Authors: Yue Zhu, Dongdong Liu, Huijuan Jing, Fei Zhang, Xiaoben Zhang, Shiqing Hu, Liming Zhang, Jingyi Wang, Lixiao Zhang, Wenhao Zhang, Bingjie Pang, Peng Zhang, Fengtao Fan, Jianping Xiao, Wei Liu, Xuefeng Zhu, Weishen Yang
Published: 2022-04-13
Source: Full article
Oxygen activation, including oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), is at the heart of many important energy conversion processes. However, the activation mechanism of Ba-containing perovskite materials is still ambiguous, because of the complex four-electron transfer process on the gas-solid interfaces. Here, we directly observe that BaO and BaO