Unraveling the relationship between Sr stoichiometry in SrxFe1.5Mo0.5O6−σ and its catalytic performance for high-temperature CO2 electrolysis - Xiuan Xi; Xiaoyu Liu; Lingui Huang; Jianwen Liu; Bo-Wen Zhang; Gadi Rothenberg; Xian-Zhu Fu; Jing-Li Luo (Materials Reports: Energy, 2023)