Micro and nanostructures of molybdenum trioxide (VI)

Abstract

The hydrothermal treatment of molybdenum oxide in alkaline medium leads to micro and nano-fibers products among which bundles to nanofibers with dimensions in the range to 4 -5 µm length and 200 -700 nm wide are found. The microcrystalline product corresponds to a laminar phase with interlaminar spaces smaller than both its intermediate precursor and the pristine MoO 3 . Comparison of the X-ray diffraction patterns and vibrational spectra of the pristine phase, intermediate and final products indicates a mechanism in which tubular species would be formed by the transformation under hydrothermal conditions of an intermediate state produced by a relative displacement of the laminas in the pristine a-MoO 3 .

X‐ray Powder Diffraction Study of Molybdenum Oxides Formed From the Thermal Reactions of MoS2, MoS2/LiF, and MoS2/Ag in Air

“…This shows the negative effects in developing new electrode materials for lithium storage, such as significant volume changes. To achieve optimal electrochemical properties of electrode materials during lithiation and delithiation, an ion diffusion pathway with a large surface area and short length is required 13–17 . Therefore, new preparation methods for preparation of α‐MoO 3 and lithiated MoO 3 should be developed by reacting with lamellar and reactive precursor, such as MoS 2 .…”