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Three-dimensionally ordered macroporous PrOx: An improved alternative to ceria catalysts for soot combustion
[Display omitted] A novel three dimensionally ordered macroporous PrOx catalyst, which outperforms the activity of Ceria, has been prepared and tested for soot combustion. This novel catalyst combines high active oxygen production with enhanced transfer of such active oxygen to soot due to the impro...
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Published in: | Applied catalysis. B, Environmental Environmental, 2019-07, Vol.248, p.567-572 |
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container_title | Applied catalysis. B, Environmental |
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creator | Alcalde-Santiago, Virginia Bailón-García, Esther Davó-Quiñonero, Arantxa Lozano-Castelló, Dolores Bueno-López, Agustín |
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A novel three dimensionally ordered macroporous PrOx catalyst, which outperforms the activity of Ceria, has been prepared and tested for soot combustion. This novel catalyst combines high active oxygen production with enhanced transfer of such active oxygen to soot due to the improved solid-solid soot-catalyst contact.
•A novel three dimensionally ordered macroporous (3DOM) PrOx catalyst was prepared.•The soot combustion activity of 3DOM PrOx was compared with 3DOM Ceria and conventional (Ref) catalyst.•3DOM PrOx is more active for soot combustion than 3DOM ceria.•PrOx is more easily reducible than CeO2 and 3DOM structure favours that reducibility.•PrOx presents higher ability to oxidize NO to NO2 than CeO2 improving the activity.
The synthesis and use for soot combustion of praseodymium oxide with three-dimensionally ordered macroporous (3DOM) structure is described. This novel PrOx-3DOM catalyst is presented as an improved noble-metal-free alternative to CeO2 as soot combustion catalyst. The PrOx-3DOM catalyst presents a defined 3DOM structure with high macropores volume, which significantly enhances the solid-solid soot-catalyst contact. This enhanced contact, together with the improved reducibility of PrOx regarding CeO2, ameliorate the active oxygen production and its transfer to soot particles, improving the soot combustion with O2. In addition, the higher ability of PrOx to oxidize NO to NO2, improves the soot combustion in a higher extent than CeO2 in presence of NOx. The catalytic activity of PrOx-3DOM after several soot combustion cycles is also confirmed. |
doi_str_mv | 10.1016/j.apcatb.2018.10.049 |
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A novel three dimensionally ordered macroporous PrOx catalyst, which outperforms the activity of Ceria, has been prepared and tested for soot combustion. This novel catalyst combines high active oxygen production with enhanced transfer of such active oxygen to soot due to the improved solid-solid soot-catalyst contact.
•A novel three dimensionally ordered macroporous (3DOM) PrOx catalyst was prepared.•The soot combustion activity of 3DOM PrOx was compared with 3DOM Ceria and conventional (Ref) catalyst.•3DOM PrOx is more active for soot combustion than 3DOM ceria.•PrOx is more easily reducible than CeO2 and 3DOM structure favours that reducibility.•PrOx presents higher ability to oxidize NO to NO2 than CeO2 improving the activity.
The synthesis and use for soot combustion of praseodymium oxide with three-dimensionally ordered macroporous (3DOM) structure is described. This novel PrOx-3DOM catalyst is presented as an improved noble-metal-free alternative to CeO2 as soot combustion catalyst. The PrOx-3DOM catalyst presents a defined 3DOM structure with high macropores volume, which significantly enhances the solid-solid soot-catalyst contact. This enhanced contact, together with the improved reducibility of PrOx regarding CeO2, ameliorate the active oxygen production and its transfer to soot particles, improving the soot combustion with O2. In addition, the higher ability of PrOx to oxidize NO to NO2, improves the soot combustion in a higher extent than CeO2 in presence of NOx. The catalytic activity of PrOx-3DOM after several soot combustion cycles is also confirmed.