Structural and Compositional Changes of Blue Orthorhombic Hydrogen Molybdenum Bronze, H0.30MoO3, by Vacuum Heating and Catalytic Activity for 1-Butene Isomerization

Article abstract of DOI:10.1246/bcsj.58.1626

Orthorhombic bronze, H_0.30MoO₃, was decomposed by vacuum heating to MoO_2.86 with a rhombic MoO3 structure.The surface area increased slightly with the increase in the rhombic structure in which vacancies were produced.An approximate linear relationship was found between the catalytic activity of 1-butene isomerization and the hydrogen content(x) in the samples which were treated in air at 65 deg C or in vacuo below 220 deg C.On the other hand, the activity above 220 deg C increased with the formation of vacancies.