| DC Field | Value | Language |
|---|
| dc.contributor.author | Crisafulli, Rudy | - |
| dc.contributor.author | Amorim, Fernando M. de Lino | - |
| dc.contributor.author | Marcionilio, Suzana Maria Loures de Oliveira | - |
| dc.contributor.author | Cunha, William Mendes | - |
| dc.contributor.author | Araújo, Brenda Roberta Silveira de | - |
| dc.contributor.author | Dias, José Alves | - |
| dc.contributor.author | Linares León, José Joaquín | - |
| dc.date.accessioned | 2020-04-22T19:39:46Z | - |
| dc.date.available | 2020-04-22T19:39:46Z | - |
| dc.date.issued | 2019-05 | - |
| dc.identifier.citation | CRISAFULLI, Rudy et al. Electrochemistry for biofuels waste valorization: vinasse as a reducing agent for Pt/C and its application to the electrolysis of glycerin and vinasse. Electrochemistry Communications, v. 102, maio 2019. p. 25-30. DOI: https://doi.org/10.1016/j.elecom.2019.03.012. Disponível em: https://www.sciencedirect.com/science/article/pii/S1388248119300761?via%3Dihub. Acesso em: 22 abr. 2020. | pt_BR |
| dc.identifier.uri | https://repositorio.unb.br/handle/10482/37586 | - |
| dc.language.iso | Inglês | pt_BR |
| dc.publisher | Elsevier | pt_BR |
| dc.rights | Acesso Aberto | pt_BR |
| dc.title | Electrochemistry for biofuels waste valorization: vinasse as a reducing agent for Pt/C and its application to the electrolysis of glycerin and vinasse | pt_BR |
| dc.type | Artigo | pt_BR |
| dc.subject.keyword | Valorização de resíduos | pt_BR |
| dc.subject.keyword | Vinhaça | pt_BR |
| dc.subject.keyword | Glicerina | pt_BR |
| dc.subject.keyword | Eletroquímica | pt_BR |
| dc.subject.keyword | Hidrogênio | pt_BR |
| dc.subject.keyword | Catalisadores | pt_BR |
| dc.rights.license | © 2019 The Authors. Published by Elsevier B.V. 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.2019.03.012 | pt_BR |
| dc.description.abstract1 | Waste vinasse has been used, for the first time, as a reducing agent to prepare a 20 wt% Pt/C electrocatalyst.
After alkalization and subsequent filtration, abundant cations such as Ca, Mg and Fe were effectively removed,
precipitating as hydroxides and insoluble phosphates. Pt chemical reduction was carried out under reflux in the
presence of Vulcan XC-72R carbon by the action of reductive species such as sugars and phenols present.
Reduction was confirmed by thermal analysis and X-ray diffractograms displaying the typical Pt fcc structure
formed by nanocrystals. In the transmission images, an irregular dispersion of the Pt nanoparticles was observed
on the carbon support, with the presence of large agglomerations with a cotton-like structure. This structure was
found to be very active for glycerol electrolysis in an alkaline membrane electrolysis cell, comparable to commercial materials. Finally, results for electrolysis of the vinasse were also presented, demonstrating the possibility of valorizing this residue by the production of hydrogen. | pt_BR |
| dc.description.unidade | Instituto de Química (IQ) | pt_BR |
| Appears in Collections: | Artigos publicados em periódicos e afins
|
