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One-step preparation of Co 2 V 2 O 7 : synthesis and application as a Fenton-like catalyst in a gas diffusion electrode
Bimetallic oxides and MOFs have been used as catalysts for the ORR two-electron and Fenton-based processes. This work reports the development of a new green one-step route for obtaining Co V O . The Co V O oxide was immobilized on Printex-L6 carbon and used as a catalyst for the oxygen reduction rea...
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| Published in: | Physical chemistry chemical physics : PCCP 2022-05, Vol.24 (17), p.10249-10262 |
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| Main Authors: | , , , , |
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| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c992-b97830395caafaf369d2b378f66a84fbe150aae9a6bf4046cea9e23d57f9a2a43 |
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| cites | cdi_FETCH-LOGICAL-c992-b97830395caafaf369d2b378f66a84fbe150aae9a6bf4046cea9e23d57f9a2a43 |
| container_end_page | 10262 |
| container_issue | 17 |
| container_start_page | 10249 |
| container_title | Physical chemistry chemical physics : PCCP |
| container_volume | 24 |
| creator | Gromboni, Murilo Fernando Cordeiro-Junior, Paulo Jorge Marques Corradini, Patricia Gon Mascaro, Lucia Helena Lanza, Marcos Roberto de Vasconcelos |
| description | Bimetallic oxides and MOFs have been used as catalysts for the ORR
two-electron and Fenton-based processes. This work reports the development of a new green one-step route for obtaining Co
V
O
. The Co
V
O
oxide was immobilized on Printex-L6 carbon and used as a catalyst for the oxygen reduction reaction (ORR) and in heterogeneous Fenton-based processes. The PL6C/2.5% Co
V
O
sample exhibited the best performance in the ORR
a two-electron pathway, increasing the selectivity for H
O
generation. Electrochemical impedance spectroscopy analysis showed a decrease in charge transfer resistance in the Co
V
O
/PL6C matrix. The application of a gas diffusion electrode (GDE) modified with 2.5% Co
V
O
resulted in a 30% increase in H
O
production compared to the unmodified GDE. The unmodified GDE promoted methyl-paraben (MeP) removal of ∼80% after 90 min treatment, whereas the modified GDE promoted ∼90% of MeP removal in 30 min. The results obtained point to the potential of Co
V
O
in improving the efficiency of GDE when applied for the treatment of organic pollutants. |
| doi_str_mv | 10.1039/d2cp00072e |
| format | article |
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two-electron and Fenton-based processes. This work reports the development of a new green one-step route for obtaining Co
V
O
. The Co
V
O
oxide was immobilized on Printex-L6 carbon and used as a catalyst for the oxygen reduction reaction (ORR) and in heterogeneous Fenton-based processes. The PL6C/2.5% Co
V
O
sample exhibited the best performance in the ORR
a two-electron pathway, increasing the selectivity for H
O
generation. Electrochemical impedance spectroscopy analysis showed a decrease in charge transfer resistance in the Co
V
O
/PL6C matrix. The application of a gas diffusion electrode (GDE) modified with 2.5% Co
V
O
resulted in a 30% increase in H
O
production compared to the unmodified GDE. The unmodified GDE promoted methyl-paraben (MeP) removal of ∼80% after 90 min treatment, whereas the modified GDE promoted ∼90% of MeP removal in 30 min. The results obtained point to the potential of Co
V
O
in improving the efficiency of GDE when applied for the treatment of organic pollutants.</description><identifier>ISSN: 1463-9076</identifier><identifier>EISSN: 1463-9084</identifier><identifier>DOI: 10.1039/d2cp00072e</identifier><identifier>PMID: 35436782</identifier><language>eng</language><publisher>England</publisher><ispartof>Physical chemistry chemical physics : PCCP, 2022-05, Vol.24 (17), p.10249-10262</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c992-b97830395caafaf369d2b378f66a84fbe150aae9a6bf4046cea9e23d57f9a2a43</citedby><cites>FETCH-LOGICAL-c992-b97830395caafaf369d2b378f66a84fbe150aae9a6bf4046cea9e23d57f9a2a43</cites><orcidid>0000-0003-1499-7967 ; 0000-0002-8285-7838 ; 0000-0001-6203-3893 ; 0000-0003-2137-9964 ; 0000-0001-6908-1097</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27922,27923</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35436782$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Gromboni, Murilo Fernando</creatorcontrib><creatorcontrib>Cordeiro-Junior, Paulo Jorge Marques</creatorcontrib><creatorcontrib>Corradini, Patricia Gon</creatorcontrib><creatorcontrib>Mascaro, Lucia Helena</creatorcontrib><creatorcontrib>Lanza, Marcos Roberto de Vasconcelos</creatorcontrib><title>One-step preparation of Co 2 V 2 O 7 : synthesis and application as a Fenton-like catalyst in a gas diffusion electrode</title><title>Physical chemistry chemical physics : PCCP</title><addtitle>Phys Chem Chem Phys</addtitle><description>Bimetallic oxides and MOFs have been used as catalysts for the ORR
two-electron and Fenton-based processes. This work reports the development of a new green one-step route for obtaining Co
V
O
. The Co
V
O
oxide was immobilized on Printex-L6 carbon and used as a catalyst for the oxygen reduction reaction (ORR) and in heterogeneous Fenton-based processes. The PL6C/2.5% Co
