Ru‐Modulated High‐Entropy Spinel Oxides Enable Efficient and Selective Electrochemical Nitrate Reduction to Ammonia. - Ma, Zunfei; Zhang, Shuo; Tian, Hua; Zheng, Chaoqun; Guo, Mengru; Yang, Yuanrong; Wang, Tianyu; Wang, Feng; Sui, Lina; Dong, Lifeng; Yu, Liyan (Advanced Functional Materials, 2026)