Showing 701 - 720 results of 1,089 for search '"catalyst"', query time: 0.06s Refine Results
  1. 701

    Synthesis of Nitrogen-Doped ZnS with Camellia Brushfield Yellow Nanostructures for Enhanced Photocatalytic Activity under Visible Light Irradiation by Gang-Juan Lee, Chi-Lun Hong, Valentina Batalova, Gennady Mokrousov, Jerry Wu

    Published 2013-01-01
    “…The band gaps of nitrogen-doped ZnS composite catalysts were calculated to be in the range of 2.58~2.74 eV from the absorptions edge position. …”
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    Article
  2. 702

    Effect of Pd and Au Sensitization of Bath Deposited Flowerlike TiO2 Thin Films on CO Sensing and Photocatalytic Properties by Ashok K. Singh, S. B. Patil, Umesh T. Nakate, K. V. Gurav

    Published 2013-01-01
    “…Effect of Pd and Au catalysts sensitization on gas sensing as well as PC degradation properties is investigated. …”
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    Article
  3. 703

    A Comparative Study of the Oxygen Reduction Reaction on Pt and Ag in Alkaline Media by Alexander Rampf, Michael Braig, Stefano Passerini, Roswitha Zeis

    Published 2025-02-01
    “…Therefore, the ORR activity of Ag exceeds some of the here‐used Pt catalysts at high current densities. This work combines the benefits of the RRDE and the GDE half‐cell to study catalysts and identify the reaction mechanisms under conditions relevant to practical fuel cells and batteries. …”
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    Article
  4. 704

    Preparation of black-titanium dioxide nanotubes by thermal decomposition of sodium borohydride by Murat Efgan Kibar

    Published 2021-03-01
    “…Although the titanium dioxide exhibits superior proper-ties in ultra violet radiation, activity of the catalyst can be improved by some modifications specially for daylight radiation. …”
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    Article
  5. 705

    Investigation of Effective Parameters Ce and Zr in the Synthesis of H-ZSM-5 and SAPO-34 on the Production of Light Olefins from Naphtha by Omer Dhia Aldeen Salah Aldeen, Mustafa Z. Mahmoud, Hasan Sh. Majdi, Dhameer A. Mutlak, Khusniddin Fakhriddinovich Uktamov, Ehsan kianfar

    Published 2022-01-01
    “…In this paper, Ce and Zr modified commercial SAPO-34 and H-ZSM-5 catalysts were synthesized via a wet impregnation method and used as catalysts for the production of light olefins from naphtha. …”
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    Article
  6. 706

    Recent catalytic advances in the production of adipic acid and its esters from bio-based C6 molecules and carbon dioxide by Dinesh Kumar Mishra, Cong Chien Truong, Yeongin Jo, Young-Woong Suh

    Published 2025-12-01
    “…Here, we review the eco-friendly valorization of renewable bio-based C6 molecules, such as 5-hydroxymethylfurfural derivatives (e.g. 2,5-furandicarboxylic acid, 2,5-tetrahydrofuran dicarboxylic acid, and 1,6-hexanediol), sugar acid derivatives (i.e. d-glucaric acid, d-glucarate-6,3-lactone esters, glucarodilactone, mucic acid, and muconic acid), and CO2 into AA and its esters through a wide assortment of homogeneous and heterogeneous catalysis. The aspects of catalyst evaluation, operating conditions, and reaction mechanisms are comprehensively discussed. …”
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    Article
  7. 707

    Self-Assembly of TiO2/CdS Mesoporous Microspheres with Enhanced Photocatalytic Activity via Hydrothermal Method by Sujing Yu, Juncheng Hu, Jinlin Li

    Published 2014-01-01
    “…The as-synthesized TiO2/CdS mesoporous microspheres showed superior photocatalytic activity for the degradation of RhB under either visible light or simulated sunlight irradiation; the 10 wt% TiO2/CdS sample showed the best performance. Moreover, this catalyst showed improved stability, and the activity did not decrease significantly after four recycles. …”
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    Article
  8. 708

    Preparation and Characteristic of PC/PLA/TPU Blends by Reactive Extrusion by Yueyun Zhou, Lifa Luo, Wenyong Liu, Guangsheng Zeng, Yi Chen

    Published 2015-01-01
    “…To overcome the poor toughness of PC/PLA blends due to the intrinsic properties of materials and poor compatibility, thermoplastic urethane (TPU) was added to PC/PLA blends as a toughener; meantime, catalyst di-n-butyltin oxide (DBTO) was also added for catalyzing transesterification of components in order to modify the compatibility of blends. …”
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    Article
  9. 709

    Evolution of the U.S. Republican Party’s Foreign Policy Platform and Its Implementation Challenges (2000–2004) by K. K. Sukhoverkhov

    Published 2024-12-01
    “…Bush, where foreign policy experienced a significant shift towards neoconservative influences.The events of September 11, 2001, acted as a catalyst, fundamentally reshaping foreign policy objectives and altering public sentiment towards the Bush administration, as highlighted by sociological studies. …”
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  10. 710

    A special division of the Police Department and its participation in political life of Russian Empire. 1900–1914 by S. V. Novikov

    Published 2023-05-01
    “…Moreover, the agents of the Police Department actually served as a catalyst for the formation of militant organizations of revolutionary terrorists actively arranging political assassinations of statesmen. …”
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    Article
  11. 711

