Issue 20, 2023

Upcycling of plastic waste into carbon nanotubes as efficient battery additives

Abstract

Carbon nanotubes (CNTs) were produced from waste face masks and non-recyclable mixed plastic waste via pyrolysis-chemical vapor deposition (CVD). The yield and properties of the prepared CNTs depended on the feedstock and catalyst used. CoMo/MgO and FeMo/MgO were proven suitable catalysts for producing few-walled and multi-walled CNTs, respectively, regardless of the feedstock. Both mask waste and the FeMo/MgO catalyst led to excellent carbon yield (516.7 wt%) and CNT purity (97.9 wt%). The resulting CNTs were mixed with LiNi0.8Co0.1Mn0.1O2 (NCM811) active material and poly(vinylidene fluoride) binder to fabricate cathodes. Electrochemical measurements showed that CNTs grown on the FeMo/MgO catalyst outperformed commercial carbon black and CNTs. C1–C3 hydrocarbons and H2 present in the plastic pyrolysis gas can be directly used for CNT production without gas separation or purification, therefore, the proposed pyrolysis-CVD process is favorable for efficient plastic upcycling and advanced battery applications.

Graphical abstract: Upcycling of plastic waste into carbon nanotubes as efficient battery additives

Supplementary files

Article information

Article type
Paper
Submitted
14 6 2023
Accepted
01 9 2023
First published
11 9 2023

Green Chem., 2023,25, 8007-8018

Upcycling of plastic waste into carbon nanotubes as efficient battery additives

E. Nam, G. Park, J. Y. Nam, S. Park, Y. Jo, J. Kim, B. G. Park, K. Baek, S. J. Kang, H. W. Ra, Y. Park, M. W. Seo, K. J. Lee and K. An, Green Chem., 2023, 25, 8007 DOI: 10.1039/D3GC02100A

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