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103 articles for “oxidation reactions”
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TiO2-ZrO2 Supported Nickel Oxide Catalysts for Hydrogenation of Levulinic Acid to -Valerolcatone
Abstract: The Titania-Zirconia (TZ) mixed oxide sample (50:50 wt.% percent) was prepared by a simple coprecipitation method and used as a support for the nickel catalyst. The various loadings of nickel content from 1 to 20 wt.% were synthesized for the production of γ-valerolactone (GVL) from levulinic acid (LA). Among all the tested samples, the 5 wt.% Ni/TZ sample exhibited the 98% conversion of LA and 96% selectivity to GVL and …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 3, 2022 · pp. 35–44 Read article
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Effect of Hot Corrosion on SA-213 and SA-516 Boiler Steels in Na2SO4-50%NaCl Molten Salts Environment at 800°C
Abstract: The aggressive environment corrosion at increasing temperature is the major problem in the components of boiler and gas turbine, etc. This degradation occurs by application of large variety of fuels like coal and oil, etc., at higher temperature. Boiler steel materials were found to be good corrosion resistance, but they lacked to corrosion at higher temperature in aggressive environment. The detonation gun Cr3C2-25NiCr sprayed coating provides an appropriate solution to …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 1–6 Read article
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Properties and Recent Progress in Oxide-Based Thermoelectric Materials
Abstract: Advanced thermoelectric materials that can be used efficiently for energy conversion have received significant research interest for the last decade because of the mounting demand for sustainable and eco-friendly energy technologies. The main advantage of thermoelectric materials is their capability to directly convert the waste heat into electrical energy which makes them highly promising for the recovery of waste heat from industrial processes, automotive systems and power generation applications. Oxide-based …
Published in International Journal of Energy and Thermal Applications · Vol. 4, Issue 2, 2026 Read article
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Solid Acid Catalysts for the Selective Conversion of Biomass to Levulinic Acid
Abstract: Levulinic acid (LA) has emerged as a versatile platform chemical with significant potential for producing renewable fuels like gamma-valerolactone (GVL), biodegradable polymers, and fine chemicals from biomass (both terrestrial and marine which ae rich in carbohydrate). The selective conversion of biomass-derived carbohydrates to LA requires efficient catalytic systems that can overcome the recalcitrance of the biomass, namely the stiff-necked structural integrity of cellulose and the kind of strong interactions between …
Published in Journal of Catalyst & Catalysis · Vol. 13, Issue 1, 2026 · pp. 23–35 Read article
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Use of Molybdenum Doped Titanium Dioxide as Nanophotocatalyst in the Degradation of Methylene Blue under Visible Light
Abstract: The Earth is facing environmental pollution in its different facets, out of which water pollution is a major problem. Photocatalysis, which is an important part of advanced oxidation processes, is such a technology, which will be beneficial for waste water treatment due to its green chemical nature. In the present work, the photocatalytic degradation of methylene blue (MB) was carried in the presence of molybdenum doped titania nanophotocatalyst and progress …
Published in Journal of Water Pollution & Purification Research · Vol. 2, Issue 2, 2015 · pp. 23–28 Read article
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Thermal Behavior of Biomass Ashes with the Influence of Additives: A Critical Review
Abstract: The gasification of biomass is undoubtedly one of the most promising processes for sustainable energy and heat production. The formation of low-melting ashes can compromise the proper functioning of plants. To address potential risks of ash fusion and agglomerate formation in high-temperature zones that may occur in downdraft reactor configurations, a detailed literature review on the use of additives to counteract the risk of ash formation and deposition has been …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 14, Issue 3, 2024 · pp. 1–11 Read article
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Titrimetric and Spectrophotometric Assay of Diethylcarbamazine Citrate in Pharmaceuticals using Permanganate as Oxidant
Abstract: Two titrimetric and one spectrophotometric methods are described for the determination of diethylcarbamazine citrate in bulk drug and dosage forms using permanganate as an oxidimetric agent. In method A, the drug solution in H2SO4 is titrated directly at 800C to a pink end point. DEC was treated with a measured excess of standard permanganate in H2SO4 medium, and after a contact time of 5 min, the residual oxidant back titrated …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 7, Issue 3, 2016 · pp. 1–11 Read article
