Ce/Mn dual-doped LaAlO3 ceramics with enhanced far-infrared emission capability synthesized via a facile microwave sintering method

Deng, Yi and Zhang, Kewei and Yang, Yuanyi and Shi, Xiuyuan and Yang, Lei and Yang, Weizhong and Wang, Yuan and Chen, Zhi-Gang (2019) Ce/Mn dual-doped LaAlO3 ceramics with enhanced far-infrared emission capability synthesized via a facile microwave sintering method. Journal of Alloys and Compounds, 774. pp. 434-442. ISSN 0925-8388

Abstract

In this work, Ce/Mn dual-doped LaAlO3 ceramics have been synthesized via a facile microwave sintering method. From the detailed investigations of Fourier transform infrared spectroscopy, it has been found that Ce/Mn co-doping can dramatically improve the far-infrared emission capability of LaAlO3 ceramics in the range of 8–14 μm. After co-doping of Ce and Mn, Ce4+ ions in polyhedron site (A-site) induce the transformation of Mn4+ to Mn2+ in octahedron site (B-site), which causes the severe lattice distortion of the unit cell and strengthens the vibration intensities of asymmetrical Mn-O-Mn and Mn-O-Al bonds for the promotion of the far-infrared emissivity. Such dual-doped and perovskite-type LaAlO3 ceramics with excellent far-infrared emission shows great potential as a new generation of far-infrared radiation materials for energy conservation applications.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials
Date Deposited: 27 May 2019 06:02
Last Modified: 30 May 2019 05:13
Uncontrolled Keywords: LaAlO3 ceramics, Perovskite-type, far-infrared emission, microwave sintering
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091205 Functional Materials
Funding Details:
Identification Number or DOI: 10.1016/j.jallcom.2018.10.049
URI: http://eprints.usq.edu.au/id/eprint/36053

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