Ce alpha Mn1-alpha O2 CATALYSTS SUPPORTED OVER gamma-Al2O3 PREPARED BY MODIFIED REDOX-COPRECIPITATION METHODS FOR n-HEXANE COMBUSTION
Descripción del Articulo
A series of Ce alpha Mn1-alpha O2 catalysts supported on gamma-alumina with various molar concentrations of Ce (alpha, from 0 to 0.90) was synthesized by coprecipitation, applying two different precipitating agents, namely, sodium hydroxide (method 1) and sodium carbonate (method 2), with the use of...
| Autores: | , , , |
|---|---|
| Formato: | artículo |
| Fecha de Publicación: | 2020 |
| Institución: | Consejo Nacional de Ciencia Tecnología e Innovación |
| Repositorio: | CONCYTEC-Institucional |
| Lenguaje: | inglés |
| OAI Identifier: | oai:repositorio.concytec.gob.pe:20.500.12390/2876 |
| Enlace del recurso: | https://hdl.handle.net/20.500.12390/2876 https://doi.org/10.21577/0100-4042.20170507 |
| Nivel de acceso: | acceso abierto |
| Materia: | General Chemistry http://purl.org/pe-repo/ocde/ford#2.04.01 |
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CONC_d131e9b2ba536b9af3e9f6a6b020a17d |
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oai:repositorio.concytec.gob.pe:20.500.12390/2876 |
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CONC |
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CONCYTEC-Institucional |
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4689 |
| dc.title.none.fl_str_mv |
Ce alpha Mn1-alpha O2 CATALYSTS SUPPORTED OVER gamma-Al2O3 PREPARED BY MODIFIED REDOX-COPRECIPITATION METHODS FOR n-HEXANE COMBUSTION |
| title |
Ce alpha Mn1-alpha O2 CATALYSTS SUPPORTED OVER gamma-Al2O3 PREPARED BY MODIFIED REDOX-COPRECIPITATION METHODS FOR n-HEXANE COMBUSTION |
| spellingShingle |
Ce alpha Mn1-alpha O2 CATALYSTS SUPPORTED OVER gamma-Al2O3 PREPARED BY MODIFIED REDOX-COPRECIPITATION METHODS FOR n-HEXANE COMBUSTION Rojas Quispe, Jesus General Chemistry http://purl.org/pe-repo/ocde/ford#2.04.01 |
| title_short |
Ce alpha Mn1-alpha O2 CATALYSTS SUPPORTED OVER gamma-Al2O3 PREPARED BY MODIFIED REDOX-COPRECIPITATION METHODS FOR n-HEXANE COMBUSTION |
| title_full |
Ce alpha Mn1-alpha O2 CATALYSTS SUPPORTED OVER gamma-Al2O3 PREPARED BY MODIFIED REDOX-COPRECIPITATION METHODS FOR n-HEXANE COMBUSTION |
| title_fullStr |
Ce alpha Mn1-alpha O2 CATALYSTS SUPPORTED OVER gamma-Al2O3 PREPARED BY MODIFIED REDOX-COPRECIPITATION METHODS FOR n-HEXANE COMBUSTION |
| title_full_unstemmed |
Ce alpha Mn1-alpha O2 CATALYSTS SUPPORTED OVER gamma-Al2O3 PREPARED BY MODIFIED REDOX-COPRECIPITATION METHODS FOR n-HEXANE COMBUSTION |
| title_sort |
Ce alpha Mn1-alpha O2 CATALYSTS SUPPORTED OVER gamma-Al2O3 PREPARED BY MODIFIED REDOX-COPRECIPITATION METHODS FOR n-HEXANE COMBUSTION |
| author |
Rojas Quispe, Jesus |
| author_facet |
Rojas Quispe, Jesus Cruz, Romulo Sun Kou, Rosario Picasso, Gino |
| author_role |
author |
| author2 |
Cruz, Romulo Sun Kou, Rosario Picasso, Gino |
| author2_role |
author author author |
| dc.contributor.author.fl_str_mv |
Rojas Quispe, Jesus Cruz, Romulo Sun Kou, Rosario Picasso, Gino |
| dc.subject.none.fl_str_mv |
General Chemistry |
| topic |
General Chemistry http://purl.org/pe-repo/ocde/ford#2.04.01 |
| dc.subject.ocde.none.fl_str_mv |
http://purl.org/pe-repo/ocde/ford#2.04.01 |
| description |
A series of Ce alpha Mn1-alpha O2 catalysts supported on gamma-alumina with various molar concentrations of Ce (alpha, from 0 to 0.90) was synthesized by coprecipitation, applying two different precipitating agents, namely, sodium hydroxide (method 1) and sodium carbonate (method 2), with the use of sodium permanganate as a redox agent for precipitation. XRD profiles of the supported samples revealed the predominant abundance of a typical fluorite crystalline structure. TPR thermograms of supported samples were displaced towards lower temperatures with increasing Mn concentration, in contrast with the bulk samples. The supported Ce-Mn samples exhibited a greater performance in n-hexane elimination than did the corresponding simple oxides. The sample Ce0.33M O-0.67(2) obtained by method 2 presented the best activity, probably due to the enrichment of Ce4+, Mn3+ and Mn4+ surface species, an excess of superficial oxygen species and an easy reducibility as well as the lowest apparent activation energy. |
| publishDate |
2020 |
| dc.date.accessioned.none.fl_str_mv |
2024-05-30T23:13:38Z |
| dc.date.available.none.fl_str_mv |
2024-05-30T23:13:38Z |
| dc.date.issued.fl_str_mv |
2020 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.uri.none.fl_str_mv |
https://hdl.handle.net/20.500.12390/2876 |
| dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.21577/0100-4042.20170507 |
| url |
https://hdl.handle.net/20.500.12390/2876 https://doi.org/10.21577/0100-4042.20170507 |
| dc.language.iso.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.ispartof.none.fl_str_mv |
QUIMICA NOVA |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Quimica (SBQ) |
| publisher.none.fl_str_mv |
Sociedade Brasileira de Quimica (SBQ) |
| dc.source.none.fl_str_mv |
reponame:CONCYTEC-Institucional instname:Consejo Nacional de Ciencia Tecnología e Innovación instacron:CONCYTEC |
| instname_str |
Consejo Nacional de Ciencia Tecnología e Innovación |
| instacron_str |
CONCYTEC |
| institution |
CONCYTEC |
| reponame_str |
CONCYTEC-Institucional |
| collection |
CONCYTEC-Institucional |
| repository.name.fl_str_mv |
Repositorio Institucional CONCYTEC |
| repository.mail.fl_str_mv |
repositorio@concytec.gob.pe |
| _version_ |
1844883093145518080 |
| spelling |
Publicationrp08006600rp08007600rp08008600rp02154600Rojas Quispe, JesusCruz, RomuloSun Kou, RosarioPicasso, Gino2024-05-30T23:13:38Z2024-05-30T23:13:38Z2020https://hdl.handle.net/20.500.12390/2876https://doi.org/10.21577/0100-4042.20170507A series of Ce alpha Mn1-alpha O2 catalysts supported on gamma-alumina with various molar concentrations of Ce (alpha, from 0 to 0.90) was synthesized by coprecipitation, applying two different precipitating agents, namely, sodium hydroxide (method 1) and sodium carbonate (method 2), with the use of sodium permanganate as a redox agent for precipitation. XRD profiles of the supported samples revealed the predominant abundance of a typical fluorite crystalline structure. TPR thermograms of supported samples were displaced towards lower temperatures with increasing Mn concentration, in contrast with the bulk samples. The supported Ce-Mn samples exhibited a greater performance in n-hexane elimination than did the corresponding simple oxides. The sample Ce0.33M O-0.67(2) obtained by method 2 presented the best activity, probably due to the enrichment of Ce4+, Mn3+ and Mn4+ surface species, an excess of superficial oxygen species and an easy reducibility as well as the lowest apparent activation energy.Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - ConcytecengSociedade Brasileira de Quimica (SBQ)QUIMICA NOVAinfo:eu-repo/semantics/openAccessGeneral Chemistryhttp://purl.org/pe-repo/ocde/ford#2.04.01-1Ce alpha Mn1-alpha O2 CATALYSTS SUPPORTED OVER gamma-Al2O3 PREPARED BY MODIFIED REDOX-COPRECIPITATION METHODS FOR n-HEXANE COMBUSTIONinfo:eu-repo/semantics/articlereponame:CONCYTEC-Institucionalinstname:Consejo Nacional de Ciencia Tecnología e Innovacióninstacron:CONCYTEC#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#20.500.12390/2876oai:repositorio.concytec.gob.pe:20.500.12390/28762024-05-30 15:42:42.837http://purl.org/coar/access_right/c_14cbinfo:eu-repo/semantics/closedAccessmetadata only accesshttps://repositorio.concytec.gob.peRepositorio Institucional CONCYTECrepositorio@concytec.gob.pe#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#<Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="4c07a5f7-be32-4e3a-8dd9-52cc6bd0b750"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Ce alpha Mn1-alpha O2 CATALYSTS SUPPORTED OVER gamma-Al2O3 PREPARED BY MODIFIED REDOX-COPRECIPITATION METHODS FOR n-HEXANE COMBUSTION</Title> <PublishedIn> <Publication> <Title>QUIMICA NOVA</Title> </Publication> </PublishedIn> <PublicationDate>2020</PublicationDate> <DOI>https://doi.org/10.21577/0100-4042.20170507</DOI> <Authors> <Author> <DisplayName>Rojas Quispe, Jesus</DisplayName> <Person id="rp08006" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Cruz, Romulo</DisplayName> <Person id="rp08007" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Sun Kou, Rosario</DisplayName> <Person id="rp08008" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Picasso, Gino</DisplayName> <Person id="rp02154" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Sociedade Brasileira de Quimica (SBQ)</DisplayName> <OrgUnit /> </Publisher> </Publishers> <Keyword>General Chemistry</Keyword> <Abstract>A series of Ce alpha Mn1-alpha O2 catalysts supported on gamma-alumina with various molar concentrations of Ce (alpha, from 0 to 0.90) was synthesized by coprecipitation, applying two different precipitating agents, namely, sodium hydroxide (method 1) and sodium carbonate (method 2), with the use of sodium permanganate as a redox agent for precipitation. XRD profiles of the supported samples revealed the predominant abundance of a typical fluorite crystalline structure. TPR thermograms of supported samples were displaced towards lower temperatures with increasing Mn concentration, in contrast with the bulk samples. The supported Ce-Mn samples exhibited a greater performance in n-hexane elimination than did the corresponding simple oxides. The sample Ce0.33M O-0.67(2) obtained by method 2 presented the best activity, probably due to the enrichment of Ce4+, Mn3+ and Mn4+ surface species, an excess of superficial oxygen species and an easy reducibility as well as the lowest apparent activation energy.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication> -1 |
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13.466479 |
Nota importante:
La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).
La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).
