Dados do processo de eletrodeposição de óxidos de cobre em espuma de níquel, caracterizações das propriedades morfológico-estrutural e fotoeletroquímica dos eletrodos preparados para aplicação na reação fotoassistida de redução de CO2

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Lima, Vanderlei Silva; Longo, Claudia, 2025, "Dados do processo de eletrodeposição de óxidos de cobre em espuma de níquel, caracterizações das propriedades morfológico-estrutural e fotoeletroquímica dos eletrodos preparados para aplicação na reação fotoassistida de redução de CO2", https://doi.org/10.25824/redu/2BCO2C, Repositório de Dados de Pesquisa da Unicamp, V1
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Description
Substrato de espuma de níquel (Nifoam) apresenta elevada área superficial, estabilidade química em meio aquoso e estabilidade térmica apreciável, sendo ideal para sínteses de fotocatalisadores. Assim, fotocatodos contendo Cu2O, CuO, Cu2O/CuO, NiO/CuO e CuBi2O4 foram preparados sobre Nifoam e aplicados a CO2RR em solução aquosa de NaHCO3 saturada com CO2. Os eletrodos apresentaram valores positivos de fotopotencial e valores negativos de fotocorrente (características típicas de eletrodos semicondutores tipo-p) com fotoatividade sob irradiação na região do visível. Os dados contêm informações: -Processo de eletrodeposição: procedimento potenciostático; -Propriedades morfológico-estrutural: difração de raios-X (DRX), microscopia eletrônica de varredura (MEV), espectroscopia de reflectância difusa (Diffuse Reflectance Spectroscopy, DRS); -Propriedades fotoeletroquímica: voltametrias cíclica e linear, cronopotenciomentria e cronoamperometria, análises de eficiência quântica externa (Incident Photon-to-Current Efficiency); -Identificação e quantificação dos produtos: cromatografia gasosa com método de injeção por Headspace com detector de fragmentos de massas (GC/MS-HS). Obs: os metadados ainda não podem ser divulgados por questões de proteção intelectual. Para maiores dúvidas entre em contato diretamente com os autores. (2025-08-11)
Subject Chemistry; Earth and Environmental Sciences; Engineering; Physics
Keyword Fotoeletroquímica, Semicondutores, Energia solar
Related Publication Lima, Vanderlei Silva. Eletrodos preparados por eletrodeposição de óxidos de cobre em espuma de níquel para aplicação na reação fotoassistida de redução de CO2 a etanol utilizando reator em fluxo. 2025. Tese (doutorado) - Instituto de Química, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, 2025. Orientador: Claudia Longo.
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