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A New High-Temperature Durable Absorber Material Solution through a Spinel-Type High Solar Absorptivity Coating on Ti2AlC MAX Phase Material
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.ORCID iD: 0000-0003-4134-3520
KTH, School of Engineering Sciences (SCI), Applied Physics, Materials and Nanophysics.ORCID iD: 0000-0002-1679-1316
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Structures.ORCID iD: 0000-0003-0533-6729
KTH, School of Engineering Sciences (SCI), Applied Physics, Materials and Nanophysics. KTH Royal Inst Technol, Dept Appl Phys, S-11419 Stockholm, Sweden.;King Abdulaziz Univ, Ctr Nanotechnol, Jeddah 21589, Saudi Arabia..ORCID iD: 0000-0002-0074-3504
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2021 (English)In: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 13, no 37, p. 45008-45017Article in journal (Refereed) Published
Abstract [en]

Enhancing the operating temperature of concentrating solar power systems is a promising way to obtain higher system efficiency and thus enhance their competitiveness. One major barrier is the unavailability of suitable solar absorber materials for operation at higher temperatures. In this work, we report on a new high-temperature absorber material by combining Ti2AlC MAX phase material and iron-cobalt-chromite spinel coating/paint. This durable material solution exhibits excellent performance, passing the thermal stability test in an open-air environment at a temperature of 1250 degrees C for 400 h and at 1300 degrees C for 200 h. The results show that the black spinel coating can offer a stable high solar absorptivity in the range of 0.877-0.894 throughout the 600 h test under high temperatures. These solar absorptivity values are even 1.6-3.3% higher than that for the sintered SiC ceramic that is a widely used solar absorber material. Divergence of solar absorptivity during these relatively long testing periods is less than 1.1%, indicating remarkable stability of the absorber material. Furthermore, considering the simple application process of the coating/painting utilizing a brush followed by curing at relatively low temperatures (room temperature, 95 and 260 degrees C in sequence), this absorber material shows the potential for large-scale, high-temperature solar thermal applications.

Place, publisher, year, edition, pages
American Chemical Society (ACS) , 2021. Vol. 13, no 37, p. 45008-45017
Keywords [en]
solar receiver, MAX phase, iron-cobalt-chromite spinel coating, spectral hemispherical absorptivity, concentrating solar power, thermal stability
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-303542DOI: 10.1021/acsami.1c10585ISI: 000700877100114PubMedID: 34494820Scopus ID: 2-s2.0-85115609314OAI: oai:DiVA.org:kth-303542DiVA, id: diva2:1608472
Note

QC 20211103

Available from: 2021-11-03 Created: 2021-11-03 Last updated: 2022-06-25Bibliographically approved

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Wang, WujunFei, YeMu, WangzhongDutta, JoydeepLaumert, Björn

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