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Spinel Cu–Mn–Cr Oxide Nanoparticle-Pigmented Solar Selective Coatings Maintaining >94% Efficiency at 750 °C

Journal Article · · ACS Applied Materials and Interfaces
High-temperature concentrating solar power (CSP) system is capable of harvesting and storing solar energy as heat towards cost-effective dispatchable solar electricity. Solar selective coating is a critical component to boost its efficiency by maximizing solar absorptance and minimizing thermal emittance losses. However, maintaining a high solar-thermal conversion efficiency >90% for long-term operation at ≥750 ºC remains a significant challenge. Herein, we report spray-coated spinel Cu-Mn-Cr oxide nanoparticle-pigmented solar selective coatings on Inconel tube sections maintaining ≥94% efficiency at 750 ºC and ≥92.5% at 800 ºC under 1000x solar concentration after 60 simulated day-night thermal cycles in air, each cycle comprising 12h at 750 ºC/800 ºC and 12h cooling to 25 ºC. The solar spectral selectivity is intrinsic to the band-to-band and d-d transitions of non-stoichiometric spinel Cu-Mn-Cr oxide nanoparticles. Furthermore, this feature offers a large fabrication tolerance in nanoparticle volume fraction and coating thickness, facilitating low-cost and scalable spray-coated high-efficiency solar selective absorbers for high-temperature CSP systems.
Research Organization:
Dartmouth College, Hanover, NH (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
Grant/Contract Number:
EE0008530
OSTI ID:
1884194
Journal Information:
ACS Applied Materials and Interfaces, Journal Name: ACS Applied Materials and Interfaces Journal Issue: 29 Vol. 14; ISSN 1944-8244
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (26)

Oxygen-Vacancy Ordering at Surfaces of Lithium Manganese(III,IV) Oxide Spinel Nanoparticles journal February 2011
The thermodynamics of cation distributions in simple spinels journal November 1967
On the stability of the cubic spinel structure in the system CuMnO journal May 1973
Comparison of color and optical absorbance properties of divalent ion substituted Cu and Zn aluminate spinel oxides synthesized by combustion method towards pigment application journal December 2015
Providing all global energy with wind, water, and solar power, Part I: Technologies, energy resources, quantities and areas of infrastructure, and materials journal March 2011
High-efficiency, air-stable manganese–iron oxide nanoparticle-pigmented solar selective absorber coatings toward concentrating solar power systems operating at 750 °C journal March 2021
Levelized cost of energy (LCOE) metric to characterize solar absorber coatings for the CSP industry journal January 2016
Performance enhancement of solar collectors—A review journal September 2015
Black oxide nanoparticles as durable solar absorbing material for high-temperature concentrating solar power system journal March 2015
Copper-oxide spinel absorber coatings for high-temperature concentrated solar power systems journal August 2018
Optical properties and thermal stability of Cu spinel oxide nanoparticle solar absorber coatings journal June 2019
High-temperature “ion baseball” for enhancing concentrated solar power efficiency journal September 2019
Enhanced thermal stability of solar selective absorber based on nano-multilayered AlCrSiO films journal April 2020
Effects of Metal Dopings on CuCr 2 O 4 Pigment for Use in Concentrated Solar Power Solar Selective Coatings journal December 2018
On the Interplay Between Oxygen Vacancies and Small Polarons in Manganese Iron Spinel Oxides journal January 2022
Defects in Divided Zinc−Copper Aluminate Spinels:  Structural Features and Optical Absorption Properties journal April 2007
Lattice Parameters and Stability of the Spinel Compounds in Relation to the Ionic Radii and Electronegativities of Constituting Chemical Elements journal May 2014
Unraveling Atomic Positions in an Oxide Spinel with Two Jahn−Teller Ions: Local Structure Investigation of CuMn 2 O 4 journal August 2009
Valence Engineering via Selective Atomic Substitution on Tetrahedral Sites in Spinel Oxide for Highly Enhanced Oxygen Evolution Catalysis journal April 2019
A review of cermet-based spectrally selective solar absorbers journal January 2014
Design and optimization of nanoparticle-pigmented solar selective absorber coatings for high-temperature concentrating solar thermal systems journal January 2018
Control of magnetic properties in spinel ZnFe2O4 thin films through intrinsic defect manipulation journal October 2020
Thermal Stability of Oxide-Based Solar Selective Coatings for CSP Central Receivers
  • Ambrosini, Andrea; Lambert, Timothy N.; Boubault, Antoine
  • Volume 1: Advances in Solar Buildings and Conservation; Climate Control and the Environment; Alternate Fuels and Infrastructure; ARPA-E; Combined Energy Cycles, CHP, CCHP, and Smart Grids; Concentrating Solar Power; Economic, Environmental, and Policy Aspects of Alternate Energy; Geothermal Energy, Harvesting, Ocean Energy and Other Emerging Technologies; Hydrogen Energy Technologies; Low/Zero Emission Power Plants and Carbon Sequestration; Micro and Nano Technology Applications and Materials https://doi.org/10.1115/ES2015-49706
conference June 2015
Structural refinement and crystal chemistry of Mn-doped spinel: A case for tetrahedrally coordinated Mn3+ in an oxygen-based structure journal January 2007
Concentrating Solar Power Gen3 Demonstration Roadmap report January 2017
The Potential Role of Concentrating Solar Power within the Context of DOE's 2030 Solar Cost Targets report January 2019