High-temperature reconstruction of carbon nanotubes with iron impurities as built-in catalysts for potent electrical-conductive additives in supercapacitor electrodes

Keyang Li; Yunfeng Feng; Qi Zhang; Yiqing Guo; Jianing Gan; Yilun Huang; Menghao Yang; Ming Zhao; Daming Zhuang; Qianming Gong

doi:10.1039/D5CC05120G

High-temperature reconstruction of carbon nanotubes with iron impurities as built-in catalysts for potent electrical-conductive additives in supercapacitor electrodes

Keyang Li,

†^ab Yunfeng Feng,†^ac Qi Zhang,^a Yiqing Guo,^d Jianing Gan,^a Yilun Huang,*^e Menghao Yang,

*^f Ming Zhao,^a Daming Zhuang

^a and Qianming Gong

*^a

Author affiliations

* Corresponding authors

^a Key Laboratory for Advanced Materials Processing Technology, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China

^b School of Materials Science and Engineering, Peking University, Beijing 100871, P. R. China

^c School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, China

^d School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100084, P. R. China

^e SINOPEC Beijing Research Institute of Chemical Industry, Beijing 100013, P. R. China

^f School of Materials Science and Engineering, Tongji University, Shanghai 201804, P. R. China

Abstract

This study reconstructs CNTs at 3000 °C with trace iron impurities as built-in catalysts to enhance their graphitization degree and dispersity. Superior capacitance and cycling stability are obtained while applying the resulting CNTs as conductive additives in supercapacitor electrodes, offering a promising strategy for the fabrication of conductive carbon materials.

Chemical Communications

High-temperature reconstruction of carbon nanotubes with iron impurities as built-in catalysts for potent electrical-conductive additives in supercapacitor electrodes

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High-temperature reconstruction of carbon nanotubes with iron impurities as built-in catalysts for potent electrical-conductive additives in supercapacitor electrodes

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