title: Metastable tetragonal phase CdWO4 nanoparticles synthesized with a solvothermal method.
abstract: CdWO4 has only previously been reported in the monoclinic, or wolframite, phase. Here we report the first metastable, tetragonal or scheelite, CdWO4 nanopowder. The tetragonal CdWO4 was synthesized by a propylene glycol solvothermal method. The scheelite phase is stabilized by a combination of high surface area and surface complexation by the propylene glycol. The CdWO4 is stable at 1 bar to 300 degrees C, and converts back to the monoclinic wolframite phase between 300 and 500 degrees C. The nanopowder exhibits cubic morphology and the average particle size of the nanopowder is around 50 nm.
authors.affiliation: Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA. rondinoneaj@ornl.gov
authors.forename: Adam J
authors.initials: AJ
authors.lastname: Rondinone
authors.forename: Michelle
authors.initials: M
authors.lastname: Pawel
authors.forename: Dustin
authors.initials: D
authors.lastname: Travaglini
authors.forename: Shannon
authors.initials: S
authors.lastname: Mahurin
authors.forename: Sheng
authors.initials: S
authors.lastname: Dai