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Tezyk V, Rossignol C, Sergent N, Djurado E, Laurencin J, Siebert E. Cyclic voltammetry and high-frequency series resistance of La0.6Sr0.4Co0.2Fe0.8O3-δ electrode deposited on GDC: Effect of the electrode microstructure and the oxygen partial pressure. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.02.066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Abdelaziem A, El-Khatib KM, Hafez MA, Badr Y. Effect of annealing on La 0.8Sr 0.2MnO 3 thin films prepared by pulsed laser deposition. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 211:100-107. [PMID: 30529811 DOI: 10.1016/j.saa.2018.11.060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 11/21/2018] [Accepted: 11/27/2018] [Indexed: 06/09/2023]
Abstract
La 0.8 Sr0.2MnO3 (LSM) polycrystalline powder was synthesized using hydrothermal method at 900 °C. High Resolution Transmission Electron Microscope (HR-TEM) showed that the particles were uniform with average particle size of 657 nm. X-ray Diffraction (XRD) and lattice fringes indicated rhombohedral structure of LSM particles. Thin LSM films were successfully grown on cleaned Si (100) substrate by pulsed laser deposition (PLD). Annealing of LSM films in air affected structure, morphology and electrical properties that films where crystallization of the LSM films was started at 600 °C and enhanced by further annealing as indicated by XRD. Field Emission Scanning Electron Microscope (FESEM) revealed that the grain size increases by increasing annealing temperature and at temperature of 1000 °C cracks were seen. Average roughness and root mean square roughness decreased with further annealing (up to 800 °C) then increased at 1000 °C that were verified by atomic force microscope (AFM). Moreover, Raman scattering was enhanced and all major bands were revealed at 800 °C. Resistivity of LSM films decreases with increasing temperature (from 25 °C to 200 °C) and all films underwent a semiconductor behavior in the most of applied temperatures. The lowest resistivity of LSM films was reached at annealing temperature of 800 °C with low activation energy value (Ea) of about 0.1 eV.
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Affiliation(s)
- Ali Abdelaziem
- Department of Laser Sciences and Interaction, National Institute of Laser Enhanced Sciences (NILES), Cairo University, Giza, Egypt, 12613.
| | - K M El-Khatib
- Chemical Engineering & Pilot Plant Department, Engineering Division, National Research Center, Dokki, Giza 12113, Egypt
| | - M A Hafez
- Department of Laser Sciences and Interaction, National Institute of Laser Enhanced Sciences (NILES), Cairo University, Giza, Egypt, 12613
| | - Y Badr
- Department of Laser Sciences and Interaction, National Institute of Laser Enhanced Sciences (NILES), Cairo University, Giza, Egypt, 12613
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Hernández W, Tsampas M, Zhao C, Boreave A, Bosselet F, Vernoux P. La/Sr-based perovskites as soot oxidation catalysts for Gasoline Particulate Filters. Catal Today 2015. [DOI: 10.1016/j.cattod.2014.12.021] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Vernoux P, Lizarraga L, Tsampas MN, Sapountzi FM, De Lucas-Consuegra A, Valverde JL, Souentie S, Vayenas CG, Tsiplakides D, Balomenou S, Baranova EA. Ionically Conducting Ceramics as Active Catalyst Supports. Chem Rev 2013; 113:8192-260. [DOI: 10.1021/cr4000336] [Citation(s) in RCA: 170] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Philippe Vernoux
- Université de Lyon, Institut de Recherches sur la Catalyse et l’Environnement de Lyon, UMR 5256, CNRS, Université Claude Bernard Lyon 1, 2 Avenue A. Einstein, 69626 Villeurbanne, France
| | - Leonardo Lizarraga
- Université de Lyon, Institut de Recherches sur la Catalyse et l’Environnement de Lyon, UMR 5256, CNRS, Université Claude Bernard Lyon 1, 2 Avenue A. Einstein, 69626 Villeurbanne, France
| | - Mihalis N. Tsampas
- Université de Lyon, Institut de Recherches sur la Catalyse et l’Environnement de Lyon, UMR 5256, CNRS, Université Claude Bernard Lyon 1, 2 Avenue A. Einstein, 69626 Villeurbanne, France
| | - Foteini M. Sapountzi
- Université de Lyon, Institut de Recherches sur la Catalyse et l’Environnement de Lyon, UMR 5256, CNRS, Université Claude Bernard Lyon 1, 2 Avenue A. Einstein, 69626 Villeurbanne, France
| | - Antonio De Lucas-Consuegra
- Departamento de Ingeniería Química, Facultad de Ciencias y Tecnologı́as Químicas, Universidad de Castilla-La Mancha, Avenida Camilo José Cela 10, 13005 Ciudad Real, Spain
| | - Jose-Luis Valverde
- Departamento de Ingeniería Química, Facultad de Ciencias y Tecnologı́as Químicas, Universidad de Castilla-La Mancha, Avenida Camilo José Cela 10, 13005 Ciudad Real, Spain
| | - Stamatios Souentie
- LCEP, Caratheodory 1 Street, Department of Chemical Engineering, University of Patras, Patras GR-26500, Greece
| | - Costas G. Vayenas
- LCEP, Caratheodory 1 Street, Department of Chemical Engineering, University of Patras, Patras GR-26500, Greece
- Division of Natural Sciences, Academy of Athens, Panepistimiou 36 Avenue, GR-10679, Athens, Greece
| | - Dimitris Tsiplakides
- Chemical Process Engineering Research Institute (CPERI), Centre for Research and Technology−Hellas (CERTH), Thessaloniki, Greece
| | - Stella Balomenou
- Chemical Process Engineering Research Institute (CPERI), Centre for Research and Technology−Hellas (CERTH), Thessaloniki, Greece
| | - Elena A. Baranova
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis-Pasteur Ottawa, Ontario K1N 6N5, Canada
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