Engineering Energy Level of FeN4 Sites via Dual‐Atom Site Construction Toward Efficient Oxygen Reduction (Small 12/2023)

作者：Luo Zhaoyan; Li Xianliang; Zhou Tingyi; Guan Yi; Luo Jing; Zhang Lei; Sun Xueliang; He Chuanxin; Zhang Qianling; Li Yongliang; Ren Xiangzhong

来源：Small, 2023, 19(12).

DOI：10.1002/smll.202370079

• d‐band electronic energy
• M/N/C catalysts
• metal–air batteries
• non‐bonding single‐atom pairs
• oxygen reduction

Efficient Oxygen Reduction(#br)In article number 2205283, Lei Zhang, Xueliang Sun, Xiangzhong Ren, and co‐workers leverage single‐atom Fe‐N‐C as a model system and report an adjacent Ru‐N4 moiety modulation effect to optimize the catalyst's electronic configuration and oxygen reduction reaction (ORR) performance. The resultant FeN4/RuN4 catalyst shows excellent ORR performance with a halfwave potential of 0.958 V and a high kinetic current density of 28.57 mA cm?2, which significantly surpasses that of commercial Pt/C.