title: Synthesis of WO(3) nanoparticles using a biopolymer as a template for electrocatalytic hydrogen evolution.
abstract: Tungsten trioxide nanoparticles were prepared by a simple approach using chitosan biopolymer as a template. These nanoparticles were characterized using x-ray diffraction, Raman spectroscopy, transmission electron microscopy and high resolution transmission electron microscopy. The average size of the WO(3) nanoparticles is 42 nm, and they intercalate a larger amount of hydrogen than tungsten trioxide, which is prepared without chitosan. The materials are tested for their electrocatalytic hydrogen evolution in a sulfuric acid medium, where WO(3) nanoparticles show a fourfold higher activity than bulk tungsten trioxide.
authors.affiliation: Department of Chemistry and Kanbar Laboratory for Nanomaterials at the Bar-Ilan University Center for Advanced Materials and Nanotechnology, Bar-Ilan University, Ramat-Gan 52900, Israel.
authors.forename: Raman
authors.initials: R
authors.lastname: Ganesan
authors.forename: Aharon
authors.initials: A
authors.lastname: Gedanken