Data/hora: 20/06/2024 13:29:12

Biblioteca(s): | Embrapa Instrumentação.
Data corrente: | 16/05/2024
Data da última atualização: | 11/06/2024
Autoria: | RAJA, S.; SILVA, G. T. S. T. da; REIS, E. A.; CRUZ, J. C. da; SILVA, A. B.; ANDRADE, M. B.; PERIYASAMI, G.; KARTHIKEYAN, P.; PEREPICHKA, I. F.; MASCARO, L. H.; RIBEIRO, C.
Afiliação: | SEBASTIAN RAJA, FEDERAL UNIVERSITY OF SÃO CARLOS (UFSCAR); FEDERAL UNIVERSITY OF SÃO CARLOS (UFSCAR); UNIVERSITY OF SÃO PAULO (USP); ANELISSE BRUNCA SILVA, FEDERAL UNIVERSITY OF SÃO CARLOS (UFSCAR); UNIVERSITY OF SÃO PAULO (USP); GOVINDASAMI PERIYASAMI, COLLEGE OF SCIENCE, KING SAUD UNIVERSITY; PERUMAL KARTHIKEYAN, OHIO STATE UNIVERSITY; SILESIAN UNIVERSITY OF TECHNOLOGY; LUCIA HELENA MASCARO, FEDERAL UNIVERSITY OF SÃO CARLOS (UFSCAR); CAUE RIBEIRO DE OLIVEIRA, CNPDIA.
Título: | Perylenediimide-Incorporated Covalent Triazine Framework: A Highly Conductive Carbon Support for Copper Single-Atom Catalysts in Electrocatalytic CO2 Conversion.
Ano de publicação: | 2024
Fonte/Imprenta: | Energy & Fuels, v. 37, 2024.
Páginas: | 19113−19123
DOI: | https://doi.org/10.1021/acs.energyfuels.3c03268
Idioma: | Inglês
Conteúdo: | ABSTRACT: Here, we show that a perylenediimide-incorporated covalent triazine framework (PDI-CTF) leads to an adequate conductive carbon support for copper single-atom catalysts (Cu-SACs), allowing the selective electroreduction of CO2 to methanol. CTF-Cu-SACs converted CO2 into methanol with a faradaic efficiency of 72.6% at a low overpotential (0.2 V vs RHE). While increasing the overpotential (0.2 to −0.4 V vs RHE), CTF-Cu-SACs promoted syngas (CO and H2) production with faradaic efficiencies of 53.2 and 39.5%, respectively. Moreover, CTF-Cu-SACs led to robust catalytic stability for 20 h of continuous electrolysis in an aqueous solution. Notably, it was observed that additional nitrogen doping to the PDI-CTF profoundly influences product selectivity, possibly due to the synergetic effect of highly conductive pyrolyzed CTF and N-chelating ligands with rich active sites. Our results indicate that the PDI-CTF-based Cu-SACs provide abundant active sites for CO2 adsorption, thus enhancing intermolecular ion and charge transportation that efficiently reduces CO2 into methanol in an aqueous system.
Palavras-Chave: | Major environmental threat.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1164292/1/P-Perylenediimide-Incorporated-Covalent-Triazine-Framework.pdf
Registro original: | Embrapa Instrumentação (CNPDIA)
Exemplares: | CNPDIA - (18429-1) - UPC - AP - DD - PROCI.24/34 -  - 2024/52 - DIS