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Yttrium oxide nanopowder was successfully synthesized by two precipitation methods, through which Y2O3 nanopowder was prepared by ammonium hydroxide and ammonium hydrogen carbonate as precipitants. Hydroxide and carbonate precursors of Y2O3 with approximate composition of Y(OH)3 and Y2(CO3)3, respectively, were synthesized using yttrium nitrate as the starting salt. XRD results show cubic yttrium...
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