Ontology highlight
ABSTRACT:
SUBMITTER: Li M
PROVIDER: S-EPMC5216129 | biostudies-literature | 2017 Jan
REPOSITORIES: biostudies-literature
Li Mengran M Zhao Mingwen M Li Feng F Zhou Wei W Peterson Vanessa K VK Xu Xiaoyong X Shao Zongping Z Gentle Ian I Zhu Zhonghua Z
Nature communications 20170103
The slow activity of cathode materials is one of the most significant barriers to realizing the operation of solid oxide fuel cells below 500 °C. Here we report a niobium and tantalum co-substituted perovskite SrCo<sub>0.8</sub>Nb<sub>0.1</sub>Ta<sub>0.1</sub>O<sub>3-δ</sub> as a cathode, which exhibits high electroactivity. This cathode has an area-specific polarization resistance as low as ∼0.16 and ∼0.68 Ω cm<sup>2</sup> in a symmetrical cell and peak power densities of 1.2 and 0.7 W cm<sup>- ...[more]