X-ray Spectroscopy

In this paper, Ba doped LaMnO3 nanoparticles (LBMO), a promissing material for making cathode of SOFC, were prepared by microwave combustion method. This material has many advantages. Effect of the amount fuel in the combustion reaction on the products was studied by various methods such as: X-ray diffraction measurement, scanning electron microscopy, energy dispersive Xray spectroscopy. The results showed that each doping rate requires an appropriate amount of fuel to obtain pure and crystalline product.

9p trinhthamhodang9 10-12-2020 12 1   Download

The present work reveals the green combustion preparation of the Ag-doped ZnO nanoparticles (NPs) using turmeric root extract as a fuel. The structure and morphology of Ag-doped ZnO NPs were investigated by several analytical techniques such as XRD (X-Ray Diffraction), SEM (Scanning Electron Microscopy), TEM (Transmission Electron Microscopy), FTIR (Fourier Transform Infrared), Raman, XPS (XRay Photoelectron Spectroscopy), and UV-Visible Spectroscopy (UVeVis).

7p tamynhan4 06-09-2020 17 2   Download

Unmodified montmorillonite clay was utilized as a low cost adsorbent for the removal of heavy metals from a contaminated automobile effluent. Fourier transform infrared spectroscopy, Xray diffraction and scanning electron microscopy were used to characterize the adsorbent. Batch sorption experiments were performed at an optimum effluent pH of 6.5, adsorbent dose of 0.1 g, particle size of 100 lm and equilibrium contact time of 180 min. Thermodynamic analysis was also conducted. Equilibrium data were analyzed by the Langmuir, Freundlich, Temkin and Dubinin–Radushkevich models.

11p trinhthamhodang1 16-11-2019 20 1   Download

The N,O-bidentate ligand 2-((methylimino)methyl)pyren-1-ol (1) gives with nickel acetate in a mixed solvent of toluene and ethanol in the presence of NaOAc the nickel(II) complex 1(Ni). It was characterized by elemental analysis, IR, NMR, MS spectroscopy and single crystal Xray diffraction. With respect to the nickel atom the complex 1(Ni) adopts a distorted square planar trans-coordination geometry.

8p cathydoll4 21-02-2019 24 0   Download

Titanium oxide ST01, ST31, TiO2 catalysts modified by V5+, N2+ and supported on MCM41 and SiO2 have been used for photooxidation of p-xylene in gas phase. Physicochemical properties of catalysts were determined by the methods of BET Adsorption, Xray Diffraction (XRD), UV-Vis spectroscopy, and atom adsorption spectroscopy (AAS) methods. The photocatalytic activity of catalysts were determined after thermal treatment as well as UV lighting. The common observation is that the higher temperature of treatment the lower conversion of p-xylene obtained.

11p uocvong02 24-09-2015 55 6   Download

The structural, morphological and optical properties of CBD deposited CdS thin films have been studied by varying the processing parameters and the Cd/S ratio of the starting precursors in order to better understand the growth conditions. The films were characterized by Xray diffraction, SEM, Raman, and photoluminescence spectroscopy. XRD patterns show that asdeposited CdS films were polycrystalline. The grain size are increasing with increasing the Cd/S ratio and/or the deposition time.

5p tuanlocmuido 19-12-2012 62 2   Download