SYNTHESIS OF LAxSR1-xTIO3 ANODE MATERIALS BY SOL-GEL AUTO-COMBUSTION METHOD

Cheng, Jihai

doi:10.4067/s0717-97072012000100003

Cited by 6 publications

(2 citation statements)

References 17 publications

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“…Based on the procedure reported by Cheng [55], titanium butoxide was disso ethanol. The desired atomic ratios of Sr, La and Ni nitrates were dissolved in wat cationic solutions were added to a solution of citric acid in water at an atomic rati to the stoichiometric amount of B-sites (Ti + Ni).…”

Section: Sol-gel Combustion Synthesismentioning

confidence: 99%

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Influence of the La0.2Sr0.7Ti0.95Ni0.05O3 (LSTN) Synthesis Method on SOFC Anode Performance

Dahan,

Fadeev,

Hayun

et al. 2024

Catalysts

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Solid oxide fuel cells are characterized by a high efficiency for converting chemical energy into electricity and fuel flexibility. This research work focuses on developing durable and efficient anodes for solid oxide fuel cells (SOFCs) based on exsolving nickel from the perovskite structure. A-site-deficient La- and Ni-doped strontium titanates (La0.2Sr0.7Ti0.95Ni0.05O3−δ, LSTN) were synthesized using four different techniques and mixed with Ce0.8Gd0.2O2−δ (GDC) to form the SOFC anode. The synthesis routes of interest for comparison included solid-state, sol-gel, hydrothermal, and co-precipitation methods. LSTN powders were characterized via XRD, SEM, TPR, BET and XPS. In situ XRD during reduction was measured and the reduced powders were analyzed using TEM. The impact of synthesis route on SOFC performance was investigated. All samples were highly durable when kept at 0.5 V for 48 h at 800 °C with H2 fuel. Interestingly, the best performance was observed for the cell with the LSTN anode prepared via co-precipitation, while the conventional solid-state synthesis method only achieved the second-best results.

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Section: Sol-gel Combustion Synthesismentioning

confidence: 99%

“…Based on the procedure reported by Cheng [55], titanium butoxide was dissolved in ethanol. The desired atomic ratios of Sr, La and Ni nitrates were dissolved in water.…”

Section: Sol-gel Combustion Synthesismentioning

confidence: 99%

Influence of the La0.2Sr0.7Ti0.95Ni0.05O3 (LSTN) Synthesis Method on SOFC Anode Performance

Dahan,

Fadeev,

Hayun

et al. 2024

Catalysts

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Recent Progress in Hexagonal Ferrites Based Composites for Microwave Absorption

Mohammed

Mohammed²,

Srivastava

2022

Cryst. Res. Technol.

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With the fast growth of wireless communication technology in high‐frequency ranges, electromagnetic (EM) interference has become a growing concern that has drawn international attention. The development of materials that can absorb EM radiation is a crucial solution. This review provides a detailed overview of ferrites, specifically hexagonal ferrites and their composites for microwave (MW) absorption. It examines hexagonal ferrite classifications based on the stacking order of their fundamental blocks and their synthesis methods and strategies for improving their magnetic properties. On the other hand, this review included a detailed examination of hexagonal ferrites–conducting polymer, hexagonal ferrites–2D materials, and hexagonal ferrite–other nanomaterials composites for MW absorption applications. Enhancing MW absorption in hexagonal ferrites‐based microwave absorption materials (MAMs) regulates their EM characteristics, improves impedance matching, and creates a diversity of loss mechanisms. In addition, the limitations, challenges, and opportunities of hexagonal ferrites‐based MAMs are discussed, which will be helpful to those working in related areas. As a general application potential, it is worth mentioning that, as a result of recent promising findings in the synthesis of hexagonal ferrites‐based composites, hexaferrite‐based composites are suitable devices in the area of microwave absorption.

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Preparation, characterization and environmental applications of Sr1 − x (La,Bi) x TiO3 perovskites immobilized on Ni-foam: photodegradation of the Acid Orange 7

Nunes

Lopes

Ciríaco

2016

Environ Sci Pollut Res

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The Sr La TiO (0 ≤ x ≤ 0.4) and Sr Bi TiO (0 ≤ x ≤ 0.3) perovskites were prepared via solid state reaction by partially replacing the Sr ions in the SrTiO structure by La or Bi ions, characterized and utilized as photocatalysts immobilized in Ni-foam substrate in the degradation of the azo dye Acid Orange 7 (AO7). For both perovskite families, the XRD data reveal the existence of a predominant well-crystallized phase, belonging to a cubic perovskite in a Pm3m space group, with the presence of other minority phases. The characteristic dimension and the volume of the cell decrease with the introduction in the SrTiO lattice of the La or Bi ions. The grain size of the Sr La TiO samples is around 100 nm and slightly lower for the Sr Bi TiO samples. Regarding the utilization of the prepared perovskite powders deposited over the Ni-foam substrates as catalysts in the photodegradation of AO7 solutions, the results show an improvement in the performance of the films of the substituted perovskite when compared to the SrTiO perovskite, being the best results obtained with SrBiTiO.

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SYNTHESIS OF LAxSR1-xTIO3 ANODE MATERIALS BY SOL-GEL AUTO-COMBUSTION METHOD

Cited by 6 publications

References 17 publications

Influence of the La0.2Sr0.7Ti0.95Ni0.05O3 (LSTN) Synthesis Method on SOFC Anode Performance

Influence of the La0.2Sr0.7Ti0.95Ni0.05O3 (LSTN) Synthesis Method on SOFC Anode Performance

Recent Progress in Hexagonal Ferrites Based Composites for Microwave Absorption

Preparation, characterization and environmental applications of Sr1 − x (La,Bi) x TiO3 perovskites immobilized on Ni-foam: photodegradation of the Acid Orange 7

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