Zr-Induced Ba capture in double Perovskites: Enhanced oxygen activity and durability for Ceramic cathodes - Wuqiang Yao; Fangjun Jin; Ning Sun; Wenjing Zhang; Xuebing Dai; Yaqiong Guo; Zhen Wang; Yuan Gao; Kun Zheng; Yihan Ling (Fuel, 2026)