Thermally reduced ruthenium nanoparticles as a highly active heterogeneous catalyst for hydrogenation of monoaromatics

Su, Fabing, Lv, Lu, Lee, Fang Yin, Liu, Tao, Cooper, Andrew I. and Zhao, X. S. (2007) Thermally reduced ruthenium nanoparticles as a highly active heterogeneous catalyst for hydrogenation of monoaromatics. Journal of the American Chemical Society, 129 46: 14213-14223. doi:10.1021/ja072697v


Author Su, Fabing
Lv, Lu
Lee, Fang Yin
Liu, Tao
Cooper, Andrew I.
Zhao, X. S.
Title Thermally reduced ruthenium nanoparticles as a highly active heterogeneous catalyst for hydrogenation of monoaromatics
Journal name Journal of the American Chemical Society   Check publisher's open access policy
ISSN 0002-7863
Publication date 2007-11-01
Year available 2007
Sub-type Article (original research)
DOI 10.1021/ja072697v
Open Access Status DOI
Volume 129
Issue 46
Start page 14213
End page 14223
Total pages 11
Place of publication Washington, DC United States
Publisher American Chemical Society
Language eng
Formatted abstract
We report here a thermal reduction method for preparing Ru catalysts supported on a carbon substrate. Mesoporous SBA-15 silica, surface-carbon-coated SBA-15, templated mesoporous carbon, activated carbon, and carbon black with different pore structures and compositions were employed as catalyst supports to explore the versatility of the thermal reduction method. Nitrogen adsorption, X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, scanning transmission electron microscopy, thermogravimetric analysis, and X-ray absorption near-edge structure techniques were used to characterize the samples. It was observed that carbon species that could thermally reduce Ru species at high temperatures played a vital role in the reduction process. Ru nanoparticles supported on various carbon-based substrates exhibited good dispersion with an appropriate particle size, high crystallinity, strong resistance against oxidative atmosphere, less leaching, lack of aggregation, and avoidance of pore blocking. As such, these catalysts display a remarkably high catalytic activity and stability in the hydrogenation of benzene and toluene (up to 3-24-fold compared with Ru catalysts prepared by traditional methods). It is believed that the excellent catalytic performance of the thermally reduced Ru nanoparticles is related to the intimate interfacial contact between the Ru nanoparticles and the carbon support. © 2007 American Chemical Society.
Keyword Ordered Mesoporous Carbon
Supported Ru Catalysts
Oxygen-Reduction
Platinum Nanoparticles
Ammonia-Synthesis
Selective Hydrogenation
Aromatic-Hydrocarbons
Benzene Hydrogenation
Fuel-Cells
Spillover
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

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