Design, characterization and evaluation of Ce-modified cobalt catalysts supported on alpha alumina in the abatement of methane emissions from natural gas engines.

This work deals with the optimisation of Ce-promoted Co3O4 catalysts supported on alpha alumina for the oxidation of traces amounts of methane. Ten Co-Ce samples were synthesised by incipient wetness coimpregnation with the aim of analysing the influence of the Ce/Co molar ratio and the Co3O4 loadin...

Full description

Bibliographic Details
Authors: Choya Atencia, Andoni, Gudyka, Sylwia, De Rivas Martín, Beatriz, Gutiérrez Ortiz, José Ignacio, Kotarba, Andrzej, López Fonseca, Rubén
Format: article
Publication Date:2021
Country:España
Institution:Universidad del País Vasco
Repository:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/63970
Online Access:http://hdl.handle.net/10810/63970
Access Level:Open access
Keyword:lean methane oxidation
natural gas vehicles
ce-promoted cobalt catalysts
alpha alumina
lattice oxygen
id ES_77669cad33d8b6698b8ab74c26fb1321
oai_identifier_str oai:addi.ehu.eus:10810/63970
network_acronym_str ES
network_name_str España
repository_id_str
spelling Design, characterization and evaluation of Ce-modified cobalt catalysts supported on alpha alumina in the abatement of methane emissions from natural gas engines.Choya Atencia, AndoniGudyka, SylwiaDe Rivas Martín, BeatrizGutiérrez Ortiz, José IgnacioKotarba, AndrzejLópez Fonseca, Rubénlean methane oxidationnatural gas vehiclesce-promoted cobalt catalystsalpha aluminalattice oxygenThis work deals with the optimisation of Ce-promoted Co3O4 catalysts supported on alpha alumina for the oxidation of traces amounts of methane. Ten Co-Ce samples were synthesised by incipient wetness coimpregnation with the aim of analysing the influence of the Ce/Co molar ratio and the Co3O4 loading on the physico-chemical properties and resultant catalytic behaviour. Textural, structural, morphological and redox properties along with bulk/surface composition were thoroughly characterised. Lattice distortion provoked by insertion of controlled amounts of Ce increased the abundance of Co3+ and improved consequently the redox properties and the mobility of lattice oxygen species of the Co-Ce catalysts. Analysis of kinetic data in the 200 600 ◦C temperature range evidenced that the optimal catalyst formulation was 10 %Co3O4wt. with a Ce/Co molar ratio of 0.05. In addition, this sample showed a reasonable stability with time on stream under cycled dry/humid conditions.Spanish ministries of Economy and Competitiveness (CTQ2016-80253-R AEI/FEDER, UE); Science and Innovation (PID2019-107105RB-I00 AEI/FEDER, UE); Basque Government (IT1297-19) and the University of the Basque Country UPV/EHU (PIF15/335)Elsevier202420242021info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/63970reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/MINECO/CTQ2016-80253-R/info:eu-repo/grantAgreement/MICINN/PID2019-107105RB-I00/https://doi.org/10.1016/j.apcata.2021.118105info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/3.0/es/© 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).oai:addi.ehu.eus:10810/639702026-06-18T09:23:17Z
dc.title.none.fl_str_mv Design, characterization and evaluation of Ce-modified cobalt catalysts supported on alpha alumina in the abatement of methane emissions from natural gas engines.
title Design, characterization and evaluation of Ce-modified cobalt catalysts supported on alpha alumina in the abatement of methane emissions from natural gas engines.
spellingShingle Design, characterization and evaluation of Ce-modified cobalt catalysts supported on alpha alumina in the abatement of methane emissions from natural gas engines.
Choya Atencia, Andoni
lean methane oxidation
natural gas vehicles
ce-promoted cobalt catalysts
alpha alumina
lattice oxygen
title_short Design, characterization and evaluation of Ce-modified cobalt catalysts supported on alpha alumina in the abatement of methane emissions from natural gas engines.
title_full Design, characterization and evaluation of Ce-modified cobalt catalysts supported on alpha alumina in the abatement of methane emissions from natural gas engines.
title_fullStr Design, characterization and evaluation of Ce-modified cobalt catalysts supported on alpha alumina in the abatement of methane emissions from natural gas engines.
title_full_unstemmed Design, characterization and evaluation of Ce-modified cobalt catalysts supported on alpha alumina in the abatement of methane emissions from natural gas engines.
title_sort Design, characterization and evaluation of Ce-modified cobalt catalysts supported on alpha alumina in the abatement of methane emissions from natural gas engines.
dc.creator.none.fl_str_mv Choya Atencia, Andoni
Gudyka, Sylwia
De Rivas Martín, Beatriz
Gutiérrez Ortiz, José Ignacio
Kotarba, Andrzej
López Fonseca, Rubén
author Choya Atencia, Andoni
author_facet Choya Atencia, Andoni
Gudyka, Sylwia
De Rivas Martín, Beatriz
Gutiérrez Ortiz, José Ignacio
Kotarba, Andrzej
López Fonseca, Rubén
author_role author
author2 Gudyka, Sylwia
De Rivas Martín, Beatriz
Gutiérrez Ortiz, José Ignacio
Kotarba, Andrzej
López Fonseca, Rubén
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv lean methane oxidation
natural gas vehicles
ce-promoted cobalt catalysts
alpha alumina
lattice oxygen
topic lean methane oxidation
natural gas vehicles
ce-promoted cobalt catalysts
alpha alumina
lattice oxygen
description This work deals with the optimisation of Ce-promoted Co3O4 catalysts supported on alpha alumina for the oxidation of traces amounts of methane. Ten Co-Ce samples were synthesised by incipient wetness coimpregnation with the aim of analysing the influence of the Ce/Co molar ratio and the Co3O4 loading on the physico-chemical properties and resultant catalytic behaviour. Textural, structural, morphological and redox properties along with bulk/surface composition were thoroughly characterised. Lattice distortion provoked by insertion of controlled amounts of Ce increased the abundance of Co3+ and improved consequently the redox properties and the mobility of lattice oxygen species of the Co-Ce catalysts. Analysis of kinetic data in the 200 600 ◦C temperature range evidenced that the optimal catalyst formulation was 10 %Co3O4wt. with a Ce/Co molar ratio of 0.05. In addition, this sample showed a reasonable stability with time on stream under cycled dry/humid conditions.
publishDate 2021
dc.date.none.fl_str_mv 2021
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/63970
url http://hdl.handle.net/10810/63970
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MINECO/CTQ2016-80253-R/
info:eu-repo/grantAgreement/MICINN/PID2019-107105RB-I00/
https://doi.org/10.1016/j.apcata.2021.118105
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411119980871680
score 15,301603

Similar Items