Showing 381 - 400 results of 1,089 for search '"catalyst"', query time: 0.06s Refine Results
  1. 381

    Magnetic polymeric ionic liquid for both catalysis application and magnetic solid phase extraction approach by Behrooz Maleki, Reza Sandaroos, Fahimeh Yousefi, Milad Ghani, Sahar Peiman

    Published 2025-01-01
    “…Then the desired catalyst was identified by TGA, FT-IR, VSM, and TEM techniques. …”
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    Article
  2. 382

    Optimization of the catalytic ozonation process using copper oxide nanoparticles for the removal of benzene from aqueous solutions by L. Mohammadi, E. Bazrafshan, M. Noroozifar, A.R. Ansari-Moghaddama, A.R. Khazaei Feizabad, A.H. Mahvi

    Published 2017-12-01
    “…The current study aimed to examine the overall feasibility of the use of copper oxide nanoparticles (CuO-NPs) as a catalyst in ozonation process for the removal of benzene from aqueous solutions under experimental conditions. …”
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    Article
  3. 383

    Effective Photodegradation of Methyl Orange Using Fluidized Bed Reactor Loaded with Cross-Linked Chitosan Embedded Nano-CdS Photocatalyst by Wai Szeto, Chi Wai Kan, C. W. M. Yuen, Shun-Wan Chan, Kim Hung Lam

    Published 2014-01-01
    “…In addition, the effects of catalyst dosage, initial dye concentration, and initial pH of the dye solution on the photodegradation kinetics were investigated. …”
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    Article
  4. 384

    A Comparative Study of AlCl3 and FeCl2-Modified TiCl4/MgCl2/THF Catalytic System in the Presence of Hydrogen for Ethylene Polymerization by Thanyathorn Niyomthai, Aniroot Ratchadaphet, Bunjerd Jongsomjit, Piyasan Praserthdam

    Published 2016-01-01
    “…Moreover, the activity enhancement was due to the formation of acidic sites by modifying the catalysts with Lewis acids. Thus, FeCl2 doped catalyst (Fe-THF) exhibited the highest activity followed by AlCl3 doped catalyst (Al-THF) and undoped catalyst (None-THF). …”
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    Article
  5. 385

    Reaction engineering of the hydrogenolysis of liquid n-Alkanes: Comparison of flow and batch reaction systems by Zhuoming Feng, Siwon Lee, Raymond J. Gorte, John M. Vohs

    Published 2025-03-01
    “…Currently there is much interest in developing catalysts for the hydrogenolysis of long-chain alkanes for use in the recycling and upcycling of waste polyolefins. …”
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    Article
  6. 386

    One-Pot Synthesis of β-Acetamido Ketones Using Boric Acid at Room Temperature by Zahed Karimi-Jaberi, Korosh Mohammadi

    Published 2012-01-01
    “…β-acetamido ketones were synthesized in excellent yields through one-pot condensation reaction of aldehydes, acetophenones, acetyl chloride, and acetonitrile in the presence of boric acid as a solid heterogeneous catalyst at room temperature. It is the first successful report of boric acid that has been used as solid acid catalyst for the preparation of β-acetamido ketones. …”
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  7. 387

    Catalytic Pyrolysis of Low Density Polyethylene Using Cetyltrimethyl Ammonium Encapsulated Monovacant Keggin Units C19H42N4H3(PW11O39) and ZSM-5 by Madeeha Batool, Asma Tufail Shah, Muhammad Imran Din, Baoshan Li

    Published 2016-01-01
    “…The effect of the catalysts on the pyrolysis of commercial low density polyethylene (LDPE) has been studied in a batch reactor. …”
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    Article
  8. 388

    Fabrication of Si3N4 Nanocrystals and Nanowires Using PECVD by Jingwei Song, Xiying Ma, Wang Zui, Chen Wei, Zhongpin Chen

    Published 2010-01-01
    “…With Fe catalyst, Si3N4 nanowires were developed, indicating that Fe catalyst played a role for Si3N4 molecules directionally depositing into strings. …”
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    Article
  9. 389

    Synthesis and Optimization of 2,5-Dihydroxyterephthalic Acid in a Slurry Reactor by Reza Pirdadeh Beiranvand, Saeed Ovaysi

    Published 2024-01-01
    “…Using a slurry reactor, a disodium salt of hydroquinone (DSH) is contacted by carbon dioxide gas in the presence of sodium acetate as a catalyst. A fractional factorial design is used to screen four parameters including reactor pressure, temperature, catalyst-to-DSH molar ratio, and reaction time. …”
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    Article
  10. 390

    Influences of Different Preparation Conditions on Catalytic Activity of Ag2O-Co3O4/γ-Al2O3 for Hydrogenation of Coal Pyrolysis by Lei Zhang, Sha Xiang-ling, Lei Zhang, Wang Rui, Zhang Lixin, Shu Xinqian

