TY - JOUR KW - Target KW - USA KW - Microstructure KW - Experimental KW - Characterization KW - Film KW - Films KW - Applications KW - Oxide KW - Time KW - X-Ray KW - Ca KW - Composition KW - Element KW - Metals KW - Microprobe KW - Elements KW - Oxides KW - Phase KW - Pulsed laser KW - Pulsed laser KW - Targets KW - Thermal KW - Fluorescence KW - Ha KW - Standard KW - Metal KW - D KW - Distribution KW - Trace KW - L KW - Pulsed laser deposition KW - Synthesis KW - Catalysis KW - Catalysts KW - Components KW - Contaminants KW - Fluorescence microprobe KW - Heterogeneous catalysis KW - Metal oxide KW - O thin-films KW - Oxide films KW - Oxide-films KW - Resolution KW - Spatial resolution KW - Synchrotron radiation KW - Synchrotron x-ray fluorescence KW - X-ray fluorescence KW - X-ray fluorescence microprobe KW - X-ray-fluorescence KW - Yba2cu3o7-x AU - Dale L Perry AU - Albert C Thompson AU - Richard E Russo AU - Xianglei Mao AU - Karen L Chapman AB -

A synchrotron X-ray fluorescence microprobe has been used to study the composition and microstructure of pulsed-laser ablation-deposited films of calcium-nickel-potassium oxides that have applications in heterogeneous catalysis. The films, whose individual metal oxide components have widely varying boiling points and thus prevent a solid-phase synthesis with the use of standard thermal techniques, represent a new quaternary metal oxide phase containing the three elements. Experimental conditions for preparing the films are given. The X-ray fluorescence microprobe data are discussed with respect to both the distribution of the three metals in the films at the micrometer lateral spatial resolution level and the presence of trace amounts of metals that were introduced into the films as contaminants in targets made of the parent three-metal oxide

AD -

Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

AN - 79 BT - Applied Spectroscopy C2 - LBNL-41165 DA - 06/1997 IS - 12 LA - eng LB - Laser N1 -

LBNL-41165 NOT IN FILE

N2 -

A synchrotron X-ray fluorescence microprobe has been used to study the composition and microstructure of pulsed-laser ablation-deposited films of calcium-nickel-potassium oxides that have applications in heterogeneous catalysis. The films, whose individual metal oxide components have widely varying boiling points and thus prevent a solid-phase synthesis with the use of standard thermal techniques, represent a new quaternary metal oxide phase containing the three elements. Experimental conditions for preparing the films are given. The X-ray fluorescence microprobe data are discussed with respect to both the distribution of the three metals in the films at the micrometer lateral spatial resolution level and the presence of trace amounts of metals that were introduced into the films as contaminants in targets made of the parent three-metal oxide

PY - 1997 SP - 1781 EP - 1783 T2 - Applied Spectroscopy TI - Characterization of quaternary metal oxide films by synchrotron X-ray fluorescence microprobe VL - 51 ER -