نتایج جستجو برای: ray photoelectron spectrum
تعداد نتایج: 517380 فیلتر نتایج به سال:
Development of efficient electrocatalysts for oxygen reduction reaction (ORR) is one of the most important issues for optimizing the performance of fuel cells and metal-air batteries. The introduction of nitrogen into carbon nanostructures has created new pathways for the development of non-precious electrocatalysts in fuel cells. In this work, nitrogen-doped graphene (NG) was synthesized by a ...
We have determined the Ti and O components of the rutile TiO2 valence band using the method of site-specific x-ray photoelectron spectroscopy. Comparisons with calculations based on pseudopotentials within the local density approximation reveal the hybridization of the Ti 3d, 4s, and 4p states, and the O 2s and 2p states on each site. These chemical effects are observed due to the large differe...
Multiple scattering theory based on a cluster model is used to simulate full-hemispherical X-ray photoelectron diffraction measure ments in order to verify how state of the art multiple scattering simulations are able to reproduce the experiment. This approach applied to the Cu(111) surface for two different photoelectron kinetic energies. Differences and similarities between single and multip ...
The first Web-based version of the NIST X-ray Photoelectron Spectroscopy Database (XPSDB) is described. The current database, built from a relational database management system (RDBMS), contains critically evaluated data with over 19,000 line positions, chemical shifts, doublet splittings, and energy separations of photoelectron and Auger-electron lines. It is available free of charge to the pu...
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