We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Microwave-assisted hydrothermal synthesis of Sn<sub>3</sub>O<sub>4</sub> and SnO for electrocatalytic reduction of CO<sub>2</sub> to high-added-value compounds.
- Authors
Romeiro, Fernanda da Costa; Martins, Alysson Stefan; Perini, João Angelo Lima; Silva, Beatriz Costa e; Zanoni, Maria Valnice Boldrin; Orlandi, Marcelo Ornaghi
- Abstract
Sn-based electrocatalysts have recently been applied for CO2 reduction to generate fuels. Here, tin oxide crossed architectures (SnO) and petal-like Sn3O4 semiconductors were synthesized using the microwave-assisted hydrothermal method. The synthesized materials were applied in electrochemical reduction of CO2 and promoted the formation of methanol, ethanol and acetone. The best condition (greatest amount of products) was obtained with − 0.5 V vs Ag/AgCl for both electrocatalysts. For the first time, acetone formation was observed using both SnO and Sn3O4 materials. The SnO electrocatalyst exhibited the best electrochemical activity for CO2 reduction, ascribed to higher charge transfer corroborated by the higher current densities and lower resistance in the Nyquist diagram. Differences in methanol concentration obtained by the samples were ascribed to the different morphology and charge transfer over the films. The results showed that Sn-based electrocatalysts can be applied to generate important products, such as methanol and ethanol, aside from promoting acetone formation.
- Subjects
NYQUIST diagram; ACETONE; CHARGE transfer; HYDROTHERMAL synthesis; ELECTROLYTIC reduction; TIN oxides; ELECTROCATALYSTS
- Publication
Journal of Materials Science, 2023, Vol 58, Issue 8, p3508
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-023-08230-y