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31 Ιουλ 2021 · The conversion of light alkanes to olefins (e.g., ethylene, propylene, or butylene) is crucial to the chemical industry. ZrO 2 with oxygen vacancies has recently been regarded as a promising catalyst for the direct dehydrogenation of light alkanes.
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27 Αυγ 2018 · Here, hardly reducible ZrO 2 was etched with hydrogen (H), aiming to modify surface structures with sufficient stable oxygen vacancies. After deposition of gold species, the obtained khaki ZrO 2 –H notably improved WGS catalytic activities and stabilities in comparison to the traditional white ZrO 2.
16 Απρ 2020 · Zirconium oxide (ZrO 2) also known as zirconia with its excellent chemical and physical properties have applications such as fuel cells [1], gas sensors [2], optoelectronics [3], catalyst [4], and corrosion resistant material [5].
15 Απρ 2017 · The structural, mechanical and thermodynamic properties of ZrO 2 polymorphs (namely, monoclinic (P 2 1/c), tetragonal (P 4 2/nmc), cubic (F m 3 ¯ m), and orthorhombic (Pbca and Pnma)) are investigated systematically by employing DFT functionals (LDA, PBE and PW91).
15 Οκτ 2023 · The scientific community has been inspired to investigate zirconia-based nanomaterials in a variety of technological fields, including functional materials, such as catalysts, sensors, and semiconductor devices, and structural materials, such as coatings on cutting tools, ceramics, implants, etc.
Oxygen vacancy sites on a catalyst surface have been extensively studied and been proved to promote the adsorption and activation of carbon dioxide. We use Sn-doped ZrO2 to prepare a Zr/Sn catalyst rich in oxygen vacancies (OVs) by co-precipitation.
24 Σεπ 2022 · Now, flame spray pyrolysis permits the synthesis of ternary Pd-In2O3-ZrO2 catalysts with an optimal architecture and an enriched density of oxygen vacancies for maximal performance in...
