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Low-Temperature Ammonia Synthesis on Iron Catalyst with an Electron Donor
[Image: see text] Haber–Bosch process produces ammonia to provide food for over 5 billion people; however, it is currently required to be produced without the use of fossil fuels to reduce global CO(2) emissions by 3% or more. It is indispensable to devise heterogeneous catalysts for the synthesis o...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10103163/ https://www.ncbi.nlm.nih.gov/pubmed/36996317 http://dx.doi.org/10.1021/jacs.2c13015 |
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author | Hattori, Masashi Okuyama, Natsuo Kurosawa, Hiyori Hara, Michikazu |
author_facet | Hattori, Masashi Okuyama, Natsuo Kurosawa, Hiyori Hara, Michikazu |
author_sort | Hattori, Masashi |
collection | PubMed |
description | [Image: see text] Haber–Bosch process produces ammonia to provide food for over 5 billion people; however, it is currently required to be produced without the use of fossil fuels to reduce global CO(2) emissions by 3% or more. It is indispensable to devise heterogeneous catalysts for the synthesis of ammonia below 100–150 °C to minimize the energy consumption of the process. In this paper, we report metallic iron particles with an electron-donating material as a catalyst for ammonia synthesis. Metallic iron particles combined with a mixture of BaO and BaH(2) species in an appropriate manner could catalyze ammonia synthesis even at 100 °C. The iron catalyst revealed that iron can exhibit a high turnover frequency (∼12 s(–1)), which is over an order of magnitude higher than those of other transition metals used in highly active catalysts for ammonia synthesis. This can be attributed to the intrinsic nature of iron to desorb adsorbed hydrogen atoms as hydrogen molecules at low temperatures. |
format | Online Article Text |
id | pubmed-10103163 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-101031632023-04-15 Low-Temperature Ammonia Synthesis on Iron Catalyst with an Electron Donor Hattori, Masashi Okuyama, Natsuo Kurosawa, Hiyori Hara, Michikazu J Am Chem Soc [Image: see text] Haber–Bosch process produces ammonia to provide food for over 5 billion people; however, it is currently required to be produced without the use of fossil fuels to reduce global CO(2) emissions by 3% or more. It is indispensable to devise heterogeneous catalysts for the synthesis of ammonia below 100–150 °C to minimize the energy consumption of the process. In this paper, we report metallic iron particles with an electron-donating material as a catalyst for ammonia synthesis. Metallic iron particles combined with a mixture of BaO and BaH(2) species in an appropriate manner could catalyze ammonia synthesis even at 100 °C. The iron catalyst revealed that iron can exhibit a high turnover frequency (∼12 s(–1)), which is over an order of magnitude higher than those of other transition metals used in highly active catalysts for ammonia synthesis. This can be attributed to the intrinsic nature of iron to desorb adsorbed hydrogen atoms as hydrogen molecules at low temperatures. American Chemical Society 2023-03-30 /pmc/articles/PMC10103163/ /pubmed/36996317 http://dx.doi.org/10.1021/jacs.2c13015 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Hattori, Masashi Okuyama, Natsuo Kurosawa, Hiyori Hara, Michikazu Low-Temperature Ammonia Synthesis on Iron Catalyst with an Electron Donor |
title | Low-Temperature Ammonia
Synthesis on Iron Catalyst
with an Electron Donor |
title_full | Low-Temperature Ammonia
Synthesis on Iron Catalyst
with an Electron Donor |
title_fullStr | Low-Temperature Ammonia
Synthesis on Iron Catalyst
with an Electron Donor |
title_full_unstemmed | Low-Temperature Ammonia
Synthesis on Iron Catalyst
with an Electron Donor |
title_short | Low-Temperature Ammonia
Synthesis on Iron Catalyst
with an Electron Donor |
title_sort | low-temperature ammonia
synthesis on iron catalyst
with an electron donor |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10103163/ https://www.ncbi.nlm.nih.gov/pubmed/36996317 http://dx.doi.org/10.1021/jacs.2c13015 |
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