Showing 421 - 440 results of 1,089 for search '"catalyst"', query time: 0.04s Refine Results
  1. 421

    Sulfur-vulcanized CoFe2O4 with high-efficiency photo-to-thermal conversion for enhanced CO2 reduction and mechanistic insights into selectivity by Xiaoke Chen, Ming Cai, Pengwei Huo, Yan Yan, Yue Zhang, Pengxin Li, Zhi Zhu

    Published 2025-03-01
    “…This study introduces a novel CoFe2O3.5S0.5 photothermal catalyst, synthesized via hydrothermal methods with particle sizes ranging from 5 to 10 nm. …”
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    Article
  2. 422

    Variation of the Number of Heat Sources in Methane Dry Reforming: A Computational Fluid Dynamics Study by Sunggeun Lee, Hankwon Lim

    Published 2021-01-01
    “…The dependence on the number of heat source of the hydrogen production was investigated under the assumption of the fixed volume of the catalyst bed. By changing these numbers, we numerically investigated the methane conversion and hydrogen flow rate to find the best performance. …”
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    Article
  3. 423

    Recent Advances in the Valorization of Biodiesel By-Product Glycerol to Solketal by Supongsenla Ao, Samuel Lalthazuala Rokhum

    Published 2022-01-01
    “…Recently, several heterogeneous acid-catalysts stand out as a promising catalyst for solketal production where biomass-based catalyst gained attraction owing to their biodegradability, eco-friendly, and abundant availability. …”
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    Article
  4. 424

    Photocatalytic degradation of chlorinated ethenes by Kyoichi Oki, Sachiko Tsuchida, Hiromasa Nishikiori, Nobuaki Tanaka, Tsuneo Fujii

    Published 2003-01-01
    “…Degradation of three chlorinated ethenes, trichloroethylene, trans-1,2-dichloroethylene and cis-1,2-dichloroethylene, by UV-light irradiated TiO2 catalyst prepared by the sol-gel method in dry air at ambient temperature have been examined by using FTIR measurement. …”
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    Article
  5. 425

    Recent advances in organocatalytic atroposelective reactions by Henrich Szabados, Radovan Šebesta

    Published 2025-01-01
    “…The last part of the article discusses hydrogen-bond-donating catalysts and other catalyst motifs such as phase-transfer catalysts.…”
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    Article
  6. 426

    Effect of Operating Conditions on Catalytic Gasification of Bamboo in a Fluidized Bed by Thanasit Wongsiriamnuay, Nattakarn Kannang, Nakorn Tippayawong

    Published 2013-01-01
    “…Experiments were performed to determine the effects of reactor temperature (400, 500, and 600°C), gasifying medium (air and air/steam), and catalyst to biomass ratio (0 : 1, 1 : 1, and 1.5 : 1) on product gas composition, H2/CO ratio, carbon conversion efficiency, heating value, and tar conversion. …”
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    Article
  7. 427

    Synthesis and Optimization of MWCNTs on Co-Ni/MgO by Thermal CVD by H. Ryu, B. K. Singh, K. S. Bartwal

    Published 2008-01-01
    “…Monometallic and bimetallic Co and Ni combinations were used as a catalyst on MgO support. The mixer of H2/C2H2 was used as a carbon source. …”
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    Article
  8. 428

    Comparison of Electronic Structure and Magnetic Properties of Few Layer Graphene and Multiwall Carbon Nanotubes by Sekhar Chandra Ray

    Published 2016-01-01
    “…A comparative study has been made for the non-catalyst based few layer graphene (FLG) and Fe-catalyst based multiwall carbon nanotubes (MWCNTs). …”
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    Article
  9. 429

    Recent Developments of Electrochemical Promotion of Catalysis in the Techniques of DeNOx by Xiaolong Tang, Xianmang Xu, Honghong Yi, Chen Chen, Chuan Wang

    Published 2013-01-01
    “…The active ingredient of catalyst can be activated by applying constant voltage or constant current to the catalysts/electrolyte interface. …”
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    Article
  10. 430

    Photocatalytic Degradation of Methylene Blue by Fe/ZnO/SiO2 Nanoparticles under Visiblelight by R. M. Mohamed, I. A. Mkhalid, E. S. Baeissa, M. A. Al-Rayyani

