Abstract
This work reports survey and core level x-ray photoemission spectra obtained from the surface of a barium carbonate powder. The high purity (99.997%) barium carbonate specimen was commercially obtained from Alfa/AESARS. The XPS spectra were acquired with a Kratos Axis 165 instrument using monochromatic Al Kα radiation. The survey spectrum was measured with an 80 eV pass energy and the core level spectra (Ba 3d, C 1s, and O 1s) were acquired using a 20 eV pass energy corresponding to analyzer resolutions of 1.12 and 0.28 eV, respectively. The data are consistent with the surface being exclusively barium carbonate. Adventitious carbon was the only contaminant observed.
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