Peng, L.; Garcia-Baldovi, H.; Dhakshinamoorthy, A.; Primo Arnau, AM.; García Gómez, H. (2022). Tridimensional N, P-Codoped Carbon Sponges as Highly Selective Catalysts for Aerobic Oxidative Coupling of Benzylamine. ACS Omega. 7(13):11092-11100. https://doi.org/10.1021/acsomega.1c07179
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/193521
Title:
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Tridimensional N, P-Codoped Carbon Sponges as Highly Selective Catalysts for Aerobic Oxidative Coupling of Benzylamine
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Author:
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Peng, Lu
Garcia-Baldovi, Hermenegildo
Dhakshinamoorthy, Amarajothi
Primo Arnau, Ana Maria
García Gómez, Hermenegildo
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UPV Unit:
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Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros Industriales - Escola Tècnica Superior d'Enginyers Industrials
Universitat Politècnica de València. Departamento de Química - Departament de Química
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Issued date:
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Abstract:
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[EN] Two tridimensional N-doped porous carbon sponges (3DC-X) have been prepared by using cetyltrimethylammonium chloride ( CTAC) and cetyltrimethylammonium bromide (CTAB) as soft templates and alginate to replicate the ...[+]
[EN] Two tridimensional N-doped porous carbon sponges (3DC-X) have been prepared by using cetyltrimethylammonium chloride ( CTAC) and cetyltrimethylammonium bromide (CTAB) as soft templates and alginate to replicate the liquid crystals formed by CTA+ in water. Alginate is a filmogenic polysaccharide of natural origin having the ability to form nanometric defectless films around objects. Subsequent pyrolysis at 900 degrees C under an Ar flow of the resulting CTA(+)-polysaccharide assemblies result in 3DC-1 and 3DC-2, with the N percentages of 0.48 and 0.36 wt % for the materials resulting from CTAC and CTAB, respectively. Another four 3DC materials were obtained via pyrolysis of the adduct of phytic acid and chitosan, rendering an amorphous, N and P-codoped carbon sample (3DC-3 to 3DC-6). The six 3DC samples exhibit a large area (>650 m(2) x g(-1)) and porosity, as determined by Ar adsorption. The catalytic activity of these materials in promoting the aerobic oxidation of benzylamine increases with the specific surface area and doping, being the largest for 3DC-4, which is able to achieve 73% benzylamine conversion to N-benzylidene benzylamine in solventless conditions at 70 degrees C in 5 h. Quenching studies and hot filtration tests indicate that 3DC-4 acts as a heterogeneous catalyst rather than an initiator, triggering the formation of hydroperoxyl and hydroxyl radicals as the main reactive oxygen species involved in the aerobic oxidation.
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Copyrigths:
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Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
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Source:
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ACS Omega. (eissn:
2470-1343
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DOI:
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10.1021/acsomega.1c07179
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Publisher:
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American Chemical Society
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Publisher version:
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https://doi.org/10.1021/acsomega.1c07179
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Coste APC:
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1700 €
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Project ID:
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info:eu-repo/grantAgreement/MINISTERIO DE ECONOMÍA, INDUSTRIA Y COMPETITIVIDAD//SEV-2016-0683//Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia/
info:eu-repo/grantAgreement/AEI//RTI2018-098237-B-C21-AR//HETEROUNIONES DE GRAFENO CON CONFIGURACION CONTROLADA. SINTESIS Y APLICACIONES COMO SOPORTE EN CATALISIS Y EN ELECTRODOS/
info:eu-repo/grantAgreement/MINISTERIO DE ASUNTOS ECONOMICOS Y TRANSFORMACION DIGITAL//RYC-2014-16209//AYUDA RAMON Y CAJAL-PRIMO ARNAU/
info:eu-repo/grantAgreement/MINECO//RTI2018-890237-CO2-R1/
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Thanks:
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Financial support by the Spanish Ministry of Science and Innovation (Severo Ochoa 2016 and RTI2018-890237-CO2-R1) and Generalitat Valenciana is gratefully acknowledged. A.P. thanks the Spanish Ministry for a Ramon y Cajal ...[+]
Financial support by the Spanish Ministry of Science and Innovation (Severo Ochoa 2016 and RTI2018-890237-CO2-R1) and Generalitat Valenciana is gratefully acknowledged. A.P. thanks the Spanish Ministry for a Ramon y Cajal Research associate contract. A.D. is thankful to the University Grants Commission, New Dekhi, for awarding Assistant Professorship through the Faculty Recharge Programme.
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Type:
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Artículo
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