纳米纤维
碳化
碳纳米纤维
电催化剂
纳米线
化学工程
纳米技术
煅烧
金属有机骨架
碳纤维
材料科学
多孔性
化学
催化作用
碳纳米管
复合数
吸附
电极
复合材料
扫描电子显微镜
电化学
有机化学
物理化学
工程类
作者
Wang Zhang,Zhenyu Wu,Hai‐Long Jiang,Shu‐Hong Yu
摘要
A nanowire-directed templating synthesis of metal-organic framework (MOF) nanofibers has been demonstrated, where ultrathin tellurium nanowires (TeNWs) with excellent dispersivity can act as templates for directed growth and assembly of ZIF-8 nanocrystals (one typical MOF), resulting in the formation of uniform ZIF-8 nanofibers. The as-obtained ZIF-8 nanofibers can be conveniently converted into highly porous doped carbon nanofibers by calcination. Compared with bulk porous carbon by direct carbonization of MOF crystals, these doped carbon nanofibers exhibit complex network structure, hierarchical pores, and high surface area. Further doped by phosphorus species, the co-doped carbon nanofibers exhibit excellent electrocatalytic performance for oxygen reduction reaction, even better than the benchmark Pt/C catalyst.
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