Showing 861 - 880 results of 1,089 for search '"catalyst"', query time: 0.04s Refine Results
  1. 861

    Investigation of Fe-Doped Graphitic Carbon Nitride-Silver Tungstate as a Ternary Visible Light Active Photocatalyst by Eid H. Alosaimi, Nadia Azeem, Noor Tahir, Asim Jilani, Muhammad Zahid, Salman. S. Alharthi, Javed Iqbal, Muhammad Yaseen, Zulfiqar Ahmad Rehan, Imran Shahid

    Published 2021-01-01
    “…The ternary nanocomposite (Fe-CN-AW) showed increased photodegradation efficiency (97%) within 120 minutes, at optimal conditions of pH = 8, catalyst dose = 50 mg/100 ml, an initial RhB concentration of 10 ppm, and oxidant dose 5 mM under sunlight irradiation. …”
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  2. 862
  3. 863
  4. 864

    Experimental Study on Fe3O4 Nanoparticle-Assisted Microwave Enhancing Heavy Oil by Teng Lu, Faqiang Dang, Haitao Wang, Qingmin Zhao, Zhengxiao Xu

    Published 2022-01-01
    “…The results show that nanoparticles can improve the wave absorption and heating capacity of heavy oil, and adding 0.6 wt% of nanomagnetic iron oxide catalyst can increase the heating rate of heavy oil in microwave by 60.6%; nanoparticle-assisted microwave heating method can effectively upgrade heavy oil and reduce viscosity. …”
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  5. 865

    Gel–sol synthesis of hierarchical CaO using pollen as biotemplate for biodiesel production by Zheng, Jingdi, Tao, Shuang, Yang, Ying, Tang, Ying

    Published 2024-05-01
    “…In this paper, a novel hierarchical calcium-based catalyst marked as CaO(S) has been established to catalyze oil-methyl acetate-methanol for no-glycerol biodiesel production. …”
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    Article
  6. 866

    Synthesis and application of iron nanoparticles from scrap metal for triclosan degradation in water via Fenton and Sono-Fenton oxidation by S. Bhaskar, K.V. Apoorva, Shabina Ashraf, T. Athul Devan

    Published 2025-04-01
    “…This study investigates the extraction of iron from scrap metal utilising acid digestion techniques and explores the production of iron nanoparticles for use as catalysts in Fenton and Sono-Fenton oxidation processes to degrade. …”
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  7. 867

    Rigid‐Flexible Coupling Realized by Synergistic Engineering of the Graphitic‐Amorphous Architecture for Durable and Fast Potassium Storage by Mingchi Jiang, Ning Sun, Bin Cao, Xuyang Jian, Razium Ali Soomro, Bin Xu

    Published 2025-01-01
    “…Systematically varying the catalyst content enables an optimal PGC design integrating a highly graphitized phase providing abundant active sites for K‐ion intercalation, balanced with an amorphous carbon region that accommodates volume expansion and facilitates ion diffusion. …”
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  8. 868
  9. 869

    Palladium-catalyzed Suzuki–Miyaura cross-coupling with $\alpha $-aminophosphonates based on 1,3,4-oxadiazole as ligands by Hkiri, Shaima, Touil, Soufiane, Samarat, Ali, Sémeril, David

    Published 2022-02-01
    “…Cross-coupling of aryl chlorides required a catalyst loading of 1 mol% to generate ortho-substituted biphenyls.…”
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  10. 870

    It takes a ‘spark’. Exploring parent perception of long-term sports participation after a practitioner-led, peer-group sports intervention for ambulant, school-aged children with c... by Georgina Clutterbuck, Mikaila Gent, Daniel Thomson

    Published 2025-06-01
    “…Conclusions: Parents of ambulant children who participated in a short term, practitioner-led, peer-group sports intervention perceived that Sports Stars was the catalyst for subsequent changes to their children's long-term sports participation. …”
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  11. 871

    Construction of All Solid State Bi2MoO6/Bi2WO6@Ti3C2 MXene Heterostructure System and the Mechanism Study of the Z-scheme Photocatalysis by Dongfang Zhang, Junkun Liu, Qiang Liu, Jiaxun Wang, Yang Qu

    Published 2025-01-01
    “…Crystal violet (CV)and p-nitrophenol (4-NP) were used as pollutants to simulate wastewater, and the photocatalytic degradation activity of the catalyst samples was evaluated under visible light. …”
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  12. 872

    Engineering active sites in ternary CeO2-CuO-Mn3O4 heterointerface embedded in reduced graphene oxide for boosting water splitting activity by Sahar Jafari, Zohreh Shaghaghi

