@article{Fu2024, 
author = {Min Fu and Wenjing Hu and Hua Tong and Xin Ling and Linggui Tan and Fanglin Chen and Zetian Tao},
title = {Sn-doped cobalt containing perovskite as the air electrode for highly active and durable reversible protonic ceramic electrochemical cells},
year = {2024},
journal = {Journal of Advanced Ceramics},
volume = {13},
number = {1},
pages = {63-72},
keywords = {catalytic, triple conducting oxide, dual-element doping, protonic ceramic electrochemical cells (PCECs)},
url = {https://www.sciopen.com/article/10.26599/JAC.2024.9220836},
doi = {10.26599/JAC.2024.9220836},
abstract = {One potential solution to the problems of energy storage and conversion is the use of reversible protonic ceramic electrochemical cells (R-PCEC), which are based on the solid oxide fuel cell (SOFC) technology and offer a flexible route to the generation of renewable fuels. However, the R-PCEC development faces a range of significant challenges, including slow oxygen reaction kinetics, inadequate durability, and poor round-trip efficiency resulting from the inadequacy of an air electrode. To address these issues, we report novel B-sites doped Pr0.5Ba0.5Co0.7Fe0.3O3−δ (PBCF) with varying amounts of Sn as the air electrode for R-PCEC to further enhance electrochemical performance at lower temperatures. At 600 ℃, R-PCEC with an air electrode consisting of Pr0.5Ba0.5Co0.7Fe0.25Sn0.05O3+δ has achieved peak power density of 1.12 W∙cm−2 in the fuel cell mode and current density of 1.79 A∙cm−2 in the electrolysis mode at a voltage of 1.3 V. Moreover, R-PCECs have shown good stability in the electrolysis mode of 100 h. This study presents a practical method for developing durable high-performance air electrodes for R-PCECs.}
}