A multi-functional phosphor Ba5La3MgAl3O15:Pr3+ with diverse thermal responses for high sensitive temperature sensing, photothermochromism indicator and patterned anti-counterfeiting DOI

Mengzhu Long,

Chao Li, Bing Li

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Temperature sensing performance of Er3+:Yb3+ co-doped CaF2 ceramic powders using near-infrared light DOI
Nikifor Rakov, Francisco Matias, Glauco S. Maciel

et al.

Journal of Rare Earths, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

Citations

9
A polarized luminescence thermometer based on a dye encapsulated metal–organic framework DOI Creative Commons

Shenghan Lin,

Zhengluan Liao,

He‐Qi Zheng

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(7), P. 2391 - 2397

Published: Jan. 1, 2024

A polarized luminescent thermometer was prepared by encapsulating DSM and ACF dyes within the metal-organic framework (MOF) ZJU-28.

Language: Английский

Citations

9
Operando Luminescence Thermometry of a Solid Catalyst in a Reactor during a High‐Temperature Chemical Process DOI Open Access
Daniël W. Groefsema, Freddy T. Rabouw,

Michiel Boele

et al.

Chemistry - Methods, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Abstract In most catalytic processes, thermal energy is released or consumed locally in a reactor due to the exothermicity endothermicity of chemical reactions. This causes actual operating temperature catalyst material deviate from temperature, which can lead underperformance, reduced stability, even runaway. Conventional methods measure with thermocouple oven bed, suffer complications because separation between sensor and material, activity thermocouple/coating added complexity setup, disruption reactant flow heat through bed. Here, we show possibilities challenges luminescence thermometry as an analytical technique for remote monitoring local strongly exothermic high‐temperature reaction environment. We observe that lifetime depends not only but also on oxygen concentration, introduce significant systematic error up 40 °C recorded temperature. case ratiometric thermometry, this ~5 °C. use confirm its applicability oxidative coupling methane (OCM) process at high temperatures, showing increase 100 °C, relative constant under inert conditions.

Language: Английский

Citations

1
Understanding the Influence of Electron Traps and Urbach States on the Kinetics of Ti3+ Persistent Luminescence in LaAlO3:Ti3+ DOI Creative Commons
Wojciech Piotrowski, Justyna Zeler, Vasyl Kinzhybalo

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 6, 2025

The luminescence kinetics of Ti3+ ions, resulting from the spin-allowed 2E → 2T2 electron transition, are generally expected to be fast, within microsecond range. However, in this study, we observed average lifetimes up 30 ms nanocrystalline LaAlO3:Ti3+ powders. Our detailed analysis spectroscopic and thermoluminescence properties suggests that prolonged is associated with presence traps proximity excited state conduction band, which facilitates energy transfer between them. Furthermore, shift Urbach states an increasing concentration correlates efficiency deeper ions. This study provides a comprehensive strategy for controlling ions through trap engineering, induced by dopant ion concentration, can applied various fields including thermometry.

Language: Английский

Citations

1
A multi-functional phosphor Ba5La3MgAl3O15:Pr3+ with diverse thermal responses for high sensitive temperature sensing, photothermochromism indicator and patterned anti-counterfeiting DOI

Mengzhu Long,

Chao Li, Bing Li

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

1