Results 21 to 30 of about 86,821 (289)

On the catalytic behavior of copper toward oxygen reduction reaction in alkaline solution [PDF]

شیمی کاربردی روز, 2013
The kinetic and mechanistic aspects of the oxygen reduction reaction as well as the electrocatalytic effect of copper surface in alkaline solution were studied by cyclic voltammetry and rotating disk electrode technique. In the potential range of -0.4 to
Ali Arab, Fereydoon Gobal
doaj   +1 more source

Pt supported on C-TiO2 and C-ZrO2 Composite Materials and Their Evaluation in the Anodic Oxidation of Ethanol

International Journal of Electrochemical Science, 2021
C-TiO2 and C-ZrO2 composite materials were prepared with different metal oxide contents (C-TiX and C-ZrX series with X = 5, 23 and 50 wt. % TiO2 or ZrO2, respectively) to modify their surface acidity and to evaluate their effects on the Pt catalyst ...
M. Castro-Gómez, A. Gutiérrez-Alejandre, M. Aguilar-Franco, L.C. Ordoñez   +3 more
doaj   +1 more source

Manganese-containing mixed oxide electrodes as anode materials for degradation of model organic pollutants [PDF]

, 2017
Mixed oxide thin film electrodes have been prepared by thermal decomposition from alcoholic solution on Pt substrate. In particular, three different anodes have been obtained by co-deposition of Ru (Ruthenium) and Mn (Manganese) oxides, Ru, Mn and Cu ...
Montanaro, Daniele, Orsini, Monica, Petrucci, Elisabetta, Sotgiu, Giovanni   +3 more
core   +1 more source

CO₂ Sorbents Based on Spherical Carbon and Photoactive Metal Oxides: Insight into Adsorption Capacity, Selectivity and Regenerability

Molecules, 2022
This work aimed to obtain hybrid composites based on photoactive metal oxide and carbon having adsorption properties. The materials, composed of titanium dioxide or zinc oxide and spherical carbon, were obtained from resorcinol-formaldehyde resin ...
Iwona Pełech, Ewelina Kusiak-Nejman, Piotr Staciwa, Daniel Sibera, Joanna Kapica-Kozar, Agnieszka Wanag, Filip Latzke, Karolina Pawłowska, Adrianna Michalska, Urszula Narkiewicz, Antoni W. Morawski   +10 more
doaj   +1 more source

Crystal Structure and Hirshfeld Surface Analysis of Bis(Triethanolamine)Nickel(II) Dinitrate Complex and a Revelation of Its Characteristics via Spectroscopic, Electrochemical and DFT Studies Towards a Promising Precursor for Metal Oxides Synthesis

Crystals, 2020
Metal complexes with chelating ligands are known as promising precursors for the synthesis of targeted metal oxides via thermal decomposition pathways. Triethanolamine (TEA) is a versatile ligand possessing a variety of coordination modes to metal ions ...
Wanchai Deeloed, Suttipong Wannapaiboon, Pimporn Pansiri, Pornsawan Kumpeerakij, Khamphee Phomphrai, Apirat Laobuthee, Yuranan Hanlumyuang, Songwut Suramitr, Piyanut Pinyou, Worawat Wattanathana   +9 more
doaj   +1 more source

Bromocyclization of Unsaturated Oximes. Synthesis of Five-Membered Cyclic Nitrones (Pyrroline N-Oxides)

Zeitschrift für Naturforschung B, 2006
The cyclization of a ribose-derived pentenose oxime with various halogen electrophiles showed bromine to be the most effective reagent, leading to 80% of L-lyxo/D-ribo-pyrroline N-oxides in an 84:16 diastereomeric ratio. In order to explore the scope of this facile process, several other γ,δ - unsaturated oximes were submitted to this reaction ...
Mahendra Gulla, Lars Bierer, Stefan Schmidt, Leo Redcliffe, Volker Jäger   +4 more
openaire   +1 more source

Hydrothermal Synthesis of CuO-SnO2 and CuO-SnO2-Fe2O3 Mixed Oxides and their Electrochemical Characterization in Neutral Electrolyte

International Journal of Electrochemical Science, 2009
Hydrothermal synthesis of CuO-SnO2 and CuO-SnO2-Fe2O3 mixed oxides is done in an autoclave using the precursors and urea. The powders are characterized by XRD, XRF, SEM and XPS.
M. Jayalakshmi, K. Balasubramanian
doaj   +1 more source

Insights into the Antioxidant Mechanism of Newly Synthesized Benzoxazinic Nitrones: In Vitro and In Silico Studies with DPPH Model Radical

Antioxidants, 2021
Synthetic nitrone spin-traps are being explored as therapeutic agents for the treatment of a wide range of oxidative stress-related pathologies, including but not limited to stroke, cancer, cardiovascular, and neurodegenerative diseases. In this context,
Stefania Marano, Cristina Minnelli, Lorenzo Ripani, Massimo Marcaccio, Emiliano Laudadio, Giovanna Mobbili, Adolfo Amici, Tatiana Armeni, Pierluigi Stipa   +8 more
doaj   +1 more source

Lanthanides extraction processes in molten fluoride media. Application to nuclear spent fuel reprocessing [PDF]

, 2009
This paper describes four techniques of extraction of lanthanides elements (Ln) from molten salts in the general frame of reprocessing nuclear wastes; One of them is chemical: the precipitation of Ln ions in insoluble compounds (oxides or oxifluorides);
Cassayre, Laurent, Chamelot, Pierre, Gibilaro, Mathieu, Massot, Laurent, Nourry, Christophe, Taxil, Pierre   +5 more
core   +2 more sources

Electrochemical Characterization and Detection of Lead in Water Using SPCE Modified with BiONPs/PANI

Nanomaterials, 2021
The need for constant assessment of river water qualities for both aquatic and other biological survival has emerged a top priority, due to increasing exposure to industrial pollutants.
Enyioma C. Okpara, Samuel Che Nde, Omolola E. Fayemi, Eno E. Ebenso   +3 more
doaj   +1 more source