(NH4)AgMoS4: Synthesis, structure and catalytic activity

Maryam Shafaei-Fallah, Christos D. Malliakas, Mercouri G. Kanatzidis

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The synthesis, characterization and crystal structure of (NH 4)AgMoS4 is presented. (NH4)AgMoS4 was prepared by the stoichiometric reaction of AgNO3 with (NH 4)2MoS4. The black microcrystalline (NH 4)AgMoS4 is thermally unstable and contaminated by a phase that analyzes for Ag2MoS4. In the TGA continuous weight loss was observed corresponding to the loss of ammonia gas subsequent loss of sulfur and H2S to give Ag2S and MoS2. In the infrared spectrum of (NH4)AgMoS4, characteristic bands for the ammonium ion at 1350-1400 cm-1 and for the [MoS 4]2- group at 460 cm-1 are observed. Crystals of (NH4)AgMoS4 were investigated using a synchroton source. (NH4)AgMoS4 is isostructural to (NH 4)CuMoS4 and crystallizes in the tetragonal space group I4 (Z = 2, a = 7.8740(3), c = 5.7733(4) Å). (NH4)AgMoS 4 can be used as a catalyst in the syngas conversion to higher alcohols with showing good activity and ethanol selectivity.

Original languageEnglish
Pages (from-to)2594-2597
Number of pages4
JournalZeitschrift fur Anorganische und Allgemeine Chemie
Volume638
Issue number15
DOIs
Publication statusPublished - Dec 1 2012

Keywords

  • Alcohol synthesis
  • Heterogeneous catalysis
  • Syngas conversion
  • Thiomolybdates

ASJC Scopus subject areas

  • Inorganic Chemistry

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