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Role of oxide support in Ni based catalysts for CO(2) methanation

The CO(2) methanation reaction of reduced and unreduced Ni based CeO(2), Al(2)O(3), TiO(2) and Y(2)O(3) supported catalysts was investigated. The Ni/CeO(2) and Ni/Y(2)O(3) catalysts exhibited similar CO(2) conversions at all reaction temperatures. The catalysts were studied by X-ray diffraction (XRD...

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Autores principales: Lee, Ye Hwan, Ahn, Jeong Yoon, Nguyen, Dinh Duc, Chang, Soon Woong, Kim, Sung Su, Lee, Sang Moon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9036400/
https://www.ncbi.nlm.nih.gov/pubmed/35480170
http://dx.doi.org/10.1039/d1ra02327f
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author Lee, Ye Hwan
Ahn, Jeong Yoon
Nguyen, Dinh Duc
Chang, Soon Woong
Kim, Sung Su
Lee, Sang Moon
author_facet Lee, Ye Hwan
Ahn, Jeong Yoon
Nguyen, Dinh Duc
Chang, Soon Woong
Kim, Sung Su
Lee, Sang Moon
author_sort Lee, Ye Hwan
collection PubMed
description The CO(2) methanation reaction of reduced and unreduced Ni based CeO(2), Al(2)O(3), TiO(2) and Y(2)O(3) supported catalysts was investigated. The Ni/CeO(2) and Ni/Y(2)O(3) catalysts exhibited similar CO(2) conversions at all reaction temperatures. The catalysts were studied by X-ray diffraction (XRD), H(2) chemisorption, H(2) temperature-programmed reduction (TPR), and in situ diffuse reflection infrared Fourier transform spectroscopy (DRIFTS); the results suggested that the reducibility of both metal and support at low temperature, strong metal support interaction and small Ni particle size are important factors for low-temperature CO(2) methanation. Based on the DRIFT studies, the difference in the CO(2) adsorption properties and reaction pathway depending on the reduced and unreduced Ni based supported catalysts was discussed.
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spelling pubmed-90364002022-04-26 Role of oxide support in Ni based catalysts for CO(2) methanation Lee, Ye Hwan Ahn, Jeong Yoon Nguyen, Dinh Duc Chang, Soon Woong Kim, Sung Su Lee, Sang Moon RSC Adv Chemistry The CO(2) methanation reaction of reduced and unreduced Ni based CeO(2), Al(2)O(3), TiO(2) and Y(2)O(3) supported catalysts was investigated. The Ni/CeO(2) and Ni/Y(2)O(3) catalysts exhibited similar CO(2) conversions at all reaction temperatures. The catalysts were studied by X-ray diffraction (XRD), H(2) chemisorption, H(2) temperature-programmed reduction (TPR), and in situ diffuse reflection infrared Fourier transform spectroscopy (DRIFTS); the results suggested that the reducibility of both metal and support at low temperature, strong metal support interaction and small Ni particle size are important factors for low-temperature CO(2) methanation. Based on the DRIFT studies, the difference in the CO(2) adsorption properties and reaction pathway depending on the reduced and unreduced Ni based supported catalysts was discussed. The Royal Society of Chemistry 2021-05-14 /pmc/articles/PMC9036400/ /pubmed/35480170 http://dx.doi.org/10.1039/d1ra02327f Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Lee, Ye Hwan
Ahn, Jeong Yoon
Nguyen, Dinh Duc
Chang, Soon Woong
Kim, Sung Su
Lee, Sang Moon
Role of oxide support in Ni based catalysts for CO(2) methanation
title Role of oxide support in Ni based catalysts for CO(2) methanation
title_full Role of oxide support in Ni based catalysts for CO(2) methanation
title_fullStr Role of oxide support in Ni based catalysts for CO(2) methanation
title_full_unstemmed Role of oxide support in Ni based catalysts for CO(2) methanation
title_short Role of oxide support in Ni based catalysts for CO(2) methanation
title_sort role of oxide support in ni based catalysts for co(2) methanation
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9036400/
https://www.ncbi.nlm.nih.gov/pubmed/35480170
http://dx.doi.org/10.1039/d1ra02327f
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