Optical properties and thermal stability of La1−xSrxCoO3−δ (0.2 ⩽ x ⩽ 0.8) ceramics

Zhenggang Fang; Chunhua Lu; Delin Ma; Ling Wei; Peiwen Li; Yaru Ni; Shunyan Tao; Zhongzi Xu

doi:10.1016/j.solener.2016.07.057

Optical properties and thermal stability of La₁₋_xSr_xCoO₃₋_δ (0.2 ⩽ x ⩽ 0.8) ceramics

Zhenggang Fang, Chunhua Lu, Delin Ma, Ling Wei, Peiwen Li, Yaru Ni, Shunyan Tao, Zhongzi Xu

Aerospace and Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Perovskite-type La₁₋_xSr_xCoO₃₋_δ (0.2 ⩽ x ⩽ 0.8) ceramics were prepared by tape casting and solid state reaction method. The room temperature optical properties of these samples were studied in detail. The temperature dependent emittance measurements and high-temperature durability tests were carried out. Results showed that these materials exhibited low reflectance at the solar spectrum wavelengths and high reflectance in the infrared region, with an optimal spectral selectivity of 3.2. The investigated samples showed low thermal emittance at high temperatures. More importantly, the sample was highly stable in air at 800 °C, as the performance criterion value was lower than 0.05 after 10 cycles (90 h) heat treatment. Our results demonstrate that the La₁₋_xSr_xCoO₃₋_δ ceramics have the potential to emerge as high temperature (∼800 °C) solar absorbers for the future solar power systems.

Original language	English (US)
Pages (from-to)	73-79
Number of pages	7
Journal	Solar energy
Volume	137
DOIs	https://doi.org/10.1016/j.solener.2016.07.057
State	Published - Nov 1 2016

Keywords

LaSrCoO
Optical properties
Solar absorber
Thermal stability

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Materials Science(all)

Access to Document

10.1016/j.solener.2016.07.057

Cite this

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title = "Optical properties and thermal stability of La1−xSrxCoO3−δ (0.2 ⩽ x ⩽ 0.8) ceramics",

abstract = "Perovskite-type La1−xSrxCoO3−δ (0.2 ⩽ x ⩽ 0.8) ceramics were prepared by tape casting and solid state reaction method. The room temperature optical properties of these samples were studied in detail. The temperature dependent emittance measurements and high-temperature durability tests were carried out. Results showed that these materials exhibited low reflectance at the solar spectrum wavelengths and high reflectance in the infrared region, with an optimal spectral selectivity of 3.2. The investigated samples showed low thermal emittance at high temperatures. More importantly, the sample was highly stable in air at 800 °C, as the performance criterion value was lower than 0.05 after 10 cycles (90 h) heat treatment. Our results demonstrate that the La1−xSrxCoO3−δ ceramics have the potential to emerge as high temperature (∼800 °C) solar absorbers for the future solar power systems.",

keywords = "LaSrCoO, Optical properties, Solar absorber, Thermal stability",

author = "Zhenggang Fang and Chunhua Lu and Delin Ma and Ling Wei and Peiwen Li and Yaru Ni and Shunyan Tao and Zhongzi Xu",

note = "Funding Information: This work was supported by the Priority Academic Program Development of the Jiangsu Higher Education Institutions (PAPD), the Key Laboratory of Inorganic Coating Materials, Chinese Academy of Sciences (KLICM-2014-10), as well as the independent research topic of State Key Laboratory of Materials-Oriented Chemical Engineering (ZK201211). Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

year = "2016",

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doi = "10.1016/j.solener.2016.07.057",

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TY - JOUR

T1 - Optical properties and thermal stability of La1−xSrxCoO3−δ (0.2 ⩽ x ⩽ 0.8) ceramics

AU - Fang, Zhenggang

AU - Lu, Chunhua

AU - Ma, Delin

AU - Wei, Ling

AU - Li, Peiwen

AU - Ni, Yaru

AU - Tao, Shunyan

AU - Xu, Zhongzi

N1 - Funding Information: This work was supported by the Priority Academic Program Development of the Jiangsu Higher Education Institutions (PAPD), the Key Laboratory of Inorganic Coating Materials, Chinese Academy of Sciences (KLICM-2014-10), as well as the independent research topic of State Key Laboratory of Materials-Oriented Chemical Engineering (ZK201211). Publisher Copyright: © 2016 Elsevier Ltd

PY - 2016/11/1

Y1 - 2016/11/1

N2 - Perovskite-type La1−xSrxCoO3−δ (0.2 ⩽ x ⩽ 0.8) ceramics were prepared by tape casting and solid state reaction method. The room temperature optical properties of these samples were studied in detail. The temperature dependent emittance measurements and high-temperature durability tests were carried out. Results showed that these materials exhibited low reflectance at the solar spectrum wavelengths and high reflectance in the infrared region, with an optimal spectral selectivity of 3.2. The investigated samples showed low thermal emittance at high temperatures. More importantly, the sample was highly stable in air at 800 °C, as the performance criterion value was lower than 0.05 after 10 cycles (90 h) heat treatment. Our results demonstrate that the La1−xSrxCoO3−δ ceramics have the potential to emerge as high temperature (∼800 °C) solar absorbers for the future solar power systems.

AB - Perovskite-type La1−xSrxCoO3−δ (0.2 ⩽ x ⩽ 0.8) ceramics were prepared by tape casting and solid state reaction method. The room temperature optical properties of these samples were studied in detail. The temperature dependent emittance measurements and high-temperature durability tests were carried out. Results showed that these materials exhibited low reflectance at the solar spectrum wavelengths and high reflectance in the infrared region, with an optimal spectral selectivity of 3.2. The investigated samples showed low thermal emittance at high temperatures. More importantly, the sample was highly stable in air at 800 °C, as the performance criterion value was lower than 0.05 after 10 cycles (90 h) heat treatment. Our results demonstrate that the La1−xSrxCoO3−δ ceramics have the potential to emerge as high temperature (∼800 °C) solar absorbers for the future solar power systems.

KW - LaSrCoO

KW - Optical properties

KW - Solar absorber

KW - Thermal stability

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