Synthesis, Structure and Electrical Properties of Pr-Doped Apatite-Type Lanthanum Silicates

Li Peng Tian; Zhi Hua Ren

doi:10.4028/www.scientific.net/AMR.1094.155

Paper Titles

In Situ Growing of Co²⁺ Doped TiO₂Film on the Surface of Ti Plate and its Photo-Catalytic Hydrogen Production
p.137

New Energy Development and Energy Chemical Engineering (Topic Field) Released of Alkali Species under High Pressure Gasification of Pakistani Coal
p.141

Properties of LaNi_4.3Al_0.7 Applied in Separating Hydrogen from Coke Oven Gas
p.146

Pyrolysis of Hesigewula Lignite and Identification of Aromatics in the Pyrolysis Tar by Gas Chromatography-Mass Spectrometry
p.151

Synthesis, Structure and Electrical Properties of Pr-Doped Apatite-Type Lanthanum Silicates
p.155

Study on Acoustic Emission Signal Frequency Analysis for Diamond Growth Process
p.163

Towards an Atomic-Scale Understanding of the Adsorbate-Driven Formation of High-Index Faces
p.168

Study on the High-Speed Analysis of Coal Qualities by FT-NIR Method Based on Improved Successive Projections Algorithm
p.174

Determination of the Interface Roughness between Ni-Coated Layer and Cu Substrate by Glow Discharge Optical Emission Spectroscopy Depth Profiling
p.181

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1094Synthesis, Structure and Electrical Properties of...

Synthesis, Structure and Electrical Properties of Pr-Doped Apatite-Type Lanthanum Silicates

Abstract:

Apatite-type lanthanum silicates doped with Pr³⁺ at the La site, La_10-xPr_xSi₆O₂₇ (x = 0, 1, 2, 3, 4, 4.5), were synthesized via sol-gel process. Thermal behavior of the dried gel of La_10-xPr_xSi₆O₂₇ sample was studied using TG/DTA. X-ray diffraction, SEM and complex impedance analysis were used to investigate the microstructure and electrical properties of La_10-xPr_xSi₆O₂₇ ceramics. The XRD results indicated the maximum doping quantity of Pr³⁺ is x = 4.5. Lanthanum silicates doped with Pr³⁺ cations have a higher total conductivity than that of undoped lanthanum silicates. The enhanced total conductivity depends on the improved density of La_10-xPr_xSi₆O₂₇ (x = 0, 1, 2, 3, 4, 4.5). At 973K, the highest total conductivity is 1.36×10^-3S.cm^-1 for La₉PrSi₆O₂₇ ceramic.

You might also be interested in these eBooks

Chemical, Material and Metallurgical Engineering IV

View Preview

Info:

Periodical:

Advanced Materials Research (Volume 1094)

Pages:

155-159

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1094.155

Citation:

Cite this paper

Online since:

March 2015

Authors:

Li Peng Tian*, Zhi Hua Ren

Keywords:

Doped, Electrical Conductivity, Lanthanum Silicate, Sol-Gel Method

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] H. Yoshioka, Y. Nojiri, S. Tanase: Solid State Ionics 179 (2008) 2165~2169.

Google Scholar

[2] J.E.H. Sansom, E. Kendrick, J.R. Tolchard: Journal of Solid State Electrochem 10 (2006) 562-568.

Google Scholar

[3] Y. Nojiri, S. Tanase, M. Iwasa, H. Yoshioka, Y. Matsumura, T. Sakai: Journal of Power Sources 195 (2010) 4059-4064.

DOI: 10.1016/j.jpowsour.2010.01.050

Google Scholar

[4] D. Marrero-López, M.C. Martín-Sedeno, J. Pena-Martínez, J.C. Ruiz-Morales, P. Nune, M.A.G. Aranda, J.R. Romas-Barrado: Journal of Power Sources 195 (2010) 2496-2506.

DOI: 10.1016/j.jpowsour.2009.11.068

Google Scholar