V
O
sample exhibited the best performance in the ORR
a two-electron pathway, increasing the selectivity for H
O
generation. Electrochemical impedance spectroscopy analysis showed a decrease in charge transfer resistance in the Co
V
O
/PL6C matrix. The application of a gas diffusion electrode (GDE) modified with 2.5% Co
V
O
resulted in a 30% increase in H
O
production compared to the unmodified GDE. The unmodified GDE promoted methyl-paraben (MeP) removal of ∼80% after 90 min treatment, whereas the modified GDE promoted ∼90% of MeP removal in 30 min. The results obtained point to the potential of Co
V
O
in improving the efficiency of GDE when applied for the treatment of organic pollutants.</description><issn>1463-9076</issn><issn>1463-9084</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNo9kFFLwzAUhYMobk5f_AGSZ6GaJm3a-CZ1U2EwH4av5Ta50WrXhqRD9u-NTvdwuZdzPi6cQ8hlym5SJtSt4doxxgqOR2SaZlIkipXZ8eEu5ISchfARmTRPxSmZiDwTsij5lHytekzCiI46jw48jO3Q08HSaqCcvsZZ0YLe0bDrx3cMbaDQGwrOda3esxAlusB-HPqkaz-RRh26XRhpG036Fn3TWrsNPzB2qEc_GDwnJxa6gBd_e0bWi_m6ekqWq8fn6n6ZaKV40qiiFDFirgEsWCGV4Y0oSisllJltMM0ZACqQjc1YJjWCQi5MXlgFHDIxI9f7t9oPIXi0tfPtBvyuTln9U179wKuX3_LmEb7aw27bbNAc0P-2xDfohGoX</recordid><startdate>20220504</startdate><enddate>20220504</enddate><creator>Gromboni, Murilo Fernando</creator><creator>Cordeiro-Junior, Paulo Jorge Marques</creator><creator>Corradini, Patricia Gon</creator><creator>Mascaro, Lucia Helena</creator><creator>Lanza, Marcos Roberto de Vasconcelos</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0003-1499-7967</orcidid><orcidid>https://orcid.org/0000-0002-8285-7838</orcidid><orcidid>https://orcid.org/0000-0001-6203-3893</orcidid><orcidid>https://orcid.org/0000-0003-2137-9964</orcidid><orcidid>https://orcid.org/0000-0001-6908-1097</orcidid></search><sort><creationdate>20220504</creationdate><title>One-step preparation of Co 2 V 2 O 7 : synthesis and application as a Fenton-like catalyst in a gas diffusion electrode</title><author>Gromboni, Murilo Fernando ; Cordeiro-Junior, Paulo Jorge Marques ; Corradini, Patricia Gon ; Mascaro, Lucia Helena ; Lanza, Marcos Roberto de Vasconcelos</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c992-b97830395caafaf369d2b378f66a84fbe150aae9a6bf4046cea9e23d57f9a2a43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gromboni, Murilo Fernando</creatorcontrib><creatorcontrib>Cordeiro-Junior, Paulo Jorge Marques</creatorcontrib><creatorcontrib>Corradini, Patricia Gon</creatorcontrib><creatorcontrib>Mascaro, Lucia Helena</creatorcontrib><creatorcontrib>Lanza, Marcos Roberto de Vasconcelos</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><jtitle>Physical chemistry chemical physics : PCCP</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gromboni, Murilo Fernando</au><au>Cordeiro-Junior, Paulo Jorge Marques</au><au>Corradini, Patricia Gon</au><au>Mascaro, Lucia Helena</au><au>Lanza, Marcos Roberto de Vasconcelos</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>One-step preparation of Co 2 V 2 O 7 : synthesis and application as a Fenton-like catalyst in a gas diffusion electrode</atitle><jtitle>Physical chemistry chemical physics : PCCP</jtitle><addtitle>Phys Chem Chem Phys</addtitle><date>2022-05-04</date><risdate>2022</risdate><volume>24</volume><issue>17</issue><spage>10249</spage><epage>10262</epage><pages>10249-10262</pages><issn>1463-9076</issn><eissn>1463-9084</eissn><abstract>Bimetallic oxides and MOFs have been used as catalysts for the ORR
two-electron and Fenton-based processes. This work reports the development of a new green one-step route for obtaining Co
V
O
. The Co
V
O
oxide was immobilized on Printex-L6 carbon and used as a catalyst for the oxygen reduction reaction (ORR) and in heterogeneous Fenton-based processes. The PL6C/2.5% Co
V
O
sample exhibited the best performance in the ORR
a two-electron pathway, increasing the selectivity for H
O
generation. Electrochemical impedance spectroscopy analysis showed a decrease in charge transfer resistance in the Co
V
O
/PL6C matrix. The application of a gas diffusion electrode (GDE) modified with 2.5% Co
V
O
resulted in a 30% increase in H
O
production compared to the unmodified GDE. The unmodified GDE promoted methyl-paraben (MeP) removal of ∼80% after 90 min treatment, whereas the modified GDE promoted ∼90% of MeP removal in 30 min. The results obtained point to the potential of Co
V
O
in improving the efficiency of GDE when applied for the treatment of organic pollutants.</abstract><cop>England</cop><pmid>35436782</pmid><doi>10.1039/d2cp00072e</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0003-1499-7967</orcidid><orcidid>https://orcid.org/0000-0002-8285-7838</orcidid><orcidid>https://orcid.org/0000-0001-6203-3893</orcidid><orcidid>https://orcid.org/0000-0003-2137-9964</orcidid><orcidid>https://orcid.org/0000-0001-6908-1097</orcidid></addata></record> |
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| source | Royal Society of Chemistry:Jisc Collections:Royal Society of Chemistry Read and Publish 2022-2024 (reading list) |
| title | One-step preparation of Co 2 V 2 O 7 : synthesis and application as a Fenton-like catalyst in a gas diffusion electrode |
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