    Published 2012-01-01
    “…The photocatalytic activity of Fe/ZnO/SiO2 catalysts under visible-light irradiation for the degradation of methylene blue was evaluated. …”
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    Article
  11. 431

    Studies of biodiesel production using various blends of waste palm cooking oil and castor oil by Rao Geevitha Anantha, Krishnan Soundarajan

    Published 2025-01-01
    “….%), molar ratios of methanol: oil, catalyst concentrations (wt.%), reaction time, reaction temperature and various co-solvents have been investigated to determine the optimal conditions for transesterification reaction. …”
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    Article
  12. 432

    Simple Method to Synthesize Functionalized Carbon Nanotubes Employing Cobalt Nitrate and Acetone by Using Spray Pyrolysis Deposition Technique by Jorge A. Gómez, Alfredo Marquez, Antonino Pérez, A. Duarte-Moller

    Published 2012-01-01
    “…In the present work we show the influence of the catalyst employed on the synthesis of functionalized multiwall carbon nanotubes (MWCNTs) utilizing acetone as carbon source and cobalt nitrate Co(NO3)2 as catalyst.…”
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    Article
  13. 433

    Synthesis of Disentangled Ultra-High Molecular Weight Polyethylene: Influence of Reaction Medium on Material Properties by Giuseppe Forte, Sara Ronca

    Published 2017-01-01
    “…The observations are that an unexpected increase of catalyst activity, accompanied by a significant improvement in mechanical properties, is found when using a carefully chosen mixture of solvents. …”
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  14. 434

    Polymeric nanoreactors for catalytic applications by Abou-Fayssal, Chantal Joseph, Poli, Rinaldo, Philippot, Karine, Riisager, Anders, Manoury, Eric

    Published 2024-06-01
    “…Anchoring the catalyst inside the polymer core protects it from the surrounding environment. …”
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    Article
  15. 435

    Simulation of a catalytic deoxygenation reaction of fatty acids to produce biohydrocarbons and evaluation of the influence of reaction parameters on the conversion and selectivity... by Rafael Mesquita de Moura, Bruna Xisto Silva Sampaio, Isabella Diniz Oliveira, Josué Furbino de Melo, Brunela Pereira da Silva, Fernando Cotting, Daniel Bastos de Rezende

    Published 2024-05-01
    “…The parameters evaluated were temperature, pressure, hydrogen feed, and catalyst mass. For this simulation, hydrogen and stearic acid were chosen as feedstocks, focusing on the heptadecane and octadecane production. …”
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  16. 436
  17. 437

    Improving Photocatalytic Efficiency with Titanium Dioxide Quantum Dots by Nam Duy Dao, Tho Thi Lam, Anh Dieu Van, Ha Thi Thu Vu, Hai Huynh Trung

    Published 2024-10-01
    “…The reaction conditions were evaluated based on factors such as catalyst dose, initial MB concentration, and pH. The results indicate that optimal degradation efficiency of MB was achieved at a pH of 7, with a catalyst dose of 0.15 g/L and at a low MB concentration. …”
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  18. 438

    Microwave-assisted synthesis and catalytic activity of nano-sized molybdenum carbide in naphthalene hydrogenation by Artur Aghoyan, Argam V. Akopyan, Gurgen Aleksanyan, Davit Davtyan

    Published 2025-02-01
    “…Under optimal conditions 100 % naphthalene conversion was obtained: 4 MPa hydrogen pressure, 1 h, 350 °C, catalyst Mo2C-4min-mono. The catalyst retains its activity for at least 5 cycles of hydrogenation.…”
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    Article
  19. 439

    Modelling of Jatropha Oil Hydrocracking in a Trickle-Bed Reactor to Produce Green Fuel by Yuswan Muharam, null Dianursanti, Andrey Sapati Wirya

    Published 2021-01-01
    “…The optimisation was conducted to obtain the highest green fuel purity by varying catalyst particle diameter, inlet gas velocity, feed molar ratio, and inlet temperature. …”
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  20. 440

    Nanowires Nickel Oxide and Nanospherical Manganese Oxide Synthesized via Low Temperature Hydrothermal Technique for Hydrogen Peroxide Sensor by Suriani Ibrahim, Tawatchai Charinpanitkul, Eiry Kobatake, Mana Sriyudthsak

    Published 2016-01-01
    “…Binary catalyst nickel oxides (NiO) and manganese oxides (MnO) were prepared individually via hydrothermal route. …”
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    Article