Well‐Dispersed ZIF‐Derived Co,N‐Co‐doped Carbon Nanoframes through Mesoporous‐Silica‐Protected Calcination as Efficient Oxygen Reduction Electrocatalysts
2015; Volume: 28; Issue: 8 Linguagem: Inglês
10.1002/adma.201505045
ISSN1521-4095
AutoresLu Shang, Huijun Yu, Xing Huang, Tong Bian, Run Shi, Yufei Zhao, Geoffrey I. N. Waterhouse, Li‐Zhu Wu, Chen‐Ho Tung, Tierui Zhang,
Tópico(s)Electrochemical Analysis and Applications
ResumoA well-dispersed Co,N co-doped carbon nanoframework (Co,N-CNF) with hierarchically porous structure is successfully synthesized from zeolitic imidazolate framework (ZIF) precursors via a mesoporous-silica-protected calcination strategy. By preventing the irreversible fusion and aggregation during the high-temperature pyrolysis step with this protection strategy, the Co,N-CNF exhibits comparable oxygen reduction reaction (ORR) catalytic activity to that of commercial Pt catalysts with the same loading.
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