Abstract
Hydrogen transfer of ketones, catalyzed by highly dispersed platinum nanoparticles supported on multi-walled carbon nanotubes (MWCNTs), was studied. Pt nanoparticles were deposited on gram quantities of non-functionalized MWCNTs by atomic layer deposition (ALD) at 300 C, using (methylcyclopentadienyl) trimethylplatinum and oxygen as precursors. TEM analysis showed that ~ 1.4 nm Pt nanoparticles were highly dispersed on MWCNTs. The heterogeneous hydrogen-transfer reactions of acetophenone indicated that an acetophenone conversion of 100% and a 1-phenylethanol selectivity of 99.0% could be obtained with a ketone to Pt mass ratio of 24,690 and a ketone to KOH mass ratio of 22 at 150 C for 5 h. The selectivity of the Pt/MWCNT catalyst was higher than that of the commercial Pt/C catalyst, due to the highly dispersed, uniform Pt nanoparticles and the unique porous structures of the Pt/MWCNT catalyst. The high stability of the Pt/MWCNT catalyst was demonstrated by reutilization of the catalyst. The high reactivity and selectivity of this catalyst for hydrogen transfer reduction were also demonstrated for other ketones. © 2013 Elsevier B.V.
Recommended Citation
C. Jiang and X. Liang, "Catalytic Hydrogen Transfer of Ketones over Atomic Layer Deposited Highly-dispersed Platinum Nanoparticles Supported on Multi-walled Carbon Nanotubes," Catalysis Communications, vol. 46, pp. 41 - 45, Elsevier, Feb 2014.
The definitive version is available at https://doi.org/10.1016/j.catcom.2013.11.002
Department(s)
Chemical and Biochemical Engineering
Keywords and Phrases
Atomic layer deposition (ALD); Catalytic hydrogen transfer; CNT; Ketones; Platinum (Pt)
International Standard Serial Number (ISSN)
1566-7367
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2024 Elsevier, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution 4.0 License.
Publication Date
10 Feb 2014
Comments
University of Missouri, Grant None