    Published 2014-01-01
    “…A series of catalysts of Ag2O-Co3O4/γ-Al2O3 was prepared by equivalent volume impregnation method. …”
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    Article
  11. 391

    Redox-mediated reverse water gas shift integrated with ammonia cracking over Ni/La0.75Sr0.25Cr0.5Mn0.5O3−δ by Martin Keller, Shih-Yuan Chen, Atul Sharma

    Published 2025-05-01
    “…We investigate the role of La0.75Sr0.25Cr0.5Mn0.5O3−δ (LSCM) in the redox-mediated RWGS, combined with a stabilized Ni catalyst to impart NH3 cracking functionality. The mixture of LSCM and Ni catalyst at a weight ratio of 10:1 increases the NH3 cracking activity fivefold compared to using only LSCM. …”
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    Article
  12. 392

    Boundary Layer of Photon Absorption Applied to Heterogeneous Photocatalytic Solar Flat Plate Reactor Design by Héctor L. Otálvaro-Marín, Miguel Angel Mueses, Fiderman Machuca-Martínez

    Published 2014-01-01
    “…The radiation field and the boundary layer thickness of photon absorption were simulated with absorption and dispersion effects of catalysts in water at different catalyst loadings. …”
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    Article
  13. 393

    Pilot-Scale Removal of Trace Steroid Hormones and Pharmaceuticals and Personal Care Products from Municipal Wastewater Using a Heterogeneous Fenton’s Catalytic Process by George Tangyie Chi, John Churchley, Katherine D. Huddersman

    Published 2013-01-01
    “…There was a <4% loss in iron content on the catalyst over the study period, suggesting negligible leaching of the catalyst.…”
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  14. 394

    Characterization of Pt-Pd/C Electrocatalyst for Methanol Oxidation in Alkaline Medium by S. S. Mahapatra, J. Datta

    Published 2011-01-01
    “…The physicochemical characterization of the catalyst was done by SEM, XRD, and EDX. The electrochemical characterization of the Pt-Pd/C catalyst for methanol electro-oxidation was studied over a range of NaOH and methanol concentrations using cyclic voltammetry, quasisteady-state polarization, chronoamperometry, and electrochemical impedance spectroscopy. …”
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  15. 395

    Nano-ZnO Catalyzed Multicomponent One-Pot Synthesis of Novel Spiro(indoline-pyranodioxine) Derivatives by Harshita Sachdeva, Rekha Saroj, Diksha Dwivedi

    Published 2014-01-01
    “…The mild reaction conditions and recyclability of the catalyst make it environmentally benign synthetic procedure.…”
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  16. 396

    Sonocatalytic Degradation of Antibiotics Tetracycline by Mn-Modified Diatomite by Yiping Guo, Xiao Mi, Guoting Li, Xi Chen

    Published 2017-01-01
    “…Mn-modified diatomite was prepared by wet impregnation and subsequent calcinations processes. It was used as catalyst for sonocatalytic degradation of antibiotics tetracycline. …”
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    Article
  17. 397

    Calculation of Start-Up Time of Passive Catalytic Hydrogen Recombiner of Localization Safety System of a Nuclear Power Plant Equipped with VVER by V. V. Sorokin

    Published 2022-02-01
    “…The problem is starting from a cold state since the activity of the cold catalyst is low, and the thrust is not observed until the catalyst is heated and a column of warm gas is formed inside the device. …”
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    Article
  18. 398

    Development of Cutaneous Bioadhesive Ureasil-Polyether Hybrid Films by João Augusto Oshiro Junior, Flávia Chiva Carvalho, Christiane Pienna Soares, Marlus Chorilli, Leila Aparecida Chiavacci

    Published 2015-01-01
    “…The objective of this work was to study the influence of the use of an acid catalyst (hydrochloric acid) and a basic catalyst (ammonium fluoride) in the hydrolysis and condensation reactions on the time formation and bioadhesion of ureasil-polyether films. …”
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    Article
  19. 399

    New Approach of the Oxidant Peroxo Method (OPM) Route to Obtain Ti(OH)4 Nanoparticles with High Photocatalytic Activity under Visible Radiation by André E. Nogueira, Lucas S. Ribeiro, Luiz F. Gorup, Gelson T. S. T. Silva, Fernando F. B. Silva, Caue Ribeiro, Emerson R. Camargo

    Published 2018-01-01
    “…In addition, the catalyst presented a great potential for the reduction of CO2 under ultraviolet (UV) radiation when compared to P25, which is a classic catalyst used in photocatalytic processes. …”
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  20. 400

    Effect of Catalytic Pyrolysis Conditions Using Pulse Current Heating Method on Pyrolysis Products of Wood Biomass by Sensho Honma, Toshimitsu Hata, Takashi Watanabe

    Published 2014-01-01
    “…The influence of catalysts on the compositions of char and pyrolysis oil obtained by pyrolysis of wood biomass with pulse current heating was studied. …”
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    Article