Polarization-Dependent Birefringence in Lithium Aluminosilicate Glass

Сигаев, В. Н.; Lipat’ev, A. S.; Fedotov, S. S.; Lotarev, S. V.; Naumov, A. S.; Shevyakina, D. M.

doi:10.1007/s10717-022-00451-y

Cited by 6 publications

(1 citation statement)

References 9 publications

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“…Thus, the technology-critical element lithium plays a crucial role for energy storage in lithium-ion batteries especially caused by the current development of electromobility. Apart from batteries, lithium is also applied in the optoelectronic 1 and nuclear 2 industries, in ceramics, 3 glass, 4 lubricants, 5 and refrigeration technologies. 6 Although electric vehicles fortunately have already avoided 53 Mt of carbon dioxide in 2019, 7 the increasing use of lithium-ion batteries is problematic from different viewpoints.…”

Section: Introductionmentioning

confidence: 99%

Lithium aluminate flotation by pH- and light-switchable collectors based on the natural product punicine

Zgheib,

Acker,

Fischer

et al. 2024

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Lithium aluminate flotation by pH- and light-switchable collectors based on the natural product punicine

Zgheib,

Acker,

Fischer

et al. 2024

RSC Adv.

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Photo‐switchable Collectors for the Flotation of Lithium Aluminate for the Recycling of the Critical Raw Material Lithium

Zgheib,

Fischer,

Namyslo

et al. 2024

ChemSusChem

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Flotation of the mineral lithium aluminate by application of the natural product punicine and some derivatives as collectors is examined. Punicines, 1‐(2´,5´‐dihydroxyphenyl)‐pyridinium compounds, are switchable molecules whose properties can be changed reversibly. They exist as cations, neutral mesomeric betaines, anions, and dianions depending on the pH. In light, they form radicals. Five punicine derivatives were prepared which possess β‐methyl, β‐chlorine, γ‐tert.‐butyl, and γ‐acetyl groups attached to the pyridinium ring, and a pyrogallol derivative. LiAlO2 reacts with water to give species such as LiAl2(OH)7 on its surface. Flotations were performed applying the punicines in daylight, in darkness and under UV‐irradiation (390 – 400 nm). The pH of the suspension, the collector´s concentration, the conditioning time as well as the flotation time were varied. The recovery rates strongly depend on these parameters. For example, the recovery rate of lithium aluminate was increased by 116% on changing the lighting condition from daylight to darkness, when the pyrogallol derivative of punicine was applied. UV, FTIR, TGA and zeta potential measurements as well as DFT calculations were performed in order to gain insight into the chemistry of punicines on the surface of LiAlO2 and LiAl2(OH)7 in water which influence the flotation´s results.

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Advanced Transparent Glass‐Ceramics via Laser Anisotropic Nanocrystallization

Li,

Yan,

Wang

et al. 2024

Laser & Photonics Reviews

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Transparent glass‐ceramics, merging the attributes of both glass and ceramics, have diverse applications in ballistic protection, armor materials, dentistry, light‐emitting diode, and optical domains. A limitation of conventional methods for glass‐ceramic fabrication is their inadequacy in precisely controlling the morphology of crystallization, consequently constraining their prospective advancements in diverse areas. Here, a method that facilitates precise control over the formation and growth of polarization‐dependent nonperiodic anisotropic nanocrystals, with a short axis ranging from 15 to 280 nm, in Li2O‐Al2O3‐SiO2 (LAS) glass is proposed. The method utilizes the principles of near‐field anisotropy between light and matter, building upon the classical nucleation‐growth model of glass crystallization. Notably, the glass‐ceramics possessing laser‐induced nanocrystals within the Rayleigh size regime showcase an impressive 99.7% transmittance in the visible and near‐infrared wavelengths. Additionally, the glass‐ceramics with non‐periodic anisotropic nanocrystals macroscopically exhibit form‐birefringence properties, thus enabling transparent optical applications, such as polarization elements, geometric phase elements, and multi‐dimensional optical data storage. This work opens up new avenues for morphological manipulation of nanocrystallization, with potential applications in optics, nanophotonics, functional glass‐ceramics, and high mechanical performance devices.

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Polarization-Dependent Birefringence in Lithium Aluminosilicate Glass

Cited by 6 publications

References 9 publications

Lithium aluminate flotation by pH- and light-switchable collectors based on the natural product punicine

Lithium aluminate flotation by pH- and light-switchable collectors based on the natural product punicine

Photo‐switchable Collectors for the Flotation of Lithium Aluminate for the Recycling of the Critical Raw Material Lithium

Advanced Transparent Glass‐Ceramics via Laser Anisotropic Nanocrystallization

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