High-Temperature Incommensurate-to-Commensurate Phase Transition in the Bi2MoO6 Catalyst

Synthesis and Monitoring of α‐Bi2Mo3O12 Catalyst Formation using Thermo‐Raman Spectroscopy

“…The importance of bismuth molybdates is not limited to catalysis since they also show interesting physical properties with potential technological applications. Vannier et al [6] reported Bi 26 Mo 10 O 69 as being the first unidimensional bismuth-based oxide ion conductor. Bismuth molybdates also show good optical quality with a wide transmission window between 0.415 and 5.2 µm.…”

“…[25] However, co-precipitation techniques result in co-precipitation of pure hydroxides and also precipitate bismuth with polymerized Mo ions. Solid-state reactions yield byproducts (phases) formed as a result of non-stoichiometric compositions, [26] and thus require several high-temperature calcination steps and regrinding to give a single, selective phase of the catalyst. Attempts to use mechanical mixtures have been made because of co-operative catalytic effects in multiphase systems where individual catalytic phases were prepared separately before mixing.…”

An X-ray diffraction study of pressure-induced phase transitions in Bi2MoO6

“…Bi 2 MoO 6 has three phases at ambient pressure [9][10][11][12]. The room temperature structure is Pca2 1 (often referred to in the nonstandard setting of P2 1 ab in order to conform with the convention for Aurivillius phase ferroelectrics of assigning the long axis as c, and the polar axis as a) [11].…”

Synthesis, crystal structure and pseudocapacitor electrode properties of γ-Bi2MoO6 nanoplates

“…Buttrey et al [31] concluded that the distinction between the γ(L)-and γ(I)-forms is primarily due to the presence or absence, respectively, of incommensurate in-plane modulations. [32][33][34].…”