Journal
CHEMCATCHEM
Volume 6, Issue 1, Pages 353-360Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201300693
Keywords
embedding degree; hydrogenation; porous materials; ruthenium; nanoparticles
Categories
Funding
- Natural Science Foundation of China [20803064]
- Natural Science Foundation of Zhejiang Province [Y4090348]
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Uniform ruthenium nanoparticles (1-2nm) confined in ordered mesoporous carbon (Ru-OMC) with various embedding degrees have been fabricated by using a boric acid-assisted hard template method. The catalytic performance of Ru-OMC catalysts was determined through the hydrogenation of toluene at 110 degrees C and 4.0MPa. The effects of pore size and embedding degree on the catalytic performance were studied and compared with those of OMC-supported ruthenium (Ru/OMC) catalysts with various pore sizes. The catalytic activities of embedding Ru-OMC catalysts are much higher than those of supported Ru/OMC catalysts, which can be attributed to the strong interaction between ruthenium nanoparticles and the carbon support. Furthermore, the activities of Ru-OMC catalysts are closely related to the embedding degree of ruthenium nanoparticles in the carbon matrix. The Ru-OMC catalysts with an appropriate embedding degree affords a turnover frequency of up to 4.69s(-1) in toluene hydrogenation.
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