Formation of hexagonal MoO3 upon the decomposition of silica-supported ammonium paramolybdate |
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| Authors: | I P Olenkova D V Tarasova G N Kustova G I Aleshina and E L Mikhailenko |
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| Institution: | (1) Institute of Catalysis, Novosibirsk, USSR |
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| Abstract: | Upon the decomposition of silica-supported ammonium paramolybdate, hexagonal MoO3 is formed at 300–350 °C. Irreversible transformation of hexagonal to rhombic MoO3 is observed with increasing calcination temperature. The hexagonal MoO3 structure is probably stabilized by the insertion of ammonium and silicon ions into the lattice of molybdenum trioxide.
                  ,    ,   300–359 °C     .   MoO3   .  MoO3, , MoO3.
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