Pink NIR Pigment Based on Cr-doped SrSnO3: Preparation and Characterization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F19%3A39915171" target="_blank" >RIV/00216275:25310/19:39915171 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2Fs10973-019-08522-z" target="_blank" >https://link.springer.com/article/10.1007%2Fs10973-019-08522-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10973-019-08522-z" target="_blank" >10.1007/s10973-019-08522-z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pink NIR Pigment Based on Cr-doped SrSnO3: Preparation and Characterization

Popis výsledku v původním jazyce

Perovskite pigments with SrCrxSn1-xO3-δ (x = 0.025, 0.05, 0.1, 0.2, 0.3) composition were prepared by a solid-state reaction, suspension mixing of materials and mechanochemical activation of initial reagents with calcination at high temperature. Results of thermal analysis show the effectivity of mechanochemical activation of reaction mixture that shifts the reaction course to lower temperature. Solid solution of SrSn0.975Cr0.025O3-δ was prepared at temperature 1200 °C. The optimal composition for synthesis of the intense red-pink powder is SrSn0.975Cr0.025O3-δ (L*/a*/b* = 36.34/14.21./1.12). Red-pink colour of the pigments is explained in terms of crystal field theory. The partial substitution of tin ions by chromium ions leads to the formation of the optical absorption bands corresponding to the O2p-Cr3d charge transfer transitions. Pigment is distinguished by good chemical stability in a molten ceramic glaze and high value of solar reflectance in the near-infrared region of light (R* approximate to 61%).

Název v anglickém jazyce

Pink NIR Pigment Based on Cr-doped SrSnO3: Preparation and Characterization

Popis výsledku anglicky

Perovskite pigments with SrCrxSn1-xO3-δ (x = 0.025, 0.05, 0.1, 0.2, 0.3) composition were prepared by a solid-state reaction, suspension mixing of materials and mechanochemical activation of initial reagents with calcination at high temperature. Results of thermal analysis show the effectivity of mechanochemical activation of reaction mixture that shifts the reaction course to lower temperature. Solid solution of SrSn0.975Cr0.025O3-δ was prepared at temperature 1200 °C. The optimal composition for synthesis of the intense red-pink powder is SrSn0.975Cr0.025O3-δ (L*/a*/b* = 36.34/14.21./1.12). Red-pink colour of the pigments is explained in terms of crystal field theory. The partial substitution of tin ions by chromium ions leads to the formation of the optical absorption bands corresponding to the O2p-Cr3d charge transfer transitions. Pigment is distinguished by good chemical stability in a molten ceramic glaze and high value of solar reflectance in the near-infrared region of light (R* approximate to 61%).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

<a href="/cs/project/GA16-06697S" target="_blank" >GA16-06697S: Syntéza a charakterizace nových barevných směsných oxidů kovů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Thermal Analysis and Calorimetry

ISSN

1388-6150

e-ISSN

—

Svazek periodika

138

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

4475-4484

Kód UT WoS článku

000501308800059

EID výsledku v databázi Scopus

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