2024-03-28T10:02:30Z
https://soar-ir.repo.nii.ac.jp/oai
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2022-12-14T04:03:27Z
1309:1310
Nanostructured RuO2 on MWCNTs: Efficient catalyst for transfer hydrogenation of carbonyl compounds and aerial oxidation of alcohols
Gopiraman, M
Babu, S. Ganesh
Karvembu, R
Kim, I.S.
MWCNTs
RuO2 nanostructures
Dry synthesis
Heterogeneous catalyst
Transfer hydrogenation
Aerial oxidation
Multiwall carbon nanotubes (MWCNTs)/ruthenium dioxide nanoparticles (RuO2NPs) composite was prepared by a straightforward ‘dry synthesis’ method. After being well characterized, the prepared composite was used as a nanocatalyst (RuO2/MWCNT) for the transfer hydrogenation of carbonyl compounds. The excellent adhesion of RuO2NPs on the anchoring sites of MWCNTs was confirmed by TEM and Raman analyses. The weight percentage (7.97 wt%) and the chemical state (+4) of Ru in RuO2/MWCNT was confirmed by EDS and XPS analyses, respectively. It was found that the RuO2/MWCNT has a higher specific surface area of 189.3 m2 g?1. Initially the reaction conditions were optimized and then the scope of the catalytic system was extended with a wide range of carbonyl compounds. The influence of the size of RuO2NPs on the transfer hydrogenation of carbonyl compounds was also studied. The RuO2/MWCNT is highly chemoselective, heterogeneous in nature, reusable and highly stable. Owing to the high stability of the used catalyst (u-RuO2/MWCNT), it was further calcinated at high temperature to obtain RuO2 nanorods (NRs) hybrid MWCNTs. Then the hybrid material was used as a catalyst (r-RuO2/MWCNT) for the aerial oxidation of alcohols and the result was found to be good.
Article
Applied Catalysis A. 484(22):84-96 (2014)
journal article
ELSEVIER
2014-08
application/pdf
Applied Catalysis A
22
484
84
96
0926-860X
AA10821202
https://soar-ir.repo.nii.ac.jp/record/13313/files/140_Nanostructured_RuO2_MWCNTs_Efficient_catalyst.pdf
eng
10.1016/j.apcata.2014.06.032
https://doi.org/10.1016/j.apcata.2014.06.032
Copyright© 2014 Elsevier B.V.