Effect of Cu(BDC-NH2) MOF deposited on Cu/Cu2O electrode and its better performance in photoelectrocatalytic reduction of CO2

Autor(es)

Silva, Beatriz Costa E. ^{[1, 2]} ; Irikura, Kallyni ^{[1, 2]} ; Galvao Frem, Regina Celia ^[1] ; Boldrin Zanoni, Maria Valnice ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Inst Chem, Araraquara 55 Prof Francisco Degni St, BR-14800060 Araraquara, SP - Brazil

^[2] Sao Paulo State Univ UNESP, Natl Inst Alternat Technol Detect, Inst Chem, Toxicol Evaluat & Removal Micropollutants & Radio, BR-14800060 Araraquara, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF ELECTROANALYTICAL CHEMISTRY; v. 880, JAN 1 2021.
• Citações Web of Science: 2

Resumo

The present work reports the development of Cu/Cu2O-Cu(BDC-NH2) electrode, prepared by electrochemical deposition using the ligand 2-amino-1,4-benzenedicarboxylic acid and copper ion (II) produced in situ, and its application in CO2 reduction in aqueous medium. The Cu(BDC-NH2) MOF deposited on Cu/Cu2O electrode act as efficient catalyst for the photoelectrocatalytic reduction of CO2 due to its high surface area and high capacity of trapping CO2. Under optimized conditions and based on the application of the proposed electrode, the photoelectrocatalytic reduction of 0.1 mol L?1 sodium sulfate saturated with CO2 under UV?Vis irradiation and applied potential of +0.1 V can generate an amount of approximately 674 ?mol L?1 of methanol in 3 h of treatment. The amine substituent in Cu(BDC-NH2) MOF plays an important role in the capturing of CO2, and this contributes toward obtaining better photoelectrocatalytic efficiency of the CO2/methanol conversion compared to the use of the Cu/Cu2O and the nonfunctionalized Cu/Cu2O-Cu(BDC) MOF electrode. (AU)

• Processo FAPESP: 14/50945-4 - INCT 2014: Instituto Nacional de Tecnologias Alternativas para Detecção, Avaliação Toxicológica e Remoção de Micropoluentes e Radioativos
• Beneficiário: Maria Valnice Boldrin
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 17/12790-7 - Preparação e caracterização de eletrodos nanoestruturados de TiO2 modificados com estruturas metal orgânico (MOFs) para a aplicação na pré-concentração e redução de CO2
• Beneficiário: Kallyni Irikura
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado