Self-assembly of highly oriented one-dimensional h-WO3 nanostructures

Abstract

A new self-assembled and highly oriented one-dimensional single-crystal nanostructure of WO3 with hexagonal form was successfully prepared by a mild, solution-based colloidal approach.

Fabrication of hexagonal/cubic tungsten oxide homojunction with improved photocatalytic activity

“…In general, the stable phases of tungsten oxide at ambient temperature are monoclinic and orthorhombic. To maintain the stability of hexagonal and cubic tungsten oxide, some impurities, such as some resident ions or/and molecules, are considered as requisite in the lattice channel to prevent thermodynamic transformation from the metastable phases to stable monoclinic phases [30][31][32][33][34]. Szilagyi et al noted that the Na + cation in the lattice channel is necessary to stabilize the crystal structure of WO 3 ·nH 2 O during a common hydrothermal preparation process [35].…”

CTAB-assisted hydrothermal synthesis of tungsten oxide microflowers

“…Presently, many chemists and materials scientists are paying close attention to the study of nanostructured oxides -including zero-dimensional (0D) quantum dots, one-dimensional (1D) nanowires and nanorods, and two-dimensional (2D) nanosheets and nanodisks -because these materials have novel physical and chemical properties which are different from their corresponding bulks [1][2][3]. Among the different oxides with nanostructures, tungsten oxide (WO 3 ) has received wide attention owing to its unique photochromic and electrochromic properties.…”

A Simple Hydrothermal Method for the Large‐Scale Synthesis of Single‐Crystal Potassium Tungsten Bronze Nanowires

“…Recently we have obtained 1D nanostructures for the hexagonal phase of WO 3 by hydrothermal treatment of the WO 3 (sol) in the presence of Li 2 SO 4 . [21] Thus, it was anticipated that the various reduced 1D tungsten bronzes could be obtained by adding an appropriate mild reducing agent and various sulfates under similar hydrothermal conditions.…”