AI Article Synopsis
- A novel technique is introduced for creating iron- and nitrogen-codoped carbon nanotubes (Fe-N-CNTs) through a process that involves catalytic pyrolysis of waste plastics.
- The method involves first producing carbon nanotubes from plastic waste using Fe-Al O and then heating these nanotubes with melamine to enhance their properties.
- The electrocatalyst produced at 850 °C demonstrates superior performance compared to commercial Pt/C, with impressive electric potential and stability, and is tested successfully in zinc-air batteries for high power output.
Article 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 O ; 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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| http://dx.doi.org/10.1002/cssc.201903293 | DOI Listing |
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