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| Hauptseite > Publikationsdatenbank > Characterization of high Zr/Ce ratio Ba(Zr,Ce,Y)O3−δ proton conductors: investigating the impact of Y on the properties of materials > print |
| Hauptseite > Publikationsdatenbank > Characterization of high Zr/Ce ratio Ba(Zr,Ce,Y)O3−δ proton conductors: investigating the impact of Y on the properties of materials > print |
| 001 | 1034923 | ||
| 005 | 20250203133243.0 | ||
| 024 | 7 | _ | |a 10.1039/D4CP04384G |2 doi |
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| 037 | _ | _ | |a FZJ-2025-00037 |
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| 100 | 1 | _ | |a Zeng, Yuan |0 P:(DE-Juel1)190723 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Characterization of high Zr/Ce ratio Ba(Zr,Ce,Y)O3−δ proton conductors: investigating the impact of Y on the properties of materials |
| 260 | _ | _ | |a Cambridge |c 2025 |b RSC Publ. |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Acceptor-substituted Ba(Zr,Ce)O3 proton conducting oxides have attracted significant attention due to their excellent proton conductivity at intermediate temperatures (400–600 °C). A high Zr/Ce ratio is crucial for maintaining stability in humid or other harsh atmospheres. Herein, a systematic study was conducted on the phase composition, microstructure, and the resulting hydration ability and electrochemical performance of high Zr/Ce ratio Ba(Zr,Ce)O3 solid solutions with different Y substitution levels (10 at% to 30 at%). In this substitution range, no apparent secondary phase can be found from XRD, leading to a continuous increase in hydration content. A Y-rich phase was observed in SEM for compositions with high levels of Y substitution. The impact of Y on proton conduction was examined using EIS, with particular attention on elucidating the effects of varying amounts of Y on bulk proton conduction. The increase of proton conductivity was primarily due to the increased charge carrier (proton) concentration caused by Y substitution. Different concentrations of Y have little effect on proton mobility, indicating a compromise between different mechanisms such as the Y trapping effect and the nano-percolation effect. Grain boundary proton conduction was discussed combining the TEM-EDS results to explain the space charge layer effect. Mechanical properties and thermo-chemical stability were also considered to pave the way for real applications. |
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| 773 | _ | _ | |a 10.1039/D4CP04384G |0 PERI:(DE-600)1476244-4 |p 885-896 |t Physical chemistry, chemical physics |v 27 |y 2025 |x 1463-9076 |
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