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    Performance of High Volume Fly Ash Concrete in Structural Applications by Puneet Kaura, P N Ojha, Brijesh Singh

    Published 2023-03-01
    Subjects: “…High volume fly ash concrete mixes…”
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    Various Sizes and Shapes of Mixed-Anion Fe(NH<sub>2</sub>trz)<sub>3</sub>(BF<sub>4</sub>)<sub>2−x</sub>(SiF<sub>6</sub>)<sub>x/2</sub>@SiO<sub>2</sub> Nanohybrid Particles Undergoing Spin Crossover Just Above Room Temperature by Xinyu Yang, Rafal Bielas, Vincent Collière, Lionel Salmon, Azzedine Bousseksou

    Published 2025-01-01
    “…Tetraethyl orthosilicate (TEOS) acts as precursor of both the SiF<sub>6</sub><sup>2−</sup> counter-anion and SiO<sub>2</sub> to obtain Fe(NH<sub>2</sub>trz)<sub>3</sub>(BF<sub>4</sub>)<sub>2−x</sub>(SiF<sub>6</sub>)<sub>x/2</sub>@SiO<sub>2</sub> nanoparticles with different sizes and morphologies while modifying the TEOS concentration and reaction time. The adjustable mixed-anion strategy leads to a range of quite scarce abrupt spin crossover behaviors with hysteresis just above room temperature (ca. 293 K), which is very promising for the integration of these materials into functional devices.…”
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