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Intermetallic nickel silicide nanocatalyst—A non-noble metal–based general hydrogenation catalyst
Hydrogenation reactions are essential processes in the chemical industry, giving access to a variety of valuable compounds including fine chemicals, agrochemicals, and pharmachemicals. On an industrial scale, hydrogenations are typically performed with precious metal catalysts or with base metal cat...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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American Association for the Advancement of Science
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5993471/ https://www.ncbi.nlm.nih.gov/pubmed/29888329 http://dx.doi.org/10.1126/sciadv.aat0761 |
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author | Ryabchuk, Pavel Agostini, Giovanni Pohl, Marga-Martina Lund, Henrik Agapova, Anastasiya Junge, Henrik Junge, Kathrin Beller, Matthias |
author_facet | Ryabchuk, Pavel Agostini, Giovanni Pohl, Marga-Martina Lund, Henrik Agapova, Anastasiya Junge, Henrik Junge, Kathrin Beller, Matthias |
author_sort | Ryabchuk, Pavel |
collection | PubMed |
description | Hydrogenation reactions are essential processes in the chemical industry, giving access to a variety of valuable compounds including fine chemicals, agrochemicals, and pharmachemicals. On an industrial scale, hydrogenations are typically performed with precious metal catalysts or with base metal catalysts, such as Raney nickel, which requires special handling due to its pyrophoric nature. We report a stable and highly active intermetallic nickel silicide catalyst that can be used for hydrogenations of a wide range of unsaturated compounds. The catalyst is prepared via a straightforward procedure using SiO(2) as the silicon atom source. The process involves thermal reduction of Si–O bonds in the presence of Ni nanoparticles at temperatures below 1000°C. The presence of silicon as a secondary component in the nickel metal lattice plays the key role in its properties and is of crucial importance for improved catalytic activity. This novel catalyst allows for efficient reduction of nitroarenes, carbonyls, nitriles, N-containing heterocycles, and unsaturated carbon–carbon bonds. Moreover, the reported catalyst can be used for oxidation reactions in the presence of molecular oxygen and is capable of promoting acceptorless dehydrogenation of unsaturated N-containing heterocycles, opening avenues for H(2) storage in organic compounds. The generality of the nickel silicide catalyst is demonstrated in the hydrogenation of over a hundred of structurally diverse unsaturated compounds. The wide application scope and high catalytic activity of this novel catalyst make it a nice alternative to known general hydrogenation catalysts, such as Raney nickel and noble metal–based catalysts. |
format | Online Article Text |
id | pubmed-5993471 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-59934712018-06-10 Intermetallic nickel silicide nanocatalyst—A non-noble metal–based general hydrogenation catalyst Ryabchuk, Pavel Agostini, Giovanni Pohl, Marga-Martina Lund, Henrik Agapova, Anastasiya Junge, Henrik Junge, Kathrin Beller, Matthias Sci Adv Research Articles Hydrogenation reactions are essential processes in the chemical industry, giving access to a variety of valuable compounds including fine chemicals, agrochemicals, and pharmachemicals. On an industrial scale, hydrogenations are typically performed with precious metal catalysts or with base metal catalysts, such as Raney nickel, which requires special handling due to its pyrophoric nature. We report a stable and highly active intermetallic nickel silicide catalyst that can be used for hydrogenations of a wide range of unsaturated compounds. The catalyst is prepared via a straightforward procedure using SiO(2) as the silicon atom source. The process involves thermal reduction of Si–O bonds in the presence of Ni nanoparticles at temperatures below 1000°C. The presence of silicon as a secondary component in the nickel metal lattice plays the key role in its properties and is of crucial importance for improved catalytic activity. This novel catalyst allows for efficient reduction of nitroarenes, carbonyls, nitriles, N-containing heterocycles, and unsaturated carbon–carbon bonds. Moreover, the reported catalyst can be used for oxidation reactions in the presence of molecular oxygen and is capable of promoting acceptorless dehydrogenation of unsaturated N-containing heterocycles, opening avenues for H(2) storage in organic compounds. The generality of the nickel silicide catalyst is demonstrated in the hydrogenation of over a hundred of structurally diverse unsaturated compounds. The wide application scope and high catalytic activity of this novel catalyst make it a nice alternative to known general hydrogenation catalysts, such as Raney nickel and noble metal–based catalysts. American Association for the Advancement of Science 2018-06-08 /pmc/articles/PMC5993471/ /pubmed/29888329 http://dx.doi.org/10.1126/sciadv.aat0761 Text en Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Research Articles Ryabchuk, Pavel Agostini, Giovanni Pohl, Marga-Martina Lund, Henrik Agapova, Anastasiya Junge, Henrik Junge, Kathrin Beller, Matthias Intermetallic nickel silicide nanocatalyst—A non-noble metal–based general hydrogenation catalyst |
title | Intermetallic nickel silicide nanocatalyst—A non-noble metal–based general hydrogenation catalyst |
title_full | Intermetallic nickel silicide nanocatalyst—A non-noble metal–based general hydrogenation catalyst |
title_fullStr | Intermetallic nickel silicide nanocatalyst—A non-noble metal–based general hydrogenation catalyst |
title_full_unstemmed | Intermetallic nickel silicide nanocatalyst—A non-noble metal–based general hydrogenation catalyst |
title_short | Intermetallic nickel silicide nanocatalyst—A non-noble metal–based general hydrogenation catalyst |
title_sort | intermetallic nickel silicide nanocatalyst—a non-noble metal–based general hydrogenation catalyst |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5993471/ https://www.ncbi.nlm.nih.gov/pubmed/29888329 http://dx.doi.org/10.1126/sciadv.aat0761 |
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