Nano- and microscale engineering of the molybdenum disulfide-based catalysts for syngas to ethanol conversion

Konarova, Muxina, Tang, Fengqiu, Chen, Jiuling, Wang, Geoff, Rudolph, Victor and Beltramini, Jorge (2014) Nano- and microscale engineering of the molybdenum disulfide-based catalysts for syngas to ethanol conversion. ChemCatChem, 6 8: 2394-2402. doi:10.1002/cctc.201402067


Author Konarova, Muxina
Tang, Fengqiu
Chen, Jiuling
Wang, Geoff
Rudolph, Victor
Beltramini, Jorge
Title Nano- and microscale engineering of the molybdenum disulfide-based catalysts for syngas to ethanol conversion
Journal name ChemCatChem   Check publisher's open access policy
ISSN 1867-3899
Publication date 2014-08-01
Year available 2014
Sub-type Article (original research)
DOI 10.1002/cctc.201402067
Volume 6
Issue 8
Start page 2394
End page 2402
Total pages 9
Place of publication Weinheim, Germany
Publisher Wiley
Collection year 2015
Language eng
Formatted abstract
Nickel-promoted MoS2, unsupported catalysts and laponite-supported alcohol synthesis catalysts were synthesised by using microemulsion (ME) and hydrothermal (HT) methods. Highly ordered sulfide slabs, consisting of up to seven layers, were visible in the TEM images of HT-based NiMoS2 catalysts. In contrast, disordered sulfide layers were identified in ME-based NiMoS2 catalysts. High catalytic activity was observed in ME-based supported (laponite-supported NiMoS2) and unsupported catalysts. After the CO hydrogenation reaction, the catalysts were characterised by X-ray photoelectron spectroscopy and inductively coupled plasma-mass spectrometry elemental analyses, which detected a significant sulfur loss in ME-based NiMoS2 catalysts and minor sulfur loss in HT-based NiMoS2 catalysts. In addition to the large surface area (120 m2g-1), disordered sulfide structure, and exposed active sites, ME-based NiMoS2 catalysts demonstrated higher alcohol selectivity (61 mol%) than HT-based NiMoS2 catalysts (15 mol%). Correlations between the catalyst morphology, surface active components, and alcohol selectivity are discussed herein.
Keyword Hydrothermal synthesis
Microemulsions
Molybdenum
Nanotechnology
Sulfur
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2015 Collection
 
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