Showing 221 - 240 results of 1,089 for search '"catalyst"', query time: 0.05s Refine Results
  1. 221
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    Optimization of the Esterification Process of Crude Palm Oil (CPO) with Natural Zeolite Catalyst Using Response Surface Methodology (RSM) by Said Ahmad Fadhilah, Elma Fatkhurin, Ni Ketut Sari

    Published 2025-01-01
    “…The esterification reaction can be accelerated by using natural zeolite as a catalyst. Optimization needs to be carried out to select the appropriate conditions to reach the optimal region quickly. …”
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    Article
  3. 223

    Efficient synthesis of phosphorus-promoted and alkali-modified ZSM-5 catalyst for catalytic dehydration of lactic acid to acrylic acid by Ainur Syeitkhajy, Mohammed Alfatih Hamid, Mehtap Safak Boroglu, Ismail Boz

    Published 2025-01-01
    “…This study presents a novel one-pot synthesis method for phosphorus-enhanced ZSM-5 zeolite, followed by post-synthesis alkali treatment. The resulting catalyst is designed for the sustainable production of acrylic acid (AA) from lactic acid (LA). …”
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  4. 224

    Transient pulsed discharge preparation of graphene aerogel supports asymmetric Cu cluster catalysts promote CO2 electroreduction by Kaiyuan Liu, Hao Shen, Zhiyi Sun, Qiang Zhou, Guoqiang Liu, Zhongti Sun, Wenxing Chen, Xin Gao, Pengwan Chen

    Published 2025-01-01
    “…Abstract Designing asymmetrical structures is an effective strategy to optimize metallic catalysts for electrochemical carbon dioxide reduction reactions. …”
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    Article
  5. 225
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    Enhancing Activity of Pd-Based/rGO Catalysts by Al-Si-Na Addition in Ethanol Electrooxidation in Alkaline Medium by Minh Dang Nguyen, Lien Thi Tran, Quang Minh Nguyen, Thao Thi Nguyen, Thu Ha Thi Vu

    Published 2019-01-01
    “…The article presents modified Pd-based catalysts supported on reduced graphene oxide (rGO), used in the electrooxidation reaction of ethanol in alkaline medium. …”
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  7. 227

    Catalytic Combustion of Low Concentration Methane over Catalysts Prepared from Co/Mg-Mn Layered Double Hydroxides by Hongfeng Liu, Xingrui Fu, Xiaole Weng, Yue Liu, Haiqiang Wang, Zhongbiao Wu

    Published 2014-01-01
    “…Experimental results revealed that the Co4.5Mg1.5Mn2LDO catalyst possessed the best performance with the T90=485°C. …”
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  8. 228

    Effects of Synthesis Conditions on Rare Earth Doped Iron Oxide Catalyst for Selective Catalytic Reduction of NOx with NH3 by Ying Wei, Bingquan Wang, Ruiyi Ren, Rui Wang

    Published 2023-03-01
    “…Abstract A series of rare earth-doped Fe-based oxide catalysts were prepared by co-precipitation method as Selective Catalytic Reduction (SCR) catalysts. …”
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    Destruction of Toluene by the Combination of High Frequency Discharge Electrodeless Lamp and Manganese Oxide-Impregnated Granular Activated Carbon Catalyst by Jianhui Xu, Chaolin Li, Qian Zhang, Di He, Peng Liu, Yong Ren

    Published 2014-01-01
    “…The role of MnO2-impregnated GAC catalyst is not only to eliminate the residual O3 completely but also to enhance the decomposition and mineralization of toluene.…”
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  12. 232
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    Synthesis of Acidic Heterogeneous Catalysts with High Stability Based on Graphene Oxide/Activated Carbon Composites for the Esterification of Lactic Acid by Thu Ha Thi Vu, Manh Ha Nguyen, Minh Dang Nguyen

    Published 2019-01-01
    “…Graphene oxide was supported on activated carbon (GO/AC) to more easily filter the catalyst from the reactants. The catalysts were characterized by such methods as XRD, FT-IR, SEM, BET, and the acid-base titration. …”
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  14. 234
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    Effect of a bimetal Mn/Zn catalyst supported on activated carbon for selective oxidation of ethyl lactate to ethyl pyruvate by G. Madhanagopal, K. Premalatha, P.N. Poovizhi, V. Sumithra, S. Mahalingam, L. Guganathan, S. Sivakumar, A. Subramani, P. Tamizhdurai

    Published 2025-04-01
    “…This approach utilizes readily available starting materials and a streamlined process, making the AC/Mn/Zn catalyst commercially attractive for large-scale production. …”
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    Article
  16. 236

    Thermally Stable Forms of Pure Polyaniline Catalyzed by an Acid-Exchanged Montmorillonite Clay Called Maghnite-H+ as an Effective Catalyst by Rahmouni Abdelkader, Harrane Amine, Belbachir Mohammed

    Published 2012-01-01
    “…Polyaniline salt form (PANI-ES) was synthesized by oxidative polymerization of aniline using potassium persulfate as an oxidant and an acid-exchanged montmorillonite clay called Maghnite-H+ as an effective catalyst. The clay, which was used as a catalyst, was supplied by a local company known as ENOF Maghnia (Western Algeria). …”
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  17. 237

    Effects of Prepolymerization, Temperature, and Hydrogen Concentration on Kinetics of Propylene Bulk Polymerization Using a Commercial Ziegler-Natta Catalyst by Huiyue Liu, Gaiping Du, Yafeng Du, Dezhan Li, Jiangbo Chen

    Published 2022-01-01
    “…The effects of prepolymerization, temperature, and hydrogen concentration on propylene bulk polymerization with a commercial Ziegler-Natta catalyst were investigated, and the apparent polymerization rate constants were estimated by varying reaction temperatures, hydrogen partial pressures, and polymerization methods. …”
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  19. 239

    Selective Oxidation of Styrene to Benzaldehyde by Co-Ag Codoped ZnO Catalyst and H2O2 as Oxidant by Abderrazak Aberkouks, Ayoub Abdelkader Mekkaoui, Brahim Boualy, Soufiane El Houssame, Mustapha Ait Ali, Larbi El Firdoussi

    Published 2018-01-01
    “…Various ratio of Co-Ag supported on ZnO have been evaluated in the selective catalytic oxidation of styrene to benzaldehyde, using H2O2 as an oxidant. The catalysts were prepared by a sol-gel process and were characterized using XRD, FT-IR, TG-DTG, BET, and SEM/EDX. …”
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  20. 240

    Synthesis of Nitrogen-Doped Carbon Nanocoils with Adjustable Morphology using Ni–Fe Layered Double Hydroxides as Catalyst Precursors by Tomohiro Iwasaki, Masashi Tomisawa, Takuma Yoshimura, Hideya Nakamura, Masao Ohyama, Katsuya Asao, Satoru Watano

    Published 2015-01-01
    “…The nickel iron oxide/nickel oxide nanocomposites, which were derived from nickel–iron layered double hydroxide (LDH) precur‐ sors, were employed as catalysts for the synthesis of CNCs. In this method, precursor-to-catalyst transformation, catalyst activation, formation of CNCs, and nitrogen doping were all performed in situ in a single process. …”
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