Exploring the underlying mechanisms behind the increased far infrared radiation properties of perovskite-type Ce/Mn co-doped ceramics
Article
Article Title | Exploring the underlying mechanisms behind the increased far infrared radiation properties of perovskite-type Ce/Mn co-doped ceramics |
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ERA Journal ID | 4969 |
Article Category | Article |
Authors | Deng, Yi (Author), Zhang, Kewei (Author), Shi, Xiuyuan (Author), Dong, Taosheng (Author), Yang, Lei (Author), Yang, Weizhong (Author), Hong, Min (Author), Wang, Yuan (Author), Dargusch, Matthew (Author) and Chen, Zhi-Gang (Author) |
Journal Title | Materials Research Bulletin |
Journal Citation | 109, pp. 233-239 |
Number of Pages | 7 |
Year | 2019 |
Place of Publication | United Kingdom |
ISSN | 0025-5408 |
1873-4227 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.materresbull.2018.09.042 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S002554081831290X |
Abstract | In this study, we report a solid-state synthesis of a novel Ce/Mn co-doped LaAlO3 ceramic with high far infrared emissivity. After detailed analysis of the infrared absorption and emission of the Ce/Mn co-doped LaAlO3 ceramics, we find that the synergistic effect of Ce/Mn co-doping is the key factor to promoting the infrared emission properties of the co-doped perovskite-type ceramic in 8–14 μm range. Compared with the pristine LaAlO3, La0.7Ce0.3Mn0.4Al0.6O3 sample displays the highest emissivity as high as 0.915. From the structural analysis, it is found that the occupation of irregular polyhedrons (A-site) by Ce4+ ion induces the generation of Mn2+ in the octahedral center (B-site), leading to the unit cell volume expansion and obvious lattice deformation. These structural alterations consequently improve the vibration of AlOMn and MnOMn for enhancement of infrared radiation performance. The perovskite-type ceramic, which exhibits a high far infrared emissivity, displays a promising future in energy-saving applications. |
Keywords | Far infrared emission; LaAlO3; Co-doping; Perovskite; Ceramic |
ANZSRC Field of Research 2020 | 401605. Functional materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Sichuan University, China |
Centre for Future Materials | |
University of Queensland | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q51qx/exploring-the-underlying-mechanisms-behind-the-increased-far-infrared-radiation-properties-of-perovskite-type-ce-mn-co-doped-ceramics
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