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Estudo do biomaterial Ti-6Al-4V empregando-se técnicas eletroquímicas e XPS
(Sociedade Brasileira de Química, 2002-02-01)
The Ti-6Al-4V alloy used as biomaterial has been used over the last years. The literature shows controversies concerning the kind and the chemical composition of the film naturally and elctrochemically formed on the surface ...
XPS study of the corrosion protection of fluorozirconate glasses dip-coated with SnO2 transparent thin films
(Springer, 2004-10-01)
Tin oxide nanoparticles prepared by an aqueous sol-gel method were deposited by dip-coating on fluorozirconate glass, ZBLAN (53%ZrF4-20%BaF2-4%LaF3-3%AlF3-20%NaF) to improve its resistance against wet corrosion. The aqueous ...
XPS direct analysis on shale rocks: Correlation with kerogen type and maturity
(Elsevier, 2019-12)
A method to study kerogen type and maturity of organic matter in source rocks using XPS was developed. Samples from three Argentinian shale rocks containing different kerogen types were analyzed by XPS directly, without ...
Characterization of metal-biomass interactions in the lanthanum(III) biosorption on Sargassum sp using SEM/EDX, FTIR, and XPS: Preliminary studies
(Elsevier B.V., 2014-03-01)
This work investigates the mechanisms involved in the biosorption of lanthanum (La(III)) on Sargassum sp. biomass using scanning electron microscopy (SEM), SEM coupled to energy dispersive X-ray spectroscopy (SEM/EDX), ...
Characterization of fossil remains using XRF, XPS and XAFS spectroscopies
(IOP Publishing, 2016-08)
Synchrotron radiation micro-X-Ray Fluorescence (m-XRF), X-ray photoelectron (XPS) and X-ray Absorption Fine Structure (XAFS) spectroscopies are applied for the study of paleontological findings. More specifically the costal ...
SEM/EDX and XPS studies of niobium after electropolishing
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
The studies of niobium after electrochemical polishing EP in sulfuric-methanesulfonic acid mixture were performed. The NbOx/Nb surface was studied by SEM/EDX and XPS methods to find out the chemical composition of the ...
Photo-induced effects in Ge25Ga10S65 glasses studied by XPS and XAS
(Elsevier B.V., 2005-05-12)
The present paper focuses on the structural, electronic, and compositional properties of Ge25Ga10S65 glasses before and after UV illumination in air using X-ray photoelectron spectroscopy (XPS) and X-ray absorption ...
Photo-induced effects in Ge25Ga10S65 glasses studied by XPS and XAS
(Elsevier B.V., 2005-05-12)
The present paper focuses on the structural, electronic, and compositional properties of Ge25Ga10S65 glasses before and after UV illumination in air using X-ray photoelectron spectroscopy (XPS) and X-ray absorption ...
Pr3+ surface fraction in CePr mixed oxides determined by XPS analysis
(Elsevier Science, 2018-01)
CePr mixed oxides were previously studied as supports for Water Gas Shift catalysts, considering their promising textural and redox properties arising from the presence of a non-stoichiometric oxide. A very small Ce3+ ...