    Morbidity Cost and Willingness to Pay for Healthcare Insurance among Wheat Farmers in Jigawa State of Nigeria by Mohammed Sanusi Sadiq, Muhammad Ahmad, Emmanuel Gama, Abbas Sambo

    Published 2024-03-01
    “…Empirically, the majority of farmers utilised an accumulation strategy for livelihood sustenance, alongside enterprise diversification – which acted as a catalyst in increasing their stocks and consumption outcomes, thus smoothing their income and consumption. …”
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  12. 712

    Anticancer, Antibacterial, Antioxidant, and DNA-Binding Study of Metal-Phenalenyl Complexes by Subhadeep Sen, Nilkanta Chowdhury, Tae-Wan Kim, Mohuya Paul, Dilip Debnath, Seob Jeon, Angshuman Bagchi, Jungkyun Im, Goutam Biswas

    Published 2022-01-01
    “…Various applications of metal-based phenalenyl complexes (metal-PLY) have been reported, such as catalyst, quantum spin simulators, spin electronic devices, and molecular conductors, but the biological significance of metal-PLY (metal = Co(II), Mn(III), Ni(II), Fe(III), and Al(III)) systems has yet to be explored. …”
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  13. 713

    Photocatalytic Active Coatings for Lignin Degradation in a Continuous Packed Bed Reactor by Colin Awungacha Lekelefac, Johannes Hild, Peter Czermak, Michael Herrenbauer

    Published 2014-01-01
    “…The synthesis of immobilized catalyst on porous glass support material via the sol-gel route is reported. …”
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  14. 714

    Photocatalytic Activity of Ti-SBA-15/C3N4 for Degradation of 2,4-Dichlorophenoxyacetic Acid in Water under Visible Light by Hoa T. T. Duong, Mai T. P. Duong, Oanh K. Nguyen, Son T. Le, Long V. Dang, Binh T. Nguyen, Dang V. Do

    Published 2022-01-01
    “…In the present study, the photocatalytic activity of Ti-SBA-15/C3N4 catalysts was investigated to degrade 2,4-Dichlorophenoxyacetic acid (2,4-D) herbicides in water under visible light irradiation. …”
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  15. 715

    Synthesis, Characterization, and Application of Fe2O3 Nanophotocatalyst for the Treatment of Various Pollutants in Aqueous Phase: A Systematic Review by Aya Khalaf, Duaa Abu-Dalo, Ehab AlShamaileh

    Published 2024-01-01
    “…Photochemical reactions accelerate the breaking down of organic pollutants using a photocatalyst that absorbs light and serves as a catalyst for chemical operations. There are a lot of photocatalysts that are used in water purification, such as TiO2, ZnO, ZrO2, CdS, CeO2, ZnS, FeO, Fe2O3, SnO2, and WO3, and most of them are at the nanoscale. …”
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  16. 716

    Important role of H2 spillover in asymmetric hydrogenation of quinolines in hybrid systems by Yiqi Ren, Xin Liu, Jiali Liu, Huicong Dai, Maodi Wang, Qihua Yang

    Published 2025-02-01
    “…Abstract The phenomenon of hydrogen spillover usually involved in the hydrogenation reactions over supported metal catalysts has been seldom reported over molecular catalysts. …”
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  17. 717

    Guest Editorial: The Gig Economy and Women Workers in the Middle East by Stella Morgana

    Published 2025-01-01
    “…Does digitalisation represent a catalyst for female labour participation in the region or a burden leading to further financial insecurity and invisibility? …”
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  18. 718

    Analysis of Process Variables via CFD to Evaluate the Performance of a FCC Riser by H. C. Alvarez-Castro, E. M. Matos, M. Mori, W. Martignoni, R. Ocone

    Published 2015-01-01
    “…The model considers 12 lumps with catalyst deactivation by coke and poisoning by alkaline nitrides and polycyclic aromatic adsorption to estimate the kinetic behavior which, starting from a given feedstock, produces several cracking products. …”
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  19. 719

    Microwave Assisted Synthesis of N-Substituted-7-hydroxy-4-methyl-2-oxoquinolines as Anticonvulsant Agents by P. Y. Pawar, P. M. Gaikwad, P. H. Balani

    Published 2011-01-01
    “…The compound 1-{4ɴ-[(substituted benzylidene)-amino]-biphenyl-4-yl}-7-hydroxy-4-methyl-1H-quinolin-2-one (3a-j) on cyclization with chloro acetyl chloride in presence of triethylamine as catalyst under microwave irradiation furnished 1-{4ʹ-[3-chloro-2-(substituted phenyl)-4-oxo-azetidin-1-yl]-biphenyl-4-yl}-7-hydroxy-4-methyl-1H-quinolin-2-one (4a-j). …”
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  20. 720

    India’s Policies in Support of the New Space by I. V. Danilin, E. P. Shavlay

    Published 2022-11-01
    “…We use comparative analysis to assess the current state and prospects of the industry and its possible implications for the Indian global positions.The study shows that New Delhi aims to embrace new realities amidst ambitious economic targets, social challenges, and growing geopolitical tensions with China, with the pandemic acting as a catalyst. Thanks to innovative measures, India has already become one of the central space players, but it still falls short of leadership in the New Space due to its resourceconstrained and state-centered course. …”
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