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The characterization of electrical properties of Pd-doped LaCrO3 perovskite structure

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Author
Polat, Özgür
Coşkun, Merve
Coşkun, Fatih Mehmet
Durmuş, Zehra
Çağlar, Müjdat
Turut, Abdulmecit
Type
Article
Date
2018-10
Language
en_US
Metadata
Show full item record
Abstract
In the present study, the electrical properties of LCO were explored via substituting the Pd into Cr sites with various mol%. The crystalline morphology of synthesized LaCrO3 and LaCr1 − xPdxO3 (LCPO) (x = 0.05, 0.10, 0.20) ceramics were characterized via scanning electron microscope (SEM). Oxidation states of constituent elements have been examined by X-ray photoelectron spectroscopy (XPS). Electrical properties of LCO and LCPO ceramics were studied by dielectric/impedance spectrometer at various temperatures, − 100 to 100 °C, and a wide frequency range (1–107 Hz). Present work has demonstrated the conductivity and dielectric constant of LCO deteriorate with Pd doping. The calculated power law exponent from ac conductivity reveals that there are different conduction mechanisms in the samples. It has been established the activation energy of the parent LCO rises with increasing the Pd doping. The activation energies from dc conductivity measurements underline that the conduction is owing to polaron hopping based on electron carriers.
Subject
OXIDE FUEL-CELLS
DIELECTRIC-PROPERTIES
IMPEDANCE SPECTROSCOPY
MECHANICAL-PROPERTIES
LANTHANUM CHROMITES
AC CONDUCTIVITY
LOW-TEMPERATURE
RELAXATION
CERAMICS
ANODES
URI
https://doi.org/10.1007/s10854-018-9789-2
https://hdl.handle.net/11413/3439
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  • Makaleler / Articles [70]
  • Scopus Publications [724]
  • WoS Publications [1016]

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İstanbul Kültür University

Hakkında |Politika | Kütüphane | İletişim | Send Feedback | Admin

Istanbul Kültür University, Ataköy Campus E5 Karayolu Üzeri Bakırköy 34158, İstanbul / TURKEY
Copyright © İstanbul Kültür University

Creative Commons Lisansı
IKU Institutional Repository, Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

Designed by  UNIREPOS