نتایج جستجو برای: x ray spectroscopy
تعداد نتایج: 798305 فیلتر نتایج به سال:
This article gives an overview of the use of X-ray absorption spectroscopy to characterize the magnetic properties for technologically important, low dimensional magnetic materials. An overview is given both for the experimental hardware, the measurements and the analysis of the spectra. The information obtained is discussed for metallic and semiconducting systems, using both the X-ray magnetic...
Depth sensitivities: Research into the initial stages of hydrogenation in a material necessitates the use of a variety of methods that provide the capabilities for characterization of structure and bonding with distinct depth sensitivities. This study makes extensive use of Fourier Transform Infrared (FTIR) spectroscopy, x-ray diffraction (XRD), x-ray absorption spectroscopy (XAS), and soft x-r...
High-resolution X-ray spectroscopy has addressed not only various topics in coronal physics of stars, but has also uncovered important features relevant for our understanding of stellar evolution and the stellar environment. I summarize recent progress in coronal X-ray spectroscopy and in particular also discuss new results from studies of X-rays from pre-main sequence stars.
nanocrystals of zno were prepared by microwave irradiation using zn (ii) acetate and triethanol amin (tea) as the starting materials and water as solvent. the nanocrystals of zno with hexagonal (wurtzite) structure were characterized by x-ray powder diffraction (xrd), transmission electron microscopy (tem), scanning electron microscopy (sem), uv-vis absorption and ftir spectroscopy techniques.
in this paper, cuo nanoparticles have been synthesized via solid-state thermal decomposition using copper(ii) schiff base complexes as new precursors at 600ºc under air atmosphere for 3 h. surface morphology of the products were characterized by fourier transform infrared spectroscopy (ft-ir), x-ray diffraction (xrd) and scanning electron microscopy (sem).
the purpose of the current research is investigating the phenylalanine removal by using magnetic nanoparticles (fe3o4) from water samples. the effect of ph, contact time and phenylalanine concentration on phenylalanine adsorption efficiency by magnetite nanoparticles are studied in a batch system. transmission electron microscopy (tem), x-ray diffraction patterns (xrd) and fourier transform inf...
in this study a special type of silicoaluminophosphate with opal structure (opal-sapo) was prepared under microwave condition using tetraethylorthosilicate (teos), triethanolamine (tea), aluminiumisopropoxid and phosphoric acid 85%. the product was characterized by x-ray diffraction (xrd), thermogravimetric (tga) and fourier infrared spectroscopy (ftir).the crystalline product showed a good act...
cuins2 nanostructures were synthesized via a simple surfactant-free solvothermal route. in this synthesis, thiosemicarbazide and thioglycolic acid were used as sulfur sources. the effects of different parameters such as type of precursor and time on the morphology and particle size of the samples have been investigated. the nanostructures were characterized by means of ...
in the present work, we report a suitable approach for the preparation of batio3 nanostructures via the hydrothermal condition using dolapix et85 as surfactant. the powders were investigated by x-ray diffraction (xrd), scanning election microscopy (sem), energy-dispersive x-ray spectroscopy (edax), field emission transmission electron microscopy (fetem), selected area electron diffraction (saed...
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