Controllable synthesis of hexagonal WO3 nanorod-cluster films with high electrochromic performance in NIR range

Reversible hydrogen spillover in Ru-WO3-x enhances hydrogen evolution activity in neutral pH water splitting

“…High-resolution TEM (HRTEM) image of a single nanowire gives a lattice spacing of 3.84 Å (Supplementary Fig. 3e ) 43 , 44 , which is attributed to the (002) facet of hexagonal WO 3 (JCPDS No. 85-2460).…”

“…2g ) 40 , 41 . Additionally, two more deconvoluted peaks at 34.53 eV and 36.63 eV can be assigned to W(V) 43 , 45 . Notably, a few hydrogen atoms may be induced in the surface of WO 3−x support in the H 2 /Ar reduction process and this may also lead to the appearance of W(V).…”

Review on recent progress in WO3-based electrochromic films: preparation methods and performance enhancement strategies

“…1D WO 3 nanostructures (such as nanowires, nanorods, nanotubes, and so on) with high porosity and length-diameter ratios are beneficial for transporting ions and electrons to enhance the EC properties. 28,[133][134][135][136][137] Heo et al 133 fabricated mesoporous thin films of different aspect ratios of WO 2.72 nanorods by a low-temperature and template-free method, as shown in Fig. 6a and b.…”

Palm Sugar-Induced Formation of Hexagonal Tungsten Oxide with Nanorod-Assembled Three-Dimensional Hierarchical Frameworks for Nitrogen Dioxide Sensing

“…20,21 To date, different hexagonal WO 3 nanostructures, such as nanorods and nanowires, have been obtained by combustion, 22 microwave, 23 sol-gel, 24 solid-phase sintering, 25 programmable and scalable carbonate-template methods, 26 and acid-and alkaline-assisted hydrothermal methods. 27,28 However, the use of biomass to direct the formation of hexagonal WO 3 has not yet been demonstrated, and the fabrication of 3D hierarchical hexagonal WO 3 nanostructures, which are assembled by one-dimensional (1D) nanostructures, has rarely been reported.…”

“…In comparison, orthorhombic WO 3 is found in the temperature range of 350–800 °C, while above 800 °C, WO 3 exhibits a tetragonal structure . Hexagonal WO 3 is typically obtained through the calcination of hexagonal tungsten bronze (HTB) with a general formula of A x WO 3 ( x ≈ 0.3), which is commonly achieved by alkaline metal doping. , To date, different hexagonal WO 3 nanostructures, such as nanorods and nanowires, have been obtained by combustion, microwave, sol-gel, solid-phase sintering, programmable and scalable carbonate-template methods, and acid- and alkaline-assisted hydrothermal methods. , However, the use of biomass to direct the formation of hexagonal WO 3 has not yet been demonstrated, and the fabrication of 3D hierarchical hexagonal WO 3 nanostructures, which are assembled by one-dimensional (1D) nanostructures, has rarely been reported.…”