An Artificial Photosynthesis System Based on Ti/TiO2 Coated with Cu(II) Aspirinate Complex for CO2 Reduction to Methanol

Autor(es)

Stulp, Simone ; Cardoso, Juliano C. ; de Brito, Juliana Ferreira ; Flor, Jader Barbosa S. ; Galvao Frem, Regina Celia ; Sayao, Fabiana Avoilo ; Boldrin Zanoni, Maria Valnice

• Tipo de documento: Artigo Científico
• Fonte: ELECTROCATALYSIS; v. 8, n. 3, p. 279-287, MAY 2017.
• Citações Web of Science: 5

Resumo

A novel copper(II) aspirinate complex easily deposited onto nanotubes of Ti/TiO2 was successfully employed in the conversion of CO2 to methanol through the use of UV-Vis irradiation coupled to a bias potential of -0.35 V vs saturated calomel electrode. An average concentration of 0.8 mmol L-1 of methanol was obtained in 0.1 mol L-1 of sodium sulfate saturated with CO2 using a self-organized Ti/TiO2 nanotubular array electrode coated with a {[}Cu-2(asp)(4)] complex. The influence exerted by CO2 and the complex over the behavior of photocurrent vs potential curves is discussed. Furthermore, a complete investigation of all parameters that tend to influence the global process of methanol production by the photoelectrocatalytic method such as applied potential, electrolyte, and time is also thoroughly presented. (AU)

• Processo FAPESP: 15/18109-4 - Contribuição dos Materiais Nanoestruturados na Eletroanálise de Fármacos e Corantes, na Oxidação e Redução Fotoeletrocatalítica de Poluentes Orgânicos e Inorgânicos e Desinfecção de Água
• Beneficiário: Maria Valnice Boldrin
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/25343-8 - Oxidação Simultânea de Compostos Orgânicos da Água Residual de Petróleo e Redução de CO2 Dissolvido por Fotoeletrocatálise
• Beneficiário: Juliana Ferreira de Brito
• Modalidade de apoio: Bolsas no Brasil - Doutorado