in this scientific research, mno2 nanoparticles (nps) have been successfully prepared by a precipitation method using kmno4, mnso4.h2o and h2o2 (30%) as the precursors. as-prepared sample was identified by x-ray diffraction (xrd), scanning electron microscopy (sem), transmission electron microscopy (tem) and infrared (ir) techniques. the transmission electron microscopy (tem) showed 7-8 nm rang...

The low-temperature catalytic ozone oxidation of benzene was investigated. In this study, Al-SBA-16 (Si/Al = 20) that has a three-dimensional cubic Im3m structure and a high specific surface area was used for catalytic ozone oxidation for the first time. Two different Mn precursors, i.e., Mn acetate and Mn nitrate, were used to synthesize Mn-impregnated Al-SBA-16 catalysts. The characteristics ...

Oxidation of cyclooctene was studied in presence aqueous hydrogen peroxide (30%, v/v) over nano iron oxide. The catalyst prepared by microemulsion method and characterized using various techniques including XRD, TEM and BET techniques for evaluating phase, structure and morphology and surface area. In this study, we investigated the effects of varying the catalyst content, reaction temperature,...

Photocatalytic Water Oxidation The art representing article number 2203102 by Nathan I. Hammer, Jared H. Delcamp, and co-workers depicts the organic molecular photosensitizer QL11-OEG being irradiated with visible light under water. strong photooxidant is in a 16 microsecond long-lived excited state near ruthenium-based water oxidation catalyst. oxidizing catalyst to drive conversion of molecul...

14 15 The catalytic activity and durability of 2 wt. % Pd/Al2O3 in powder and washcoated on cordierite 16 monoliths were examined for the liquid phase hydrodechlorination (LPHDC) of polychlorinated 17 dibenzo-p-dioxins/polychlorinated dibenzofurans (PCDD/Fs). NaOH was employed as a 18 neutralizing agent, and 2-propanol was used as a hydrogen donor and a solvent. Fresh and spent 19 powder and mo...

This paper summarizes a XANES, XPS, XRD, and Mössbauer study of an oxygen reduction reaction (ORR) catalyst obtained via a heat treatment of polyaniline, iron, and carbon black. The catalyst was characterized at several critical synthesis stages and following heat treatment at various temperatures. The effect of sulfur during the synthesis was also investigated. XANES linear combination fitting...

Assumptions of individual rationality and preference stability provide the foundation for a convenient and tractable modeling approach. While both of these assumptions have come under scrutiny in distinct literatures, the two lines of research remain disjointed. This study begins by explicitly linking the two literatures while providing insights into perhaps the central issue facing behavioral ...

Computers can be very helpful to us by performing tasks on our behalf. For example, they are very good at performing calculations, storing information and producing visualisations of objects that do not yet exist as a made artifact. Increasingly, however, a different role is being found for the computer. It is the role of a catalyst, or a stimulant, to our own creative thinking. In such cases t...