Title :
Synthesis and characterization of sodium tungsten bronze nanorods for electrochromic smart window applications
Author :
Tao Gao ; Jelle, Bjorn Petter ; Gustavsen, Arild
Author_Institution :
Dept. of Archit. Design, History & Technol., Norwegian Univ. of Sci. & Technol. (NTNU), Trondheim, Norway
Abstract :
Single-crystalline sodium tungsten bronze (Na-WO3) nanorods with typical diameters of 10-200 nm and lengths of several of microns were prepared via hydrothermal synthesis. X-ray diffraction data showed that the as-prepared Na-WO3 nanorods crystallize in a hexagonal structure (space group P6 / mmm) with unit cell parameters a = 7.3166(8) Å and c = 3.8990(8) Å, and elongate along the <;001> direction. The Na-WO3 nanorods had a mean chemical composition of Na0.18WO3.09·0.5H2O. The Na-WO3 nanorods exhibited a typical cathodic coloration related to proton insertion, indicating their potentials in electrochromic smart window applications.
Keywords :
X-ray diffraction; colour; electrochromism; lattice constants; nanofabrication; nanorods; sodium compounds; Na0.18WO3.09·0.5H2O; NaxWO3; X-ray diffraction; cathodic coloration; chemical composition; crystallization; electrochromic smart window applications; hexagonal structure; hydrothermal synthesis; nanorods; proton insertion; size 10 nm to 200 nm; sodium tungsten bronze; space group; unit cell parameters; Absorption; Buildings; Chemicals; Electrodes; Materials; Tungsten; X-ray diffraction;
Conference_Titel :
Nanotechnology (IEEE-NANO), 2013 13th IEEE Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-0675-8
DOI :
10.1109/NANO.2013.6720794
