Showing 1 - 20 results of 243 for search '"alumina"', query time: 0.05s Refine Results
  1. 1

    Surface Characterization and Catalytic Activity of Alumina and Alumina-Supported ZnSO Catalysts Prepared from Different Alumina Sources by Farid Sh. Mohamed

    Published 2002-09-01
    “…The source of alumina played a role in determining the surface acidity and catalyst activity of alumina and alumina-supported ZnSO 4 catalysts. …”
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  2. 2

    Grain Growth Behavior of Alumina in Zirconia-Toughened Alumina (ZTA) Ceramics During Pressureless Sintering by Yi Zhao, Jiang Deng, Wen Li, Jianhong Liu, Wenjie Yuan

    Published 2025-01-01
    “…The primary grain size, sintering conditions, and admixtures have a significant impact on the grain growth of alumina ceramics. Three kinds of alumina powders with varying grain sizes and zirconia nanoparticles were selected and configured into five compositions of zirconia-toughened alumina (ZTA) ceramics. …”
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  3. 3

    Characterization of Manganese Oxide/Alumina Catalysts by S.A. El-Hakam

    Published 1995-09-01
    “…The effect of heat treatment of manganese oxide/alumina catalysts of various manganese content on the structural and textural properties and the catalytic decomposition of hydrogen peroxide were investigated. …”
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    Characterization of Glasses in One Type of Alumina Rich Fly Ash by Chemical Digestion Methods: Implications for Alumina Extraction by Lijun Zhao, Hanshuang Xiao, Baodong Wang, Qi Sun

    Published 2016-01-01
    “…In recent years, one type of alumina rich fly ash (ARFA) with about 50 wt% of alumina has been extensively investigated for alumina extraction in China. …”
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    Effects of Base Materials (α-Alumina and/or γ-Alumina) on Volatile Organic Compounds (VOCs)-Sensing Properties of Adsorption/Combustion-Type Microsensors by Takeo Hyodo, Yuma Matsuura, Genki Inao, Takahiko Sasahara, Yasuhiro Shimizu, Taro Ueda

    Published 2025-01-01
    “…The sensing properties of adsorption/combustion-type microsensors using 5 wt% Pt-loaded aluminas, which consist of two kinds of alumina (α-Al<sub>2</sub>O<sub>3</sub> and γ-Al<sub>2</sub>O<sub>3</sub>), as sensing (catalytic) materials for ethanol and toluene, were investigated in air, and the mixing effects of α-Al<sub>2</sub>O<sub>3</sub> with γ-Al<sub>2</sub>O<sub>3</sub> on the dynamic and static responses of the sensors were discussed in this study. …”
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    Infrared Spectroscopic Study of the Acidic Character of Modified Alumina Surfaces by Aline Auroux, Antonella Gervasini

    Published 2003-10-01
    “…The infrared spectra of the hydroxyl region and of the regions associated with chemisorbed CO 2 and pyridine species on pure and modified aluminas loaded with various amounts of Li + or SO 2- 4 ions were investigated. …”
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    Development of cobalt-doped alumina hybrids for adsorption of textile effluents by Kousar Parveen, Uzaira Rafique

    Published 2018-02-01
    “…For this purpose, cobalt-doped alumina hybrids are synthesized and applied as adsorbents in batch experiment. …”
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    Adsorption of Ferricyanide Ion onActivated Carbon and γ-Alumina by J. Ketcha Mbadcam, G. F. Tchatat Wouaha, V. Hambate Gomdje

    Published 2010-01-01
    “…We compared the adsorption of ferricyanide ion, on two commercial activated carbons (COM3 and COM4) and γ-alumina (A1G) in aqueous solution. Isotherm parameters obtained from batch experiments of iron-cyanide complex adsorption on these adsorbents were carried-out. …”
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    Preparation of Alumina Nanoparticles and Coating with Polyvinylpyrrolidone to Treat Cadmium Contamination of Water by Shaymaa Mohammed Fayyadh, Foud Nihad Abed, Emaad Muhamme Awsaj, Samar S. Mohammed, Abdulsattar Abdullah Hamad Mohamad, M. Mahdi Abdulridha, Sameer Alshehri, Gashaw Tadele, Wegayehu Enbeyle

    Published 2022-01-01
    “…Alumina nanoparticles were prepared by sol-gel method, where the obtained nanosize was 35 nm, and the nanomaterial was coated with PVP polymer, where the nanomaterial was dispersed by ultrasonic waves for half an hour, and then, the polymer was added, and under high magnetic stirring for 24 hours, it was dried at a temperature of 60°C for 24 hours. …”
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    Influence of Surface Modification of Alumina on Improvement of Wetability in Aluminium Matrix Composite by Alireza Samiee, Mohammad Hosein Bina, Mahmood Meratian

    Published 2014-01-01
    “…In this research, aluminium powder (50 wt%) and alumina (50 wt%) were first milled at a specific ball-to-powder ratio in a high-energy planetary mill at different times to manufacture Al-Al2O3 composite. …”
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    Sulfuric Acid and Ammonium Sulfate Leaching of Alumina from Lampang Clay by Paweena Numluk, Aphiruk Chaisena

    Published 2012-01-01
    “…The rapid development of the global alumina industry has led to a considerable increase in the production alumina and processing of alumina from non-bauxitic sources. …”
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    Sodium Tripolyphosphate and Polyphosphate as Dispersing Agents for Alumina Suspensions: Rheological Characterization by L. Piani, A. Papo

    Published 2013-01-01
    “…In the present work, the influence of addition of some dispersing agents employed for maximizing the solid loading of alumina concentrated suspensions has been investigated. …”
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