Showing 281 - 300 results of 1,089 for search '"catalyst"', query time: 0.05s Refine Results
  1. 281

    A Comparative Study of the Effect of MgO and CaCO3 as Support Materials in the Synthesis of Carbon Nanotubes with Fe/Co as Catalyst by Ezekiel D. Dikio, Albert J. Kupeta, Force T. Thema

    Published 2014-01-01
    “…A comparative study of the effect of magnesium oxide and calcium carbonate as support material in the synthesis of carbon nanotubes using the catalyst Fe/Co is presented. The synthesized carbon nanotubes were characterized with Raman spectroscopy, scanning electron spectroscopy (SEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction spectroscopy (XRD), and energy dispersive spectroscopy (EDS). …”
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  2. 282

    Removal of Textile Dyes from Aqueous Solution by Heterogeneous Photo-Fenton Reaction Using Modified PAN Nanofiber Fe Complex as Catalyst by Xueting Zhao, Yongchun Dong, Bowen Cheng, Weimin Kang

    Published 2013-01-01
    “…The modified PAN nanofiber Fe complex was prepared by the amidoximation and Fe coordination of PAN nanofiber was obtained using electrospinning technique and then used for the heterogeneous Fenton degradation of textile dyes as a novel catalyst. Some main factors affecting dye degradation such as Fe content of catalyst, irradiation intensity, H2O2 initial concentration, the solution pH as well as dye structure, and initial concentration were investigated. …”
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  11. 291

    Ozone-Catalytic Treatment of Automotive Exhaust by S.R. Khairulin, D.V. Maksudov, M.A. Kerzhentsev, A.V. Salnikov, Z.R. Ismagilov

    Published 2024-10-01
    Subjects: “…ozone, ozone-catalytic device, catalyst, honeycomb structure, exhaust gases treatment…”
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    Effect of ethanol concentration on the catalytic performance of WO3/MCF-Si and WO3/SBA-15 catalysts toward ethanol dehydration to ethylene by Pantita Trongjitraksa, Mohammad Yazdanpanah, Mohammad Fereidooni, Piyasan Praserthdam, Bunjerd Jongsomjit

    Published 2025-01-01
    “…In this study, the WO3/MCF-Si and WO3/SBA-15 catalysts were developed for the ethanol dehydration reaction under different ethanol concentrations including 99, 70, and 50 % v/v in water. …”
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  16. 296

    Carbon Nanofiber-Reinforced Carbon Black Support for Enhancing the Durability of Catalysts Used in Proton Exchange Membrane Fuel Cells Against Carbon Corrosion by Minki Sung, Hyeonseok Yi, Jimin Han, Jong Beom Lee, Seong-Ho Yoon, Joo-Il Park

    Published 2024-12-01
    “…The improved performance of the MEAs with the hybrid carbon support is attributed to the ability of the CNF to act as a structural backbone, facilitate water removal, and provide abundant edge plane sites for anchoring the platinum catalyst, which promoted the oxygen reduction reaction and improved catalyst utilization. …”
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    Aloe Vera Extract-Mediated CuO NPs as Catalysts for the Synthesis of 4-Hydroxy-3-Methoxybenzaldehyde-Connected Piperidine Derivatives and Their Antibacterial Activity by Ponnusamy Packialakshmi, Perumal Gobinath, Anis Ahamed, Hissah Abdulrahman Alodaini, Ashraf Atef Hatamleh, Mohamed Taha Yassin, Akbar Idhayadhulla, Radhakrishnan Surendrakumar

    Published 2023-01-01
    “…We have designed an easy, affordable, and eco-friendly technique for Schiff base preparation of vanillin-coupled piperidine analogues using CuO NPs as a catalyst. Using a green chemistry strategy using copper oxide nanoparticles (CuO NPs) as a catalyst, a unique one-pot synthesis of Schiff base vanillin-linked piperidine derivatives (2, 2a-2j) may be generated, with a potential yield in a short reaction time. …”
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  19. 299

    Carbon-resistant bifunctional catalyst composed of LaFeO3 enhanced Ni-CaO for integrated CO2 capture and conversion by Hengyu Wei, Min Lin, Juping Zhang, Di Gao, Yuhao Chen, Liang Zhang, Xing Zhu

    Published 2025-03-01
    “…More importantly, the activity of catalyst remains almost unchanged after 30 cycles. …”
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  20. 300

    A Comprehensive Study on Hydroxyl Multiwalled Carbon Nanotubes Used as Catalysts for VO2+/VO2+ Reaction in Vanadium Redox Flow Battery by Qiang Li, Anyu Bai, Zeqiang Qu, Tianyu Zhang, Jie Li, Xiaochen Zhang, Mingfu Yu, Zhichao Xue, Hong Sun

    Published 2019-01-01
    “…A comprehensive study on the hydroxyl multiwalled carbon nanotubes (hydroxyl MWCNTs) as catalysts in a positive reaction was performed to improve the efficiency of the vanadium redox flow battery (VRFB). …”
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