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Synthesis of YSZ nanopowders by using PVA-metallic nitrate combustion method
Abstract: Yttria-stabilized zirconia (8YSZ) powder is widely used as a thermal barrier coatings material for various aeronautical gas turbine engine components and structures operating in high temperature environment as well as for the nozzle of solid rocket engine due to its relatively high thermal expansion coefficient, thermal reflectivity, low thermal and good corrosion resistance. The synthesis of single or composite metal oxides by combustion of metal-polyvinyl alcohol gel precursors (Me-PVA) has …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 14, Issue 3, 2024 · pp. 24–32 Read article
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Microwave-Assisted Synthesis of Li₃Ba₂Gd₃(MoO₄)₈ Phosphors Doped with Pr³⁺ and Sm³⁺ for High-Performance Red Emission in LED Applications
Abstract: In this study, we report the successful synthesis of Li₃Ba₂Gd₃(MoO₄)₈ (RE³⁺ = Pr³⁺, Sm³⁺) phosphors using a novel, microwave-assisted solid-state reaction method at ambient temperature. The synthesis involved the use of analytical grade reagents including Lithium Nitrate (LiNO₃), Barium Nitrate, Gadolinium Nitrate (Gd(NO₃)₃·6H₂O), Ammonium Molybdate ((NH₄)₆Mo₇O₂₄·24H₂O), and high-purity oxides of Praseodymium (Pr₂O₃) and Samarium (Sm₂O₃). The reagents were mixed in stoichiometric ratios, ground thoroughly in a pestle and mortar, and …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 18–32 Read article
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Integrated Plasma Gasification Technologies for Enhanced Energy Conversion and Environmental Sustainability: A Short Review
Abstract: Plasma Gasification emerged as a constructive tool for waste management and cleaner energy production. The versatility of the process makes it a promising solution of the global energy crises. In this paper, a brief coverup is done of integrated plasma models. Plasma technology is an emerging solution for recycling a wide range of waste making it a highly sustainable, efficient, and environment-friendly process. The integration of Plasma Gasification with complementary …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 67–75 Read article
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Electrochemical Exfoliation of Graphene Oxide (GO) and Thermally Reduced Graphene Oxide (TrGO) Using Ecofriendly Reducing Agent as Cow Urine
Abstract: The Graphene oxide (GO), the reduced form of GO i.e. (rGO) with thermally reduced graphene oxide (TrGO), have concerned significant interest in various fields with their exceptional properties. We investigate the electrochemical exfoliation processes of GO and rGO to understand their structural and electrochemical behavior of GO and TrGO through various characterization techniques. The electrochemical exfoliation method offers a versatile and scalable approach for the mass fabrication of the materials …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 89–100 Read article
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Synthesis and characterization of mixed SnO2-ZnO Nano composites material to study the kinetics of catalytic reduction of Aromatic Nitro compounds
Abstract: A straightforward and cost-effective method was employed to synthesize zinc oxide (ZnO) nanostructures supported on tin oxide (SnO₂) for catalytic applications. This hybrid nanocomposite, formed by integrating ZnO with SnO₂, exhibited impressive catalytic activity in the reduction of various nitro compounds. The synergistic interaction between ZnO and SnO₂ significantly enhanced the surface area and active sites of the catalyst, thereby improving its overall efficiency. The resulting SnO₂-ZnO nanocomposite not only …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 15, Issue 3, 2025 · pp. 8–14 Read article
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Experimental and Simulation Study on Reduction Kinetics of Magnetite Ore by using Hydrogen
Abstract: In the present work, magnetite ore fines pellets were prepared for a study of reduction kinetics using hydrogen gas. In the present work, various parameters are investigated to assess their influence on reduction kinetics with respect to hydrogen utilisation. The different input variables influence the process, yielding the reduction fraction. The effect of temperature on reduction kinetics with hydrogen flow rate was explored for the optimum value of these parameters. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 16, Issue 1, 2026 · pp. 71–81 Read article
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Removal of Thiophene from Model Fuel Using Titanium Catalyst
