| Campo DC | Valor | Idioma |
|---|
| dc.contributor.author | Amorim, Fernando M. de Lino | - |
| dc.contributor.author | Crisafulli, Rudy | - |
| dc.contributor.author | Linares Léon, José Joaquín | - |
| dc.date.accessioned | 2024-10-11T12:42:53Z | - |
| dc.date.available | 2024-10-11T12:42:53Z | - |
| dc.date.issued | 2023-02-07 | - |
| dc.identifier.citation | AMORIM, Fernando M. de L.; CRISAFULLI, Rudy; LINARES, José J. Hydrogen and electricity at once: an alkaline-acidic ethanol electroreformer. Electrochemistry Communications, [S. l.], v. 148, 107452, mar. 2023. DOI: https://doi.org/10.1016/j.elecom.2023.107452. Disponível em: https://www.sciencedirect.com/science/article/pii/S1388248123000267?via%3Dihub. Acesso em: 11 out. 2024. | pt_BR |
| dc.identifier.uri | http://repositorio.unb.br/handle/10482/50553 | - |
| dc.language.iso | eng | pt_BR |
| dc.publisher | Elsevier B. V. | pt_BR |
| dc.rights | Acesso Aberto | pt_BR |
| dc.title | Hydrogen and electricity at once : an alkaline-acidic ethanol electroreformer | pt_BR |
| dc.type | Artigo | pt_BR |
| dc.subject.keyword | Etanol | pt_BR |
| dc.subject.keyword | Hidrogênio | pt_BR |
| dc.subject.keyword | Eletricidade | pt_BR |
| dc.rights.license | This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). | pt_BR |
| dc.identifier.doi | https://doi.org/10.1016/j.elecom.2023.107452 | pt_BR |
| dc.description.abstract1 | This study presents the results of an alkaline-acidic ethanol electroreformer producing hydrogen and electricity simultaneously. This is due to the pH gradient between an alkaline anolyte/fuel (1 mol/L ethanol and 4 mol/L KOH) and an acidic catholyte/comburent (1 mol/L H2SO4), separated by a K+-pretreated Nafion® 211 membrane to prevent chemical neutralization, resulting in an extra electromotive force. At 70 °C, the electroreformer delivers a maximum power density of 23 mW cm−2. An increase in the flow rate from 0.17 to 1.12 mL min−1 is also beneficial due to the mass transport enhancement. Finally, over the stability tests for 3 h at 50 °C and a flow rate of 1.12 mL min−1, it is possible to produce H2 at an average rate of 0.218 and 0.267 STP m3 m-2h−1, and an average energy of 0.0877 and 0.0997 kWh m−2 in recirculation and single-pass mode, respectively. The worse performance in the recirculation mode seems to be due to the accumulation of the ethanol electro-oxidation products, resulting in the poisoning of the catalyst surface. | pt_BR |
| dc.contributor.affiliation | Universidade de Brasília, Instituto de Química | pt_BR |
| dc.contributor.affiliation | Universidade de Brasília, Instituto de Química | pt_BR |
| dc.contributor.affiliation | Universidade de Brasília, Instituto de Química | pt_BR |
| dc.description.unidade | Instituto de Química (IQ) | pt_BR |
| Aparece nas coleções: | Artigos publicados em periódicos e afins
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