热解
电催化剂
碳纳米管
催化作用
材料科学
化学工程
碳纤维
氮气
三聚氰胺
无机化学
石墨
惰性气体
电化学
化学
纳米技术
有机化学
冶金
电极
复合材料
物理化学
工程类
复合数
作者
Ning Cai,Sunwen Xia,Xiong Zhang,Zihan Meng,Pietro Bartocci,Francesco Fantozzi,Yingquan Chen,Hanping Chen,Paul T. Williams,Haiping Yang
出处
期刊:Chemsuschem
[Wiley]
日期:2019-12-28
卷期号:13 (5): 938-944
被引量:58
标识
DOI:10.1002/cssc.201903293
摘要
Abstract A novel method for the preparation of iron‐ and nitrogen‐codoped carbon nanotubes (Fe‐N‐CNTs) is proposed, based on the catalytic pyrolysis of waste plastics. First, carbon nanotubes are produced from pyrolysis of plastic waste over Fe‐Al 2 O 3 ; then, Fe‐CNTs and melamine are heated together in an inert atmosphere. Different co‐pyrolysis temperatures are tested to optimize the electrocatalyst production. A high doping temperature improves the degree of graphite formation and promotes the conversion of nitrogen into a more stable form. Compared with commercial Pt/C, the electrocatalyst obtained from pyrolysis at 850 °C shows remarkable properties, with an onset potential of 0.943 V versus RHE and a half‐wave potential of 0.811 V versus RHE, and even better stability and anti‐poisoning properties. In addition, zinc–air battery tests are performed, and the optimized catalyst exhibits a high maximum power density.
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