H. Onoda, K. Taniguchi and I. Tanaka, “Additional Effects of Urea on Preparation and Acidic Properties of Lan- thanum Orthophosphate,” Microporous and Mesoporous Materials, Vol. 109, No. 1-3, 2008, pp. 193-198. doi:10.1016/j.micromeso.2007.04.043

has been cited by the following article:

• TITLE: Synthesis and Fluorescence Properties of Europium-Substituted Lanthanum Orthophosphate and Condensed Phosphates

  AUTHORS: Hiroaki Onoda, Takehiro Funamoto

  KEYWORDS: Condensed Phosphate; Europium; Fluorescence; Resistance against Hydrofluoric Acid

  JOURNAL NAME: Advances in Materials Physics and Chemistry, Vol.2 No.1, March 19, 2012

  ABSTRACT: Mixtures of lanthanum oxide, europium oxide, and phosphoric acid were heated with various ratios of P/(La + Eu) and Eu/(La + Eu). The obtained phosphates were estimated using XRD patterns, FT-IR spectra, and SEM images. The fluo-rescence spectra and resistance against hydrofluoric acid were estimated as functional properties of these phosphate materials. The condensed phosphates showed a strong peak at 615 nm and high resistance against hydrofluoric acid.