Highly dispersed Pd nanoparticles supported by magnetically separable Fe 3 O 4 @ SiO 2 nanotube for catalytic hydrogenation of nitroaromatics
Selective hydrogenation of nitroaromatics is a crucial industrial reaction, but there are still challenges in developing nanocatalysts with stable active centers, yet easily recyclable characteristics. Here, a magnetically separable Pd/Fe O @SiO nanocatalyst was prepared through the seeding growth o...
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Published in | Journal of colloid and interface science Vol. 676; p. 763 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
United States
15.12.2024
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Subjects | |
Online Access | Get full text |
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Summary: | Selective hydrogenation of nitroaromatics is a crucial industrial reaction, but there are still challenges in developing nanocatalysts with stable active centers, yet easily recyclable characteristics. Here, a magnetically separable Pd/Fe
O
@SiO
nanocatalyst was prepared through the seeding growth of silica on the Fe
O
nanocrystal cluster (NC) followed by in situ reduction of Pd nanoparticles (NPs) on the amino group modified Fe
O
@SiO
nannotube (NT). The nanocatalyst showed good activity and stability in the hydrogenation of a series of nitroaromatics as the Pd NPs were highly dispersed on the nanotubes. Meanwhile, it could be easily separated from the reaction solution and well-redispersed in the solvent for the next-round reaction due to the superparamagnetic property of the Fe
O
NC and the good dispersibility of silica in many organic solvents. The magnetically separable nanocatalyst combined the high activity of the nanocatalyst and the convenient separation of a traditional heterogeneous catalyst, which effectively promote the practical application of nanomaterials in catalysis. |
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ISSN: | 1095-7103 |