| Full text | |
| Author(s): |
Machado, M. F. S.
;
Moraes, L. P. R.
;
Monteiro, N. K.
;
Esposito, V.
;
de Florio, D. Z.
;
Marani, D.
;
Fonseca, F. C.
;
Singhal, SC
;
Kawada, T
Total Authors: 9
|
| Document type: | Journal article |
| Source: | SOLID OXIDE FUEL CELLS 15 (SOFC-XV); v. 78, n. 1, p. 8-pg., 2017-01-01. |
| Abstract | |
Gadolinium-doped cerium oxide (GDC) is an attractive ceramic material for solid oxide fuel cells (SOFCs) both as the electrolyte and in composite electrodes operating at low and intermediate temperatures. GDC exhibits high oxygen ion conductivity at a wide range of temperatures and displays a high resistance to carbon deposition when hydrocarbons are used as fuels. However, an inconvenience of ceria-based oxides is the high sintering temperature needed to obtain a fully dense ceramic body. In this study, a green chemistry route for the synthesis of 10 mol% GDC nanoparticles is proposed. The aqueous precipitation method starts from the nitrates of both cerium and gadolinium and uses excess hexamethylenetetramine (HMT) to produce crystalline GDC at 80 degrees C. Such a low temperature synthesis provides control over particle size and sinterability of the material at low temperatures. (AU) | |
| 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: | 15/20434-0 - Development of ceramic nanosheets-based inks for inkjet printing of ultra-thin films for solid oxide cells (SOCs) components |
| Grantee: | Fabio Coral Fonseca |
| Support Opportunities: | Research Grants - Visiting Researcher Grant - International |
| FAPESP's process: | 13/26961-7 - Development of anodes for solid oxide fuel cells operating directly on renewable fuels |
| Grantee: | Fabio Coral Fonseca |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 16/07156-4 - Development of anodes with catalytic layers for direct ethanol solid oxide fuel cells |
| Grantee: | Marina Machado Livinalli |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
| 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 |