</description><identifier>ISSN: 0926-3373</identifier><identifier>EISSN: 1873-3883</identifier><identifier>DOI: 10.1016/j.apcatb.2018.10.049</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>3DOM ; Catalysis ; Catalysts ; Catalytic activity ; Ceria ; Cerium oxides ; Chemical synthesis ; Combustion ; Nitrogen dioxide ; Nitrogen oxides ; Noble metals ; NOx ; Oxygen production ; Praseodymia ; Praseodymium ; Praseodymium oxide ; Soot</subject><ispartof>Applied catalysis. B, Environmental, 2019-07, Vol.248, p.567-572</ispartof><rights>2018</rights><rights>Copyright Elsevier BV Jul 5, 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c380t-95019331160000b3f54047e21c6dd10ad4074ad8dbd8bf8241657e7a99aaefde3</citedby><cites>FETCH-LOGICAL-c380t-95019331160000b3f54047e21c6dd10ad4074ad8dbd8bf8241657e7a99aaefde3</cites><orcidid>0000-0002-5434-6459 ; 0000-0001-8418-8714 ; 0000-0001-9776-3458</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,783,787,27938,27939</link.rule.ids></links><search><creatorcontrib>Alcalde-Santiago, Virginia</creatorcontrib><creatorcontrib>Bailón-García, Esther</creatorcontrib><creatorcontrib>Davó-Quiñonero, Arantxa</creatorcontrib><creatorcontrib>Lozano-Castelló, Dolores</creatorcontrib><creatorcontrib>Bueno-López, Agustín</creatorcontrib><title>Three-dimensionally ordered macroporous PrOx: An improved alternative to ceria catalysts for soot combustion</title><title>Applied catalysis. B, Environmental</title><description>[Display omitted]
A novel three dimensionally ordered macroporous PrOx catalyst, which outperforms the activity of Ceria, has been prepared and tested for soot combustion. This novel catalyst combines high active oxygen production with enhanced transfer of such active oxygen to soot due to the improved solid-solid soot-catalyst contact.
•A novel three dimensionally ordered macroporous (3DOM) PrOx catalyst was prepared.•The soot combustion activity of 3DOM PrOx was compared with 3DOM Ceria and conventional (Ref) catalyst.•3DOM PrOx is more active for soot combustion than 3DOM ceria.•PrOx is more easily reducible than CeO2 and 3DOM structure favours that reducibility.•PrOx presents higher ability to oxidize NO to NO2 than CeO2 improving the activity.
The synthesis and use for soot combustion of praseodymium oxide with three-dimensionally ordered macroporous (3DOM) structure is described. This novel PrOx-3DOM catalyst is presented as an improved noble-metal-free alternative to CeO2 as soot combustion catalyst. The PrOx-3DOM catalyst presents a defined 3DOM structure with high macropores volume, which significantly enhances the solid-solid soot-catalyst contact. This enhanced contact, together with the improved reducibility of PrOx regarding CeO2, ameliorate the active oxygen production and its transfer to soot particles, improving the soot combustion with O2. In addition, the higher ability of PrOx to oxidize NO to NO2, improves the soot combustion in a higher extent than CeO2 in presence of NOx. The catalytic activity of PrOx-3DOM after several soot combustion cycles is also confirmed.</description><subject>3DOM</subject><subject>Catalysis</subject><subject>Catalysts</subject><subject>Catalytic activity</subject><subject>Ceria</subject><subject>Cerium oxides</subject><subject>Chemical synthesis</subject><subject>Combustion</subject><subject>Nitrogen dioxide</subject><subject>Nitrogen oxides</subject><subject>Noble metals</subject><subject>NOx</subject><subject>Oxygen production</subject><subject>Praseodymia</subject><subject>Praseodymium</subject><subject>Praseodymium oxide</subject><subject>Soot</subject><issn>0926-3373</issn><issn>1873-3883</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9UMlqwzAUFKWFpssf9CDo2akWx5Z7KITQDQLpIT0LWXqmMrblSnJo_r4K7rmnB_NmhplB6I6SJSW0eGiXatQq1ktGqEjQkuTVGVpQUfKMC8HP0YJUrMg4L_klugqhJYQwzsQCdfsvD5AZ28MQrBtU1x2x8wY8GNwr7d3ovJsC_vC7n0e8HrDtR-8O6au6CH5Q0R4AR4c1eKtwiqG6Y4gBN87j4FzE2vX1FGIyv0EXjeoC3P7da_T58rzfvGXb3ev7Zr3NNBckZtWK0IpzSosUk9S8WeUkL4FRXRhDiTI5KXNlhKmNqBvBclqsSihVVSkFjQF-je5n35T0e4IQZeumFLULkjFSVpxVeZFY-cxKJUPw0MjR2175o6REnnaVrZx3laddT2jaNcmeZhmkBgcLXgZtYdBgrAcdpXH2f4Nf3P2EnQ</recordid><startdate>20190705</startdate><enddate>20190705</enddate><creator>Alcalde-Santiago, Virginia</creator><creator>Bailón-García, Esther</creator><creator>Davó-Quiñonero, Arantxa</creator><creator>Lozano-Castelló, Dolores</creator><creator>Bueno-López, Agustín</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7ST</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><scope>L7M</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0002-5434-6459</orcidid><orcidid>https://orcid.org/0000-0001-8418-8714</orcidid><orcidid>https://orcid.org/0000-0001-9776-3458</orcidid></search><sort><creationdate>20190705</creationdate><title>Three-dimensionally ordered macroporous PrOx: An improved alternative to ceria catalysts for soot combustion</title><author>Alcalde-Santiago, Virginia ; Bailón-García, Esther ; Davó-Quiñonero, Arantxa ; Lozano-Castelló, Dolores ; Bueno-López, Agustín</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c380t-95019331160000b3f54047e21c6dd10ad4074ad8dbd8bf8241657e7a99aaefde3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>3DOM</topic><topic>Catalysis</topic><topic>Catalysts</topic><topic>Catalytic activity</topic><topic>Ceria</topic><topic>Cerium oxides</topic><topic>Chemical synthesis</topic><topic>Combustion</topic><topic>Nitrogen dioxide</topic><topic>Nitrogen oxides</topic><topic>Noble metals</topic><topic>NOx</topic><topic>Oxygen production</topic><topic>Praseodymia</topic><topic>Praseodymium</topic><topic>Praseodymium oxide</topic><topic>Soot</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Alcalde-Santiago, Virginia</creatorcontrib><creatorcontrib>Bailón-García, Esther</creatorcontrib><creatorcontrib>Davó-Quiñonero, Arantxa</creatorcontrib><creatorcontrib>Lozano-Castelló, Dolores</creatorcontrib><creatorcontrib>Bueno-López, Agustín</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Environment Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><jtitle>Applied catalysis. B, Environmental</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Alcalde-Santiago, Virginia</au><au>Bailón-García, Esther</au><au>Davó-Quiñonero, Arantxa</au><au>Lozano-Castelló, Dolores</au><au>Bueno-López, Agustín</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Three-dimensionally ordered macroporous PrOx: An improved alternative to ceria catalysts for soot combustion</atitle><jtitle>Applied catalysis. B, Environmental</jtitle><date>2019-07-05</date><risdate>2019</risdate><volume>248</volume><spage>567</spage><epage>572</epage><pages>567-572</pages><issn>0926-3373</issn><eissn>1873-3883</eissn><abstract>[Display omitted]
A novel three dimensionally ordered macroporous PrOx catalyst, which outperforms the activity of Ceria, has been prepared and tested for soot combustion. This novel catalyst combines high active oxygen production with enhanced transfer of such active oxygen to soot due to the improved solid-solid soot-catalyst contact.
•A novel three dimensionally ordered macroporous (3DOM) PrOx catalyst was prepared.•The soot combustion activity of 3DOM PrOx was compared with 3DOM Ceria and conventional (Ref) catalyst.•3DOM PrOx is more active for soot combustion than 3DOM ceria.•PrOx is more easily reducible than CeO2 and 3DOM structure favours that reducibility.•PrOx presents higher ability to oxidize NO to NO2 than CeO2 improving the activity.
The synthesis and use for soot combustion of praseodymium oxide with three-dimensionally ordered macroporous (3DOM) structure is described. This novel PrOx-3DOM catalyst is presented as an improved noble-metal-free alternative to CeO2 as soot combustion catalyst. The PrOx-3DOM catalyst presents a defined 3DOM structure with high macropores volume, which significantly enhances the solid-solid soot-catalyst contact. This enhanced contact, together with the improved reducibility of PrOx regarding CeO2, ameliorate the active oxygen production and its transfer to soot particles, improving the soot combustion with O2. In addition, the higher ability of PrOx to oxidize NO to NO2, improves the soot combustion in a higher extent than CeO2 in presence of NOx. The catalytic activity of PrOx-3DOM after several soot combustion cycles is also confirmed.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.apcatb.2018.10.049</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-5434-6459</orcidid><orcidid>https://orcid.org/0000-0001-8418-8714</orcidid><orcidid>https://orcid.org/0000-0001-9776-3458</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | 3DOM Catalysis Catalysts Catalytic activity Ceria Cerium oxides Chemical synthesis Combustion Nitrogen dioxide Nitrogen oxides Noble metals NOx Oxygen production Praseodymia Praseodymium Praseodymium oxide Soot |
title | Three-dimensionally ordered macroporous PrOx: An improved alternative to ceria catalysts for soot combustion |
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