@article{oai:soar-ir.repo.nii.ac.jp:00012513,
 author = {Ono,  Takehiko and Utsumi,  Kazuya and Tsukamoto,  Satoshi and Tamaru,  Hiroyuki and Kataoka,  Masakazu and Noguchi,  Fumio},
 issue = {1-2},
 journal = {Journal of molecular catalysis. A, Chemical},
 month = {Mar},
 note = {γ(L)-Bi₂MoO₆ (L: low temperature phase) catalysts, whose surface compositions have a Mo/Bi ratio above = 0.5, exhibited high selectivity in the partial oxidation of C₃H₆, while catalysts with Mo/Bi surface ratios near or below = 0.5 exhibited low selectivity. γ(L)-phase catalysts which have Mo/Bi surface ratios greater than = 0.5, were demonstrated to form β-Bi₂Mo₂O₉ on their surface. An interaction between the β- and γ(L)-phases was observed in these catalysts’ UV–vis spectra at 430 nm. The new β-phase material seems to grow along b-axis of γ(L)-phase, i.e., perpendicular to MoO₂–Bi₂O₂ layers. Structure visualizations revealed that the α-Bi₂Mo₃O₁₂, β-, and γ(H)-phases, which are selective catalysts, contain twin Mo tetrahedral structures, and that their Mo and Bi ions lie on the same plane. The pure γ(L)-phase does not contain this structure. A model for the very rapid transfer of oxygen between the γ(L)- and β-phases is discussed in relation to the kinetics of C₃H₆ oxidation., Article, Journal of molecular catalysis. A, Chemical. 318(1-2):94-100 (2010)},
 pages = {94--100},
 title = {Roles of bulk γ(L)-Bi₂MoO₆ and surface β-Bi₂Mo₂O₉ in the selective catalytic oxidation of C₃H₆},
 volume = {318},
 year = {2010}
}