Upcycling of plastic waste into carbon nanotubes as efficient battery additives

Eonu Nam, Gyori Park, Ji Young Nam, Sooryun Park, Yoonjeong Jo, Jihun Kim, Byung Gwan Park, Kyungeun Baek, Seok Ju Kang, Ho Won Ra, Youngsoo Park, Myung Won Seo, Kyung Jin Lee, Kwangjin An

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

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.

Original languageEnglish
Pages (from-to)8007-8018
Number of pages12
JournalGreen Chemistry
Volume25
Issue number20
DOIs
StatePublished - 11 Sep 2023

Fingerprint

Dive into the research topics of 'Upcycling of plastic waste into carbon nanotubes as efficient battery additives'. Together they form a unique fingerprint.

Cite this