Wiley_small
Volume 21
Issue 41
October 16, 2025
Anion Sublattice Engineering via Fluorine Doping to Enhance δ-Bi2O3 Stability for Low-Temperature Solid Oxide Electrochemical Cells (Small 41/2025)
Solid Oxide Electrochemical Cells
In article number 2503922, Incheol Jeong, WooChul Jung, Kang Taek Lee, and co-workers present the groundbreaking discovery to stabilize δ-Bi2O3-based oxygen ionic conductors via F− doping. The phase instability of δ-Bi2O3 was effectively suppressed at lower temperatures by modulating the anion sublattice through F− incorporation, thereby retaining its superionic conductivity. Furthermore, F−-doped Bi2O3 was applied to solid oxide electrochemical cells, enabling highly efficient and stable operation.
- Donghun Lee
- Hyunseung Kim
- Seung Jin Jeong
- Hyeongmin Yu
- Incheol Jeong
- WooChul Jung
- Kang Taek Lee
https://onlinelibrary.wiley.com/toc/16136829/2025/21/41
Image created by minjeong Kim / Nanosphere
Wiley_small
Volume 21
Issue 41
October 16, 2025
Anion Sublattice Engineering via Fluorine Doping to Enhance δ-Bi2O3 Stability for Low-Temperature Solid Oxide Electrochemical Cells (Small 41/2025)
Solid Oxide Electrochemical Cells
In article number 2503922, Incheol Jeong, WooChul Jung, Kang Taek Lee, and co-workers present the groundbreaking discovery to stabilize δ-Bi2O3-based oxygen ionic conductors via F− doping. The phase instability of δ-Bi2O3 was effectively suppressed at lower temperatures by modulating the anion sublattice through F− incorporation, thereby retaining its superionic conductivity. Furthermore, F−-doped Bi2O3 was applied to solid oxide electrochemical cells, enabling highly efficient and stable operation.
https://onlinelibrary.wiley.com/toc/16136829/2025/21/41
Image created by minjeong Kim / Nanosphere