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Producing carbon nanotubes from thermochemical conversion of waste plastics using Ni/ceramic based catalyst

Liu, Xiaotong; Shen, Boxiong; Wu, Zhentao; Parlett, Christopher M.A.; Han, Zhenan; George, Adwek; Yuan, Peng; Patel, Dipesh; Wu, Chunfei


Xiaotong Liu

Boxiong Shen

Zhentao Wu

Christopher M.A. Parlett

Zhenan Han

Adwek George

Peng Yuan

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Dr Dipesh Patel
Lecturer in Chemical Engineering, Director of Postgraduate Recruitment and Admissions

Chunfei Wu


© 2018 As the amount of waste plastic increases, thermo-chemical conversion of plastics provides an economic flexible and environmental friendly method to manage recycled plastics, and generate valuable materials, such as carbon nanotubes (CNTs). The choice of catalysts and reaction parameters are critical to improving the quantity and quality of CNTs production. In this study, a ceramic membrane catalyst (Ni/Al2O3) was studied to control the CNTs growth, with reaction parameters, including catalytic temperature and Ni content investigated. A fixed two-stage reactor was used for thermal pyrolysis of plastic waste, with the resulting CNTs characterized by various techniques including scanning electronic microscopy (SEM), transmitted electronic microscopy (TEM), temperature programmed oxidation (TPO), and X-ray diffraction (XRD). It is observed that different loadings of Ni resulted in the formation of metal particles with various sizes, which in turn governs CNTs production with varying degrees of quantity and quality, with an optimal catalytic temperature at 700 °C.


Liu, X., Shen, B., Wu, Z., Parlett, C. M., Han, Z., George, A., …Wu, C. (2018). Producing carbon nanotubes from thermochemical conversion of waste plastics using Ni/ceramic based catalyst. Chemical engineering science, 192, 882-891.

Journal Article Type Article
Acceptance Date Jul 19, 2018
Online Publication Date Aug 18, 2018
Publication Date Dec 31, 2018
Deposit Date Oct 15, 2018
Publicly Available Date Oct 27, 2022
Journal Chemical Engineering Science
Print ISSN 0009-2509
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 192
Pages 882-891
Keywords Plastics waste; Carbon nanotubes; Ceramic membrane; Nickel; Catalyst
Public URL
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