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Pd nanoparticles confined in mesoporous N-doped carbon silica supports: a synergistic effect between catalyst and support

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Abstract

Palladium nanoparticles of similar size were deposited on different supports, layers of carbon materials (with and without nitrogen doping) on the surface of a MCF (mesocellular foam) silica. For the generation of the N-doped carbon coatings, three different N sources were used to also investigate a possible influence of the N-doped carbon precursor and thus the structure of the N-doped carbons on their performance as catalyst support. These catalysts were tested for the Suzuki coupling and hydrogenation reactions. For the Suzuki reaction, the carbon coatings showed to increase dramatically the stability of the MCF material. Furthermore, when N-doped carbon coatings were applied, strong improvement of the stability of the catalysts was observed due to an enhanced interaction between metal nanoparticles and the support, preventing metal particle growth. In hydrogenation reactions, the presence of the N-doped carbon coating on the silica support increases the adsorption of aromatic compounds causing an enhancement of the catalytic activity of Pd NPs when compared to the non-doped supports.

Graphical abstract: Pd nanoparticles confined in mesoporous N-doped carbon silica supports: a synergistic effect between catalyst and support

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Supplementary files

Article information


Submitted
23 Sep 2019
Accepted
17 Jan 2020
First published
21 Jan 2020

This article is Open Access

Catal. Sci. Technol., 2020, Advance Article
Article type
Paper

Pd nanoparticles confined in mesoporous N-doped carbon silica supports: a synergistic effect between catalyst and support

R. L. Oliveira, J. Kerstien, R. Schomäcker and A. Thomas, Catal. Sci. Technol., 2020, Advance Article , DOI: 10.1039/C9CY01920K

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