Improving the electrocatalytic activities and CO tolerance of Pt NPs by incorporating TiO2 nanocubes onto carbon supports
Carregando...
Data
Data de publicação
Autores IPEN
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
ChemCatChem
ODS
Exportar
Resumo
Designing efficient anode CO-tolerant electrocatalysts is critical in low-temperature fuel cell catalysts fueled either by H2/CO or alcohol. We demonstrate that the incorporation of TiO2 nanocubes (TiO2NCs) on Carbon Vulcan supports, followed by the synthesis of Pt NPs at their surface (Pt/TiO2NCs-C material), led to improvements in performance towards the electrooxidation of carbon monoxide, ethanol, methanol, ethylene glycol, and glycerol in acidic media relative to the commercial Pt/C and Pt/TiO2-C counterparts employing commercial TiO2. The nanocubes enabled changes in the electronic properties of Pt NPs while contributing to the bifunctional mechanism as compared to Pt/C and Pt/TiO2-C with commercial TiO2. Fuel cell experiments fed with H2/CO steam showed that Pt/TiO2NCs-C employing nanocubes was resistant to CO-poisoning, yielding superior performance in operational conditions. The results reported herein have important implications for developing electrocatalysts with superior performances in PEMFCs.
Como referenciar
ANTONIASSI, RODOLFO M.; QUIROZ, JHON; BARBOSA, EDUARDO C.M.; PARREIRA, LUANNA S.; ISIDORO, ROBERTA A.; SPINACE, ESTEVAM V.; SILVA, JULIO C.M.; CAMARGO, PEDRO H.C. Improving the electrocatalytic activities and CO tolerance of Pt NPs by incorporating TiO2 nanocubes onto carbon supports. ChemCatChem, v. 13, n. 8, p. 1931-1939, 2021. DOI: 10.1002/cctc.202002066. Disponível em: http://repositorio.ipen.br/handle/123456789/32007. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.