Two step synthesis and characterization of thermally stable hexagonal zirconium phosphate

Wei Liu, Zhaoxia Song, Tasuku Ikegawa, Hiroyasu Nishiguchi, Tatsumi Ishihara, Yusaku Takita

研究成果: Contribution to journalArticle査読

9 被引用数 (Scopus)

抄録

Thermally stable hexagonal zirconium phosphate has been synthesized by a two-step method in which hexagonal zirconium sulfate surfactant composite is first produced by surfactant-assisted method and then subsequently treated in H3PO4 for long term. The 31P MAS NMR spectra show that the connectivity of phosphorus atoms increases from one ((Zr-O)PO 3) or two ((Zr-O)2PO2) to three ((Zr-O) 3PO) or four (P-O-P) upon calcination. There exists a significant number of surface Brönsted acid sites (Zr-O)3POH on calcined sample. The high thermal stability of hexagonal zirconium phosphate is due to (Zr-O)3PO and P-O-P connections, which build a network of zirconium phosphate.

本文言語英語
ページ(範囲)3328-3331
ページ数4
ジャーナルMaterials Letters
58
26
DOI
出版ステータス出版済み - 10 2004
外部発表はい

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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