for biosyngas.

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Section: Novelty Statementmentioning

confidence: 99%

A strategy to reduce the impact of tar on a Ni ‐ YSZ anode of solid oxide fuel cells

Chen

Guo

et al. 2019

Int J Energy Res

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“…Barium diffusion under high‐temperature sintering was an effective strategy for blocking the internal electronic short circuit in DCO‐based electrolyte through direct screen printing BaO over one surface of the DCO‐based electrolyte . This could be done by modifying anode particles with Ba(NO 3 ) 2 or decorating DCO‐based electrolyte with Ba(CH 3 COO) 2 . Meanwhile, Ba‐containing proton conductors have been employed as interlayers between two DCO‐based electrolytes, such as BaCe 0.8 Y 0.2 O 3‐δ and BaCe 1‐x Gd x O 3‐δ .…”

Section: Introductionmentioning

confidence: 99%

An investigation of metal ion diffusion in ceria‐based solid oxide fuel cell with barium‐containing anode

Cao

Zhou

et al. 2018

J Am Ceram Soc

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Metal ion diffusion is an effective strategy to suppress the internal electronic short circuit in ceria‐based solid oxide fuel cells (SOFCs). This could be achieved by fabricating an electron‐blocking layer between the barium‐containing anode and ceria‐based electrolyte. In this paper, a 0.6NiO‐0.4BaZr0.1Ce0.7Y0.2O3‐δ (NiO‐BZCY) anode‐supported cell based on Gd0.1Ce0.9O2‐δ (GDC) electrolyte was employed to evaluate the internal metal ion diffusion behavior. The high open circuit voltages of about 1 V obtained at 550‐700°C can be attributed to in situ formation of an electron‐blocking interlayer between NiO‐BZCY and GDC. Microstructural analyses of the interlayer grains obtained by traditional solid‐state reaction were carried out. Phase identification demonstrated that the electron‐blocking interlayer had a perovskite structure. SEM and TEM analyses indicated formation of a new compound in the interlayer, of which the composition was determined as Zr, Y, and Ni co‐doped BaCe0.9Gd0.1O3 with orthorhombic structure.

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“…It can be evaluated through elemental distribution analysis using scanning electron microscopy-energy dispersive X-ray (SEM-EDX) and crystallography through X-ray diffraction (XRD) analysis. The different elemental compositions in the two layers revealed the analysis of elemental distribution very important which aims to identify membrane formation, as referred to in Sandoval et al [44]. The constituent elements of LSCF were also found to overlap with the Ni signal in the inner layer, as well as yttria and zirconia.…”

Section: Fabrication Method: Co-extrusion Followed By Co-sinteringmentioning

confidence: 93%

Grand Challenges of Perovskite and Metal Oxide-based Membrane: A Form of Dual-layer Hollow Fibre

Nurherdiana

Gunawan

Widiastuti

et al. 2021

AMST

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Perovskite and metal oxides-based dual-layer hollow fibre membrane (DHF) has a high appeal as separator and catalyst for methane conversion application which operated at intermediate and high temperature. The membrane mostly fabricated via the co-extrusion followed by co-sintering method, which is quite challenging, due to the complexity to handle the barrier between layers from delamination, membrane cracking and crystal structure distortion which affects the material performance in a DHF form. This recent review clarifies the challenges in the DHF fabrication process to regulate physical and chemical properties in terms of mechanical strength, tightness, elemental distribution, and crystal structure stability. The based material of the membrane focuses on NiO-YSZ in the inner layer directly interconnected with LSCF-YSZ in the outer layer. The understanding of the challenges in DHF fabrication, will further reduce crucial errors in the fabrication process and accelerate performance improvement for application such as syngas, methanol and long-chain hydrocarbons production, and solid oxide fuel cell.

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Barium-modified NiO–YSZ/NiO–GDC cermet as new anode material for solid oxide fuel cells (SOFC)

Cited by 17 publications

References 46 publications

A strategy to reduce the impact of tar on a Ni ‐ YSZ anode of solid oxide fuel cells

A strategy to reduce the impact of tar on a Ni ‐ YSZ anode of solid oxide fuel cells

An investigation of metal ion diffusion in ceria‐based solid oxide fuel cell with barium‐containing anode

Grand Challenges of Perovskite and Metal Oxide-based Membrane: A Form of Dual-layer Hollow Fibre

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