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Dehydrogenation of Ethylene on Supported Palladium Nanoparticles: A Double View from Metal and Hydrocarbon Sides
Adsorption of ethylene on palladium, a key step in various catalytic reactions, may result in a variety of surface-adsorbed species and formation of palladium carbides, especially under industrially relevant pressures and temperatures. Therefore, the application of both surface and bulk sensitive te...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7560039/ https://www.ncbi.nlm.nih.gov/pubmed/32825750 http://dx.doi.org/10.3390/nano10091643 |
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author | Usoltsev, Oleg A. Pnevskaya, Anna Yu. Kamyshova, Elizaveta G. Tereshchenko, Andrei A. Skorynina, Alina A. Zhang, Wei Yao, Tao Bugaev, Aram L. Soldatov, Alexander V. |
author_facet | Usoltsev, Oleg A. Pnevskaya, Anna Yu. Kamyshova, Elizaveta G. Tereshchenko, Andrei A. Skorynina, Alina A. Zhang, Wei Yao, Tao Bugaev, Aram L. Soldatov, Alexander V. |
author_sort | Usoltsev, Oleg A. |
collection | PubMed |
description | Adsorption of ethylene on palladium, a key step in various catalytic reactions, may result in a variety of surface-adsorbed species and formation of palladium carbides, especially under industrially relevant pressures and temperatures. Therefore, the application of both surface and bulk sensitive techniques under reaction conditions is important for a comprehensive understanding of ethylene interaction with Pd-catalyst. In this work, we apply in situ X-ray absorption spectroscopy, X-ray diffraction and infrared spectroscopy to follow the evolution of the bulk and surface structure of an industrial catalysts consisting of 2.6 nm supported palladium nanoparticles upon exposure to ethylene under atmospheric pressure at 50 °C. Experimental results were complemented by ab initio simulations of atomic structure, X-ray absorption spectra and vibrational spectra. The adsorbed ethylene was shown to dehydrogenate to C(2)H(3), C(2)H(2) and C(2)H species, and to finally decompose to palladium carbide. Thus, this study reveals the evolution pathway of ethylene on industrial Pd-catalyst under atmospheric pressure at moderate temperatures, and provides a conceptual framework for the experimental and theoretical investigation of palladium-based systems, in which both surface and bulk structures exhibit a dynamic nature under reaction conditions. |
format | Online Article Text |
id | pubmed-7560039 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-75600392020-10-22 Dehydrogenation of Ethylene on Supported Palladium Nanoparticles: A Double View from Metal and Hydrocarbon Sides Usoltsev, Oleg A. Pnevskaya, Anna Yu. Kamyshova, Elizaveta G. Tereshchenko, Andrei A. Skorynina, Alina A. Zhang, Wei Yao, Tao Bugaev, Aram L. Soldatov, Alexander V. Nanomaterials (Basel) Article Adsorption of ethylene on palladium, a key step in various catalytic reactions, may result in a variety of surface-adsorbed species and formation of palladium carbides, especially under industrially relevant pressures and temperatures. Therefore, the application of both surface and bulk sensitive techniques under reaction conditions is important for a comprehensive understanding of ethylene interaction with Pd-catalyst. In this work, we apply in situ X-ray absorption spectroscopy, X-ray diffraction and infrared spectroscopy to follow the evolution of the bulk and surface structure of an industrial catalysts consisting of 2.6 nm supported palladium nanoparticles upon exposure to ethylene under atmospheric pressure at 50 °C. Experimental results were complemented by ab initio simulations of atomic structure, X-ray absorption spectra and vibrational spectra. The adsorbed ethylene was shown to dehydrogenate to C(2)H(3), C(2)H(2) and C(2)H species, and to finally decompose to palladium carbide. Thus, this study reveals the evolution pathway of ethylene on industrial Pd-catalyst under atmospheric pressure at moderate temperatures, and provides a conceptual framework for the experimental and theoretical investigation of palladium-based systems, in which both surface and bulk structures exhibit a dynamic nature under reaction conditions. MDPI 2020-08-21 /pmc/articles/PMC7560039/ /pubmed/32825750 http://dx.doi.org/10.3390/nano10091643 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Usoltsev, Oleg A. Pnevskaya, Anna Yu. Kamyshova, Elizaveta G. Tereshchenko, Andrei A. Skorynina, Alina A. Zhang, Wei Yao, Tao Bugaev, Aram L. Soldatov, Alexander V. Dehydrogenation of Ethylene on Supported Palladium Nanoparticles: A Double View from Metal and Hydrocarbon Sides |
title | Dehydrogenation of Ethylene on Supported Palladium Nanoparticles: A Double View from Metal and Hydrocarbon Sides |
title_full | Dehydrogenation of Ethylene on Supported Palladium Nanoparticles: A Double View from Metal and Hydrocarbon Sides |
title_fullStr | Dehydrogenation of Ethylene on Supported Palladium Nanoparticles: A Double View from Metal and Hydrocarbon Sides |
title_full_unstemmed | Dehydrogenation of Ethylene on Supported Palladium Nanoparticles: A Double View from Metal and Hydrocarbon Sides |
title_short | Dehydrogenation of Ethylene on Supported Palladium Nanoparticles: A Double View from Metal and Hydrocarbon Sides |
title_sort | dehydrogenation of ethylene on supported palladium nanoparticles: a double view from metal and hydrocarbon sides |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7560039/ https://www.ncbi.nlm.nih.gov/pubmed/32825750 http://dx.doi.org/10.3390/nano10091643 |
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