Electronic and phononic absorption contributions to near-infrared reflectance of Mg1−xCoxAl2O4, Zn1−xCoxFe2O4 and CrxSbxTi1–2xO2 pigments

Saengsui, Worasarit; Tangkittimasak, Teerasak; Suwan, Mantana; Sangwong, Nuchjarin; Tangon, Chalita; Chanlek, Narong; Rakkwamsuk, Pattana; Supothina, Sitthisuntorn; Meevasana, W.

doi:10.1016/j.jallcom.2022.168695

Cited by 2 publications

(1 citation statement)

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“…The NIR reflectance drastically enhances in the case of the mineralizer-added black Zn 0.5 Cu 0.5 Fe 2 O 4 pigment from 14 to 45%, which is high for a black pigment. A negative correlation between phononic absorption and NIR reflectance has been reported in cobalt-doped zinc ferrites . Changes in electronic or phononic absorption might be induced by the enhanced NIR reflectance.…”

Section: Resultsmentioning

confidence: 96%

Exploration of Near-Infrared-Reflecting Zn_0.5M_0.5Fe₂O₄ Pigment for Sustainable Coatings by Transition Metal Substitutions and a Modifier

Sameera,

Vibin Lal Nayakom Mini,

Athyaparambath

et al. 2023

ACS Appl. Eng. Mater.

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Zinc ferrite pigments have emerged as potential candidates for enabling technology for large-scale energy-saving applications, which are safer, more accessible, and less damaging to the environment when compared to similar rare-earth-based colorants. Introducing transition metals into the ZnFe2O4 host lattice may distort the normally ordered lattice. A mineralizer was employed to further tune the color and infrared (IR)-reflective properties. NaCl lowered the crystallization temperature of the spinel zinc ferrite phase owing to its facilitation of ionic diffusion in solid-state reactions. Using a mineralizer promoted the generation of regular pigment particles to further enhance the optical property, leading to a low-cost, effective green strategy for heat mitigation. The acrylic coating of the pigment over the concrete substrate demonstrated good color consistency and near infrared (NIR) reflectivity (temperature shielding character). The surface temperature difference between the coated and uncoated acrylic binder-based mineralizer-added zinc ferrite was 16.4 °C. Since the synthesized zinc ferrite-based pigments have chemical stability and good NIR reflectivity and color characteristics, they have potential application for exterior energy-saving coatings.

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Section: Resultsmentioning

confidence: 96%

Exploration of Near-Infrared-Reflecting Zn_0.5M_0.5Fe₂O₄ Pigment for Sustainable Coatings by Transition Metal Substitutions and a Modifier

Sameera,

Vibin Lal Nayakom Mini,

Athyaparambath

et al. 2023

ACS Appl. Eng. Mater.

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Cu doped YInO3-ZnO green colored NIR reflective pigments: Synthesis and application in PMMA based cool-roof coatings

Fedel,

Rosati,

Bertasini

et al. 2023

Progress in Organic Coatings

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Electronic and phononic absorption contributions to near-infrared reflectance of Mg1−xCoxAl2O4, Zn1−xCoxFe2O4 and CrxSbxTi1–2xO2 pigments

Cited by 2 publications

References 46 publications

Exploration of Near-Infrared-Reflecting Zn_0.5M_0.5Fe₂O₄ Pigment for Sustainable Coatings by Transition Metal Substitutions and a Modifier

Exploration of Near-Infrared-Reflecting Zn_0.5M_0.5Fe₂O₄ Pigment for Sustainable Coatings by Transition Metal Substitutions and a Modifier

Cu doped YInO3-ZnO green colored NIR reflective pigments: Synthesis and application in PMMA based cool-roof coatings

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Electronic and phononic absorption contributions to near-infrared reflectance of Mg1−xCoxAl2O4, Zn1−xCoxFe2O4 and CrxSbxTi1–2xO2 pigments

Cited by 2 publications

References 46 publications

Exploration of Near-Infrared-Reflecting Zn0.5M0.5Fe2O4 Pigment for Sustainable Coatings by Transition Metal Substitutions and a Modifier

Exploration of Near-Infrared-Reflecting Zn0.5M0.5Fe2O4 Pigment for Sustainable Coatings by Transition Metal Substitutions and a Modifier

Cu doped YInO3-ZnO green colored NIR reflective pigments: Synthesis and application in PMMA based cool-roof coatings

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Product

Resources

About

Exploration of Near-Infrared-Reflecting Zn_0.5M_0.5Fe₂O₄ Pigment for Sustainable Coatings by Transition Metal Substitutions and a Modifier

Exploration of Near-Infrared-Reflecting Zn_0.5M_0.5Fe₂O₄ Pigment for Sustainable Coatings by Transition Metal Substitutions and a Modifier