Key Roles of Initial Calcination Temperature in Accelerating the Performance in Proton Ceramic Fuel Cells via Regulating 3D Microstructure and Electronic Structure oleh Jingzeng Cui, Yuxuan Zhang, Ze Liu, Zhiwei Hu, Han‐Ping Wang, Po‐Yu Cho, Chang‐Yang Kuo, Yi‐Ying Chin, Chien‐Te Chen, Jianqiu Zhu, Jing Zhou, Guntae Kim, Jian‐Qiang Wang, Linjuan Zhang