期刊
CHEMISTRY-AN ASIAN JOURNAL
卷 13, 期 7, 页码 822-829出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201800112
关键词
carbon; catalyst support; hydrogenation; mesoporous materials; nanostructures
资金
- National Key Research and Development Program of China [2016YFB0701103]
- National Natural Science Foundation of China [21671067, 21471058]
- ShuGuang Program by Shanghai Education Development Foundation
- Shanghai Municipal Education Commission [15SG21]
Traditional hard-template methods for the preparation of mesoporous carbon structures have been well developed, but there are difficulties associated with complete filling of the organic precursors in ordered mesochannels and exact replication of the templates. Herein, mesoporous carbon nanorods (meso-CNRs) were synthesized through thermal condensation of furfuryl alcohol followed by the nano-confined decomposition of polyfurfuryl alcohol in silica nanotubes (SiO2 NTs) with porous shells. Limited and slow release of gaseous water through the porous shells and finite polyfurfuryl precursor inside silica nanotubes are responsible for the formation of the mesoporous structures. Nitrogen can be doped into the meso-CNRs by adding guanidine hydrochloride to the precursors. The nitrogen dopant not only stabilizes the ultrasmall and active Pd nanocatalyst in the meso-CNRs but also increases the electron density of Pd and accelerates the dissociation of H-2, both of which increase the catalytic activity of the Pd catalyst in hydrogenation reactions.
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