Chang, SY Choi, QW Choi, H Mho, SI Pyun, CH Kim, CH 2024-01-21T19:15:46Z 2024-01-21T19:15:46Z 2021-09-05 1996-09 0992-4361 https://pubs.kist.re.kr/handle/201004/144340 Reactions of yttrium oxide with sodium carbonate-sulfur flux are reinvestigated by IR spectroscopy, gas evolution analysis, XRD, and elemental analysis. Initially, the terminal bond of the polymeric sulfur is attacked by sodium carbonate to form sodium polysulfide with the evolution of CO2 and COS. Yttrium oxide reacts with CO2 forming yttrium oxycarbonate, which consecutively reacts with sulfur supplied by sodium polysulfide at high temperatures to give yttrium oxysulfide. The reaction of yttrium oxide with CO2 is a solid-gas reaction producing a porous layer. Thus the reaction rate is independent of the original particle size of yttrium oxide. English GAUTHIER-VILLARS Y2O2S-EU-3+ PHOSPHOR Sulfuration of yttrium oxide in a flux of sodium carbonate and sulfur: Reinvestigation Article 1 EUROPEAN JOURNAL OF SOLID STATE AND INORGANIC CHEMISTRY, v.33, no.11, pp.1123 - 1134 EUROPEAN JOURNAL OF SOLID STATE AND INORGANIC CHEMISTRY 33 11 1123 1134 scie scopus A1996WJ00900005 2-s2.0-0008182969 Chemistry, Inorganic & Nuclear Chemistry, Physical Chemistry Article Y2O2S-EU-3+ PHOSPHOR