TY - JOUR
T1 - (NH4)AgMoS4
T2 - Synthesis, structure and catalytic activity
AU - Shafaei-Fallah, Maryam
AU - Malliakas, Christos D.
AU - Kanatzidis, Mercouri G.
N1 - Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2012/12
Y1 - 2012/12
N2 - 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.
AB - 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.
KW - Alcohol synthesis
KW - Heterogeneous catalysis
KW - Syngas conversion
KW - Thiomolybdates
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U2 - 10.1002/zaac.201200309
DO - 10.1002/zaac.201200309
M3 - Article
AN - SCOPUS:84872874343
SN - 0044-2313
VL - 638
SP - 2594
EP - 2597
JO - Zeitschrift fur Anorganische und Allgemeine Chemie
JF - Zeitschrift fur Anorganische und Allgemeine Chemie
IS - 15
ER -