| Full text | |
| Author(s): Show less - |
Rodrigues, Thenner S.
[1]
;
de Moura, Arthur B. L.
[1]
;
e Silva, Felipe A.
[1]
;
Candido, Eduardo G.
[1]
;
da Silva, Anderson G. M.
[2]
;
de Oliveira, Daniela C.
[3]
;
Quiroz, Jhon
[2]
;
Camargo, Pedro H. C.
[2]
;
Bergamaschi, Vanderlei S.
[1]
;
Ferreira, Joao C.
[1]
;
Linardi, Marcelo
[1]
;
Fonseca, Fabio C.
[1]
Total Authors: 12
|
| Affiliation: | [1] IPEN CNEN, Inst Pesquisas Energet & Nucl, BR-05508000 Sao Paulo, SP - Brazil
[2] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, Av Prof Lineu Prestes 748, BR-05508000 Sao Paulo, SP - Brazil
[3] Ctr Nacl Pesquisa Energia & Mat, Lab Nacl Luz Sincrotron, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | FUEL; v. 237, p. 1244-1253, FEB 1 2019. |
| Web of Science Citations: | 5 |
| Abstract | |
We reported herein the synthesis in high yields ( > 97%) of Ce0.9Sm0.1O2-delta nanowires displaying well-defined shape, size, and composition by a simple, fast, and low-cost two-step hydrothermal method. The Ce0.9Sm0.1O2-delta nanowires synthesis was followed by the wet impregnation of Ni without the utilization of any stabilizing agent. The Ni/Ce0.9Sm0.1O2-delta nanowires showed higher surface area, high concentration of oxygen vacancies at surface, and finely dispersed Ni particles with significantly higher metallic surface area as compared with catalysts prepared from commercial materials with similar compositions. Such unique and improved properties are reflected on the catalytic performance of the Ni/Ce0.9Sm0.1O2-delta nanowires towards ethanol steam reforming. The nanowires exhibited high yields for hydrogen production (similar to 60% of selectivity) and an exceptional stability with no loss of activity after 192 h of reaction at 550 degrees C. The reported results provide insights and can inspire high-yield production of nanostructured catalysts displaying controlled and superior properties that enable practical applications in heterogeneous catalysis. (AU) | |
| FAPESP's process: | 14/09087-4 - Studies on the use of bioethanol in proton exchange membrane and solid oxide fuel cells |
| Grantee: | Marcelo Linardi |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 14/50279-4 - Brasil Research Centre for Gas Innovation |
| Grantee: | Julio Romano Meneghini |
| Support Opportunities: | Research Grants - Research Centers in Engineering Program |
| FAPESP's process: | 17/04929-5 - Development of catalysts to obtain hydrogen from bio-ethanol |
| Grantee: | Thenner Silva Rodrigues |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |