Stability and hydration studies of Y-Doped Ba(Ce,Zr)O3
| Data(s) |
2015
|
|---|---|
| Resumo |
BaC<sub>e1-x</sub>YxO<sub>3-δ </sub>(BCY) and BaCe<sub>0.8-y</sub>Zr<sub>y</sub>Y<sub>0.2</sub>O<sub>3-δ </sub>(BCZY) compounds were synthesised via an aqueous sol-gel method and two different calcination processes were tested for BCZY synthesis. The highest hydration capacity was recorded for the compound that contained the highest Y-doping level (x=0.2). Further substitution of Ce<sup>4+</sup> by Zr<sup>4+</sup> enhanced the chemical stability especially for y≥0.2, although decreased proton conductivity. However, BaCe<sub>0.6-0.2</sub>Zr<sub>0.2</sub>Y<sub>0.2</sub>O<sub>2.9 </sub>(BCZ20Y20) which presented adequate water uptake and high chemical stability in presence of CO<sub>2</sub>, was found to be the best candidate compound to be used in applications such as electrocatalytic CO<sub>2</sub> hydrogenation. |
| Identificador | |
| Idioma(s) |
eng |
| Direitos |
info:eu-repo/semantics/restrictedAccess |
| Fonte |
Poulidi , D & Stavrakakis , E 2015 , ' Stability and hydration studies of Y-Doped Ba(Ce,Zr)O3 ' Solid State Ionics . |
| Palavras-Chave | #Barium cerate #Mixed proton and oxygen ion conductors #Sol-gel synthesis #Water uptake #Thermogravimetric analysis #CO2 stability |
| Tipo |
article |
