| Texto completo | |
| Autor(es): |
Piazzolla, Fernando
;
Moraes, Tamara S.
;
Figueiredo, Stefany S.
;
de Paula, Dryade F.
;
Veiga, Emerson L. dos Santos
;
Rodella, Cristiane B.
;
Fonseca, Fabio C.
Número total de Autores: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | CATALYSIS TODAY; v. 444, p. 11-pg., 2024-08-29. |
| Resumo | |
The escalating increase in global temperatures has highlighted hydrogen (H2) as a promising alternative clean energy carrier. Hydrogen can be derived from biofuels such as bioethanol, offering an efficient liquid carrier that addresses availability, storage, and distribution issues hindering a widespread use of H2. This study reports on the synthesis of La0.4Sr0.4Ti0.8Ni0.2O3-delta catalysts followed by the exsolution process to enhance catalytic activity for H2 production via ethanol steam reforming (ESR) reaction. Single-phase compounds with exsolved metallic nanoparticles were successfully tested for ESR, revealing an ethanol conversion rate of 40 % and over 40 % H2 production for the catalyst reduced at 1000 degrees C for 12 hours. Stability tests demonstrated the catalyst's capacity for regeneration in both water vapor and N2. The experimental data demonstrate that exsolving metallic nanoparticles is a viable strategy for producing a stable catalyst for the ESR reaction. (AU) | |
| Processo FAPESP: | 18/19251-7 - Equipamento Multiusuário (EMU) concedido no processo 2017/50332-0: ASAP 2020 Plus analisador de área superficial, volume e área de poros |
| Beneficiário: | Ivana Conte Cosentino |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Equipamentos Multiusuários |
| Processo FAPESP: | 19/15110-2 - Desenvolvimento de catalisadores core-shell para reação de reforma a vapor do etanol |
| Beneficiário: | Tamara Siqueira Moraes |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |