Synthesis, characterization and mechanical properties of NiO - GDC20 (Ce{sub 0.8}Gd{sub 0.2}O{sub 1.9}) nano composite anode for solid oxide fuel cells

Journal Article · Fri May 06 04:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4946685· OSTI ID:22606649

Rao, P. Vijaya Bhaskar; Sharma, R. K. ^[1]

---

1. Department of Physics, St. Mary’s Engineering College, Deshmukhi (v), Nalgonda-508284, Telangana (India)

In the present research work, X (NiO) +1-X(Ce{sub 0.8}Gd{sub 0.2}O{sub 1.9}) where X = 30,40 and 45 wt% Nano Composite Anodes are synthesized for low temperature operating solid oxide fuel cells (SOFC). NiO and Ce{sub 0.8}Gd{sub 0.2}O{sub 1.9} (GDC20) are synthesized by sol-gel citrate method and the nanopowders of NiO, GDC20 were calcined from 650 °c to 750 °c. For anode materials, pelletized the nanocomposites of X(NiO)+ (1-X) GDC20 (X = 30,40,45 wt.%) and sintered at 1200 °c. systematic study of atomic structure, purity, phase and structural parameters such as Lattice parameters, crystallite size of as-synthesized nanopowders and anode materials were carried out by XRD and SEM. For mechanical strength, Vickers micro-hardness of anode composites were estimated and observed that micro-hardness of composites were increasing with NiO wt.% and the density of sintered samples, which is varying from 4.35 to 5.54 Gpa at 500g load.

• OSTI ID: 22606649
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1728; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ANODES
CERIUM COMPOUNDS
CITRATES
DENSITY
GADOLINIUM COMPOUNDS
HARDNESS
IMPURITIES
LATTICE PARAMETERS
NANOCOMPOSITES
NANOSTRUCTURES
NICKEL OXIDES
OXYGEN COMPOUNDS
POWDERS
PRESSURE RANGE GIGA PA
SCANNING ELECTRON MICROSCOPY
SOL-GEL PROCESS
SOLID OXIDE FUEL CELLS
SOLIDS
SYNTHESIS
X-RAY DIFFRACTION