Scalable and highly efficient high temperature solar absorber coatings based on high entropy alloy nitride AlCrTaTiZrN with different antireflection layers | |
Department | 环境材料与生态化学研究发展中心 |
Cheng-Yu He(何成玉)1,2; Xiang-Hu Gao(高祥虎)1,2; Dong-Mei Yu(于冬梅)1,2; Xiao-Li Qiu(邱晓莉)3; Hui-Xia Guo(郭惠霞)4; Gang Liu(刘刚)1,2 | |
The second department | 材料与分离分析 |
2021-01-28 | |
Source Publication | Journal of Materials Chemistry A |
Issue | 9Pages:6413-6422 |
Abstract | The functional application of high entropy alloys, which emerge as a novel multi-principal component alloy, has been constantly expanding in the field of solar photothermal harvesting from optical materials to high temperature materials due to their excellent properties. A solar spectrally selective absorbing coating requires such materials that show not only outstanding optical properties but also prominent thermal stability. It is desirable but challenging to fabricate high performance solar absorbing coatings. A prospective strategy for the preparation of solar absorbing coatings is the introduction of high entropy alloys. In this work, we have developed a simple, cost-conscious, scalable and highly efficient solar selective absorbing coating using a single layer high entropy nitride AlCrTaTiZrN by choosing appropriate elemental compositions. The as-deposited coatings show an outstanding spectral selectivity of α/ε = 92.8%/5.1% or 91.6%/5.1%. High temperature thermal stability tests are performed in depth, indicating that the coating could endure annealing treatment at 800 °C for 2 h with insignificant reflectance spectrum variation. A prolonged period of thermal stability characterization presents that this coating could maintain good optical performance after annealing at 650 °C for 300 h. Furthermore, high temperature thermal emittance can be suppressed to as low as 15.4% at 600 °C, which contributes to the state-of-the-art photothermal conversion efficiency under 100 suns (87.7% at 600 °C, and 84.6% at 650 °C). Overall, the high entropy nitride AlCrTaTiZrN based coating contributes to good thermal stability and optical properties, showing great potential for extensive applications in solar energy harvesting. |
MOST Discipline Catalogue | 工学 |
DOI | 10.1039/D0TA09988K |
Indexed By | SCI |
If | 12.732 |
Language | 英语 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/27737 |
Collection | 环境材料与生态化学研究发展中心 |
Corresponding Author | Xiang-Hu Gao(高祥虎); Gang Liu(刘刚) |
Affiliation | 1.Research and Development Center for EcoChemistry and Eco-Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China 3.College of Physics and Engineering, Chengdu Normal University, Chengdu 611130, China 4.Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China |
Recommended Citation GB/T 7714 | Cheng-Yu He,Xiang-Hu Gao,Dong-Mei Yu,et al. Scalable and highly efficient high temperature solar absorber coatings based on high entropy alloy nitride AlCrTaTiZrN with different antireflection layers[J]. Journal of Materials Chemistry A,2021(9):6413-6422. |
APA | Cheng-Yu He,Xiang-Hu Gao,Dong-Mei Yu,Xiao-Li Qiu,Hui-Xia Guo,&Gang Liu.(2021).Scalable and highly efficient high temperature solar absorber coatings based on high entropy alloy nitride AlCrTaTiZrN with different antireflection layers.Journal of Materials Chemistry A(9),6413-6422. |
MLA | Cheng-Yu He,et al."Scalable and highly efficient high temperature solar absorber coatings based on high entropy alloy nitride AlCrTaTiZrN with different antireflection layers".Journal of Materials Chemistry A .9(2021):6413-6422. |
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