Abstract: Organosulfur compounds like thiophene (Th) and its alkyl derivatives are the major unwanted species present in crude oil fractions as they lead to the formation of sulfur oxides after combustion of the fuel and these oxides of sulfur cause severe environmental damage. Oxidative desulfurization (ODS) process is considered as one of the best alternative deep desulfurization technologies compared to hydrodesulfurization. In the ODS process, the sulfur compounds are oxidized to …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 1, 2016 · pp. 31–36 Read article
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Altitude Related Variation of Antioxidant Properties of Tea Leaf (Camellia sinensis)
Abstract: Places, in the high altitude are subject to higher UV radiation as compared to places of low altitude, provided they bear the same latitudinal location. Here, in this investigation, the oxidative stress and associated cell protection in tea plants growing in Mysore (12°30′ N 76°65′ E, 770 m) and Ooty (Dodabeta – 11°4090′ N, 76°6966′ E, 2623 m) has been studied. The UV radiation varies in these two places – …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 4, Issue 2, 2014 · pp. 1–6 Read article
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Heterogeneous Catalysis in Industrial Applications: A Review
Abstract: In many industrial processes, heterogeneous catalysis is essential because it improves reaction speeds and selectivity and makes catalyst recovery and reuse possible. This review explores the fundamental principles and diverse applications of heterogeneous catalysis in industry, with a focus on its economic and environmental benefits. We examine the structure and function of various catalysts, including metals, oxides, and zeolites, and their application in key industrial processes such as petrochemical refining, …
Published in Journal of Catalyst & Catalysis · Vol. 10, Issue 3, 2023 · pp. 17–23 Read article
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Investigation of Photocatalytic Degradation of Congo Red by Using Nano-sized Barium Chromate Catalyst
Abstract: Water pollution is a burning problem all over the world and there is a pressing demand to search green chemical routes to solve this problem. In this context, photocatalysis has emerged as a promising technology for waste water treatment, so that it may be reused. The present study involves the photocatalytic degradation of congo red dye in presence of semiconducting barium chromate powder used as a photocatalyst. The progress of …
Published in Journal of Water Pollution & Purification Research · Vol. 2, Issue 2, 2015 · pp. 14–22 Read article
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Characterization studies on surface activation of phosphor bronze wire mesh via different chemical means for water distillation applications
Abstract: Surface activation of phosphor bronze structured packing modules is an important step in the manufacturing of high efficiency water distillation columns as it ensures excellent mass transfer behaviour and overall process intensification. These packed columns are used in the nuclear industry for heavy water production and purification. Activation is generally achieved through a treatment involving aqueous NaOH solution with bubbling of oxygen gas through it. This leads to the development …
Published in Journal of Nuclear Engineering & Technology · Vol. 12, Issue 2, 2022 · pp. 10–23 Read article
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Samarium Borohydride as Effective Reagent for Synthesis of Various Imines and Secondary Amines
Abstract: A new and economical route for the oxidative homo-coupling of benzylamines with other aryl amines, and cross-coupling of benzyl alcohol and diverse arylamines to give respective imines with a high yield, and chemo-selectivity using samarium borohydride as the catalyst in a mild condition is reported. The sequential addition of samarium borohydride in a one-pot reaction to the imines generated in situ led to the generation of a number of secondary …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 9, Issue 1, 2018 · pp. 21–50 Read article
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Modification of Structural and Electrical Properties of GDC with Sb3+ Ions
Abstract: Gadolinium doped cerium (GDC) is a potential candidate as electrolyte in the solid oxide fuel cells operating in intermediate temperatures. The optimum performance of GDC is obtained only when sintered at higher temperatures (~1400°C), where cerium is prone to reduction. Improvement in the conductivity and stability of GDC is expected by doping it with trivalent ions. In the present context, successful attempts have been made to synthesize Ce0.8Gd0.1Sb0.1O2-δ by solid …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 18, Issue 3, 2016 · pp. 27–35 Read article