Facile self-assembly and stabilization of metal oxide nanoparticles

Aqueous Synthesis and Visible‐Light Photochromism of Metastable h‐WO3 Hierarchical Nanostructures

“…For WO-1 and WO-2 with WO 4 2-/ H + ratios of 1:2 and 1:2.25, all the X-ray diffraction peaks in the two patterns ( Figure 1, a,b) can be indexed to purephase h-WO 3 crystals (designated with "") in the 2θ range of 10 to 80°. Short ribbonlike nanostructures can also be seen among the nanorods, which was proposed to be orthorhombic WO 3 ·0.33H 2 The crystal evolution of WO 3 in our experiments can be explained according to theories on polymorphic systems. Their unit-cell parameters were calculated to be a = 7.3001 Å, c = 3.8980 Å for WO-1 and a = 7.3284 Å, c = 3.8910 Å for WO-2 by using Jade 5.0 software on the basis of the data of Figure 1 (a,b).…”

“…[1,2] Tungsten oxide (WO 3 ), especially metastable hexagonal WO 3 (h-WO 3 ), has received particular attention for its promising applications in electrochromic and photochromic devices, secondary batteries, and photocatalysts. [1,2] Tungsten oxide (WO 3 ), especially metastable hexagonal WO 3 (h-WO 3 ), has received particular attention for its promising applications in electrochromic and photochromic devices, secondary batteries, and photocatalysts.…”

Studies of inherent lubricity coatings for low surface roughness galvanised steel for automotive applications

“…Assuming 10 mg of coated P25 TiO 2 , the acetone‐washed loadings correspond to 2.1, 12.4 and 15.6 μmoles of C8 , C12 or C18 . Given that P25 has a surface area of approximately 50 m 2 g −1 , a 10 mg sample has a surface area of 0.5 m 2 . The cross‐sectional area of C18 has been reported to be 20.7 Å 2 .…”

“…We have chosen to use study the addition of a TiO 2 layer onto the galvanised substrate because carboxylic acids have been observed to chemisorb as monolayers onto metal oxide surfaces (e.g. TiO 2 ) through ester linkages in a similar way to that used in dye‐sensitised solar cells …”

Enhanced dielectric and electrorheological properties of needle‐like TiO2/polyrhodanine core/shell hybrid nanostructure

“…However, these nanoparticles often have a tendency to agglomerate which limits both their size‐related advantageous and the ability to assemble them into a chosen structural arrangement under various external stimulus, such as magnetic and/or electric field strengths, which greatly influence the dispersions’ magnetorheological and/or electrorheological behavior . To try to minimize these shortcomings, nanoparticles are usually surface functionalized to improve handling which involves bottom‐up surface engineering approach to form core/shell structures by covering the surfaces of TiO 2 particles by long‐chain organic molecules, such as polyrhodanine …”