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Hydrothermal syntheses and effect factors of nickel phosphates with open-frameworks

  • Xiu Li Wang
  • , Qiu Ming Gao*
  • *Corresponding author for this work
  • CAS - Shanghai Institute of Ceramics
  • University of Chinese Academy of Sciences

Research output: Contribution to journalArticlepeer-review

Abstract

Under hydrothermal synthetic conditions and from 1NiCl2· 6H2O- mH3PO4- nNH4F- pNH3· H2O-40H2O (n = 0, 3) system, we synthesized five kinds of materials containing microporous VSB-1 and VSB-5 with 24 member rings, microporous sample A Ni12(HPO4)6 (PO4)2(OH)6 with 12 member rings, layered structural sample B NH4NiPO4·H2O, and microporous sample C(C2H10N2) [Ni(H2O)6](HPO4)2 with 8 member rings linked by hydrogen bonds. They were characterized by XRD, FT-IR and TG. The effect factors of raw materials, pH, Ni/P ratio, template agents, and mineralization agent on synthetic products were investigated. The phase maps were also provided. The effect factors of pH, Ni/P ratio, and mineralization agent play important roles in the synthetic processes. It is important that we synthesized VSB-1 without F ions.

Original languageEnglish
Pages (from-to)699-705
Number of pages7
JournalWuji Cailiao Xuebao/Journal of Inorganic Materials
Volume20
Issue number3
StatePublished - May 2005
Externally publishedYes

Keywords

  • Effect factors
  • Hydrothermal syntheses
  • Materials with open frameworks
  • Nickel phosphates

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