Inhibiting demetalation of ZnNC via bimetallic CoZn alloy for an efficient and durable oxygen reduction reaction.

• Tác giả: Huan Pang, Ying Tang, Gang Wang, Shouhua Yang, Zhen Yang, Feng Yu
• Ngôn ngữ: eng
• Thông tin xuất bản: United States : Journal of colloid and interface science , 2025
• Bộ sưu tập: NCBI
• ID: 695523

Tóm tắt

Inhibition of demetalation due to electrochemical dissolution of metal active centers is a major challenge for the real-world commercialization of transition metals and nitrogen co-doped carbon (MNC) material catalysts. This research utilized a microchannel reactor to synthesize zeolitic imidazolate framework-8@zeolitic imidazolate framework-67, resulting in a CoZn/ZnNC material produced through a core-shell pyrolysis strategy. Direct synergistic interaction of CoZn alloy nanoparticles and ZnNC improves the activity and durability of the oxygen reduction reaction. In proton-exchange membrane fuel cell tests, the CoZn/ZnNC achieved a peak power density of 380.1 mW/cm