期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 16, 期 18, 页码 8320-8331出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cp00856a
关键词
-
资金
- European Commission Capacities Area - Research Infrastructures Initiative [228398]
- Science Foundation Ireland [12/IA/1414, 08/RFP/MTR1044]
- Government of Ireland
- Science Foundation Ireland (SFI) [08/RFP/MTR1044, 12/IA/1414] Funding Source: Science Foundation Ireland (SFI)
Ceria (CeO2) co-doping has been suggested as a means to achieve ionic conductivities that are significantly higher than those in singly doped systems. Rekindled interest in this topic over the last decade has given rise to claims of much improved performance. The present study makes use of computer simulations to investigate the bulk ionic conductivity of rare earth (RE) doped ceria, where RE = Sc, Gd, Sm, Nd and La. The results from the singly doped systems are compared to those from ceria co-doped with Nd/Sm and Sc/La. The pattern that emerges from the conductivity data is consistent with the dominance of local lattice strains from individual defects, rather than the synergistic co-doping effect reported recently, and as a result, no enhancement in the conductivity of co-doped samples is observed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据