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Chemical Reduction of Nd1.85Ce0.15CuO4−δPowders in Supercritical Sodium Ammonia Solutions
Advances in Condensed Matter Physics
Nd1.85Ce0.15CuO4−δpowders are chemically reduced in supercritical sodium ammonia solutions from room temperature to 350°C. The crystallographic structure of the reduced powders is investigated from Rietveld refinement of X-ray powder diffraction. The atomic positions are maintained constant within experimental errors while temperature factors of all atoms increase significantly after the chemical treatments, especially of Nd/Ce atoms. The ammonothermally reduced Nd1.85Ce0.15CuO4−δpowders showdoi:10.1155/2015/873972 fatcat:6y3c23i32ngq5gcvnffcttsul4