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Surface chemical characterization and surface diffraction effects of real margarite (001): An angle-resolved XPS investigation
surface of natural pure margarite angle-resolved XPS investigation real margarite (001)
2012/3/31
The (001) surface of natural pure margarite was chemically characterized by angle-resolved X-
ray photoelectron spectroscopy (ARXPS). The extreme surface sensitivity of ARXPS permits con-
cluding th...
Interpretation of XPS Mn(2p) spectra of Mn oxyhydroxides and constraints on the mechanism of MnO2 precipitation
Interpretation XPS Mn(2p) spectra Mn oxyhydroxides MnO2 precipitation
2012/3/31
Calculated Mn(2p3/2) X-ray photoelectron spectra (XPS) of Mn21,Mn31, and Mn41 free ions are strikingly similar to Mn(2p3/2) spectra of Mn21-, Mn31-, and Mn41
-oxides and oxyhydroxides, indicating tha...
Surface structural controls on pyrite oxidation kinetics: An XPS-UPS, STM, and modeling study
controls pyrite oxidation kinetics XPS-UPS STM modeling study
2012/4/6
X-ray and ultraviolet photoelectron spectroscopy (XPS and UPS,respectively) and scan-ning tunneling microscopy (STM) were used to observe the initial oxidation of pyrite surfaces in air. The results s...
XPS and LEED study of a single-crystal surface of pyrite
XPS LEED study single-crystal surface pyrite
2012/4/5
This .work reports X-ray photoelectron spectroscopy (XPS) and low-energy electron dlffractlOn}~EED) results for an as-grown (100) s~rface of pyrite (FeS2) cleaned by low-energy H:lOn bombardment and t...
Natural and Synthetic Copper Phyllosilicates Studied by XPS
Chrysocolla Cu ESCA Kaolinite Smectite XPS
2011/12/31
X-ray photoelectron spectroscopy (XPS) has been used to characterize the bonding state of Cu2+, Si4+, Al3+, and O2- ions in structural (octahedral and interlamellar) or adsorbed position in phyllosili...
Exchange and Selective Surface Uptake of Cations by Layered Silicates Using X-ray Photoelectron Spectroscopy (XPS)
Beidellite Cation Exchange Surface Exchange X-ray Photoelectron Spectroscopy
2012/2/10
The cation-exchange capacities (CEC) of a previously well-characterized beidellite have been estimated nondestructively from X-ray photoelectron spectroscopy (XPS) data following exchange by various c...