    Published 2025-02-01
    “…Abstract The rational design of highly efficient and stable bifunctional catalysts for overall water splitting is vitally important. …”
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  13. 873

    Facile Synthesis of Functional Mesoporous Organosilica Nanospheres and Adsorption Properties Towards Pb(II) Ions by Liping Deng, Shichun Gu, Ruyi Wang, Yapeng He, Hairong Dong, Xue Wang

    Published 2025-01-01
    “…We successfully synthesize monodisperse sulfhydryl-modified mesoporous organosilica nanospheres (MONs-SH) via one-step hydrolytic condensation, where cetyltrimethylammonium chloride and dodecyl sulfobetaine are employed as dual-template agents with (3-mercaptopropyl)triethoxysilane and 1,2-bis(triethoxysilyl)ethane as the precursors and concentrated ammonia as the alkaline catalyst. The prepared MONs-SHs deliver a large specific surface area (729.15 m<sup>2</sup> g<sup>−1</sup>), excellent monodispersity, and homogeneous particle size. …”
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  14. 874

    Genetic and biochemical characterization of a radical SAM enzyme required for post-translational glutamine methylation of methyl-coenzyme M reductase by Roy J. Rodriguez Carrero, Cody T. Lloyd, Janhavi Borkar, Shounak Nath, Liviu M. Mirica, Satish Nair, Squire J. Booker, William Metcalf

    Published 2025-02-01
    “…ABSTRACT Methyl-coenzyme M reductase (MCR), the key catalyst in the anoxic production and consumption of methane, contains an unusual 2-methylglutamine residue within its active site. …”
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  15. 875

    Role of the regulator in enabling a just culture: a qualitative study in mental health and hospital care by Roland Bal, Ian Leistikow, Jan-Willem Weenink, Iris Wallenburg, Guy Widdershoven, Laura Hartman, Eva van Baarle

    Published 2022-07-01
    “…First, professionals and managers in healthcare organisations perceive the inspectorate as a potential catalyst for learning processes, for example, as an instigator of investigating incidents thoroughly, yet also as a potential barrier as its presence and procedures limit how open employees feel they can be. …”
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  16. 876

    Green Production of Indolylquinones, Derivatives of Perezone, and Related Molecules, Promising Antineoplastic Compounds by René Gerardo Escobedo-González, Héctor Pérez Martínez, Ma. Inés Nicolás-Vázquez, Joel Martínez, Gabriela Gómez, Juan Nava Serrano, Vladimir Carranza Téllez, C. L. Vargas-Requena, René Miranda Ruvalcaba

    Published 2016-01-01
    “…A green approach to produce the indolyl derivatives from four natural quinones (perezone, isoperezone, menadione, and plumbagin) was performed; in this regard, a comparative study was accomplished among the typical mantle heating and three nonconventional activating modes of reaction (microwave, near-infrared, and high speed ball milling or tribochemical), under solventless conditions and using bentonitic clay as a catalyst. In addition, the tribochemical production of isoperezone from perezone is also commented on. …”
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  17. 877

    Optimization of photocatalytic degradation of Eriochrome Black T from aqueous solution using TiO2-biochar composite by Mohammednur Abdu, Solomon Tibebu, Saeideh Babaee, Abebe Worku, Titus A.M. Msagati, Jemal Fito Nure

    Published 2025-03-01
    “…An optimal decolorization efficiency of 99.14 % and a mineralization efficiency of 93.7 % were achieved at pH 3, 32 mg/L dye concentration, 1.48 g/L catalyst dosage, and 124 min irradiation time. These findings highlight the potential of the TBC-1 composite as an effective and sustainable solution for water and wastewater treatment applications, contributing to improved environmental management practices.…”
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  18. 878

    Synthesis of bioactive quinazolin-4(3H)-one derivatives via microwave activation tailored by phase-transfer catalysis by El-Badry Yaser A., El-Hashash Mahr A., Al-Ali Khalil

    Published 2020-06-01
    “…Combination of MW and phase-transfer catalysis using tetrabutylammonium benzoate (TBAB) as a novel neutral ionic catalyst was used for carrying out N-alkylation and condensation reactions of compound 2 as a simple, efficient and eco-friendly technique. …”
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  19. 879

    Designing multivalent NiMn-based layered nanosheets with high specific surface area and abundant active sites for solid-state hydrogen storage in magnesium hydride by Tao Zhong, Tian Xu, Liuting Zhang, Fuying Wu, Yiqun Jiang, Xuebin Yu

    Published 2025-01-01
    “…In solid-phase catalysis, the extent of contact between the catalyst and the substrate determines the catalytic reaction in a great sense. …”
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  20. 880