Journal ArticleDOI
Ca-substituted, A-site deficient perovskite La0.2Sr0.7TiO3 as a potential anode material for SOFCs
TLDR
In this article, structural properties were determined at room temperature using X-ray powder diffraction and conductivity measurements were performed using the four probe DC and van der Pauw techniques at different temperatures and atmospheres.Abstract:
Samples from across the solid solution series La0.2Sr0.7−xCaxTiO3, were successfully synthesised by solid state reaction. Structural properties were determined at room temperature using X-ray powder diffraction and conductivity measurements were performed using the four probe DC and van der Pauw techniques at different temperatures and atmospheres. On increasing x, the perovskite phase lattice symmetry changes from cubic Pmm to tetragonal I4/mcm at x = 0.05 and tetragonal to orthorhombic Pbnm at x = 0.425. The lattice also shrinks as x increases. Samples showed only a slight 0.3% increase in lattice volume after reduction at 900 °C in 5% H2. On increasing calcium doping, conductivity in reduced samples and equilibrated at 900 °C in 5%H2 increased markedly reaching 27.53 S cm−1 at x = 0.45, but decreased as x increased further.read more
Citations
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Journal ArticleDOI
High-Performance Anode Material Sr2FeMo0.65Ni0.35O6-δ with In Situ Exsolved Nanoparticle Catalyst.
Zhihong Du,Hailei Zhao,Sha Yi,Qing Xia,Yue Gong,Yang Zhang,Xing Cheng,Yan Li,Lin Gu,Konrad Świerczek +9 more
TL;DR: The prepared SFMNi material is a promising high-performance anode for solid oxide fuel cells and shows excellent structural stability and good coking resistance in wet CH4.
Journal ArticleDOI
High-Figure-of-Merit Thermoelectric La-Doped A-Site-Deficient SrTiO3 Ceramics
TL;DR: In this article, the structure and thermoelectric properties of La-doped, A-site-deficient, SrTiO3 (Sr1-3x/2LaxTiOO3) ceramics sintered in air and N2/5% H2 have been investigated.
Journal ArticleDOI
Progress in La-doped SrTiO3 (LST)-based anode materials for solid oxide fuel cells
TL;DR: In this paper, the synthesis, structure and fuel cell performance of the doped La-substituted SrTiO3 (LST) and LST-based composite anode materials are summarized in detail.
Journal ArticleDOI
Tailoring SOFC Electrode Microstructures for Improved Performance
Paul A. Connor,Xiangling Yue,Cristian Savaniu,Robert Price,Georgios Triantafyllou,Mark Cassidy,Gwilherm Kerherve,David J. Payne,Robert C. Maher,Lesley F. Cohen,Rumen I. Tomov,Bartek A. Glowacki,Ramachandran Vasant Kumar,John T. S. Irvine +13 more
TL;DR: In this paper, the authors discuss the use of solution techniques to impregnate an already optimized electrode skeleton, which offers a fast and efficient way to evaluate new electrode materials and can also offer low cost routes to manufacture novel structures and to fine tune already known structures.
Journal ArticleDOI
Remarkable chemical adsorption of manganese-doped titanate for direct carbon dioxide electrolysis
TL;DR: In this paper, the active Mn with multi-oxidation states is introduced into the B-site lattice of the redox-stable (La, Sr)TiO3+δ to create oxygen vacancies both in the bulk and on the surface.
References
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Journal ArticleDOI
A review on the status of anode materials for solid oxide fuel cells
W.Z Zhu,Seetharama C. Deevi +1 more
TL;DR: In this article, a review of the state-of-the-art development of anode for solid oxide fuel cell (SOFC) with principal emphasis on the materials aspect is presented.
Journal ArticleDOI
Recent anode advances in solid oxide fuel cells
Chunwen Sun,Ulrich Stimming +1 more
TL;DR: In this article, a review of the recent developments of anode in SOFCs with principal emphasis on the material aspects is presented, and the mechanism and kinetics of fuel oxidation reactions are also addressed.
Journal ArticleDOI
Thermal, Electrical, and Electrocatalytical Properties of Lanthanum-Doped Strontium Titanate
TL;DR: In this article, perovskite compositions are studied in relation to their potential use as solid oxide fuel cell (SOFC) anode materials, and an emphasis is made on the effect of oxidation-reduction cycling on these properties.
Journal ArticleDOI
Sulfur-tolerant anode materials for solid oxide fuel cell application
TL;DR: In this paper, the degradation mechanisms for SOFC anodes in the presence of sulfur and recent developments in sulfur-tolerant anodes are summarized, and three kinds of materials: thiospinels and metal sulfides, metal cermets, and mixed ionic and electronic conductors.
Journal ArticleDOI
Oxide anode materials for solid oxide fuel cells
TL;DR: In this article, the oxide materials being investigated as alternatives to the most commonly used nickel-YSZ cermet anodes for SOFCs are compared primarily in terms of their transport properties, but other properties relative to SOFC anode performance are also discussed.
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