Influence of Ni on carbon nanotube production with Fe-based catalysts

Shashank Shekhar; Komal Tripathi; Amir Karton; Shantanu Roy; Rakesh Joshi; Kamal Kishore Pant

doi:10.1039/d4cc05698a

Influence of Ni on carbon nanotube production with Fe-based catalysts

Chem Commun (Camb). 2025 Jan 10. doi: 10.1039/d4cc05698a. Online ahead of print.

Authors

Shashank Shekhar¹, Komal Tripathi², Amir Karton³, Shantanu Roy^{1

4}, Rakesh Joshi⁵, Kamal Kishore Pant^{1

2}

Affiliations

¹ Department of Chemical Engineering, IIT Delhi, New Delhi-110016, India. [email protected].
² Department of Chemical Engineering, IIT Roorkee, Roorkee-247667, India.
³ School of Science and Technology, University of New England, Armidale, NSW 2351, Australia.
⁴ Indian Institute of Technology Delhi - Abu Dhabi Zayed City, Abu Dhabi, United Arab Emirates. [email protected].
⁵ School of Materials Science and Engineering, University of New South Wales, Sydney, Australia. [email protected].

PMID: 39790004
DOI: 10.1039/d4cc05698a

Abstract

This study investigates the role of Ni in CNT production using Fe-based catalysts. Among the various catalysts used, such as 40Fe-0Ni, 40Fe-1Ni, 40Fe-3Ni, 40Fe-5Ni, 40Fe-7Ni, and 40Fe-10Ni, the 40Fe-5Ni catalyst achieved a notable yield of 5.80 gC per g metal, which is higher than the 1.03 gC per g metal obtained with the pure Fe catalyst. DFT study reveals that Fe₃Ni exhibits stronger carbon binding, enabling more efficient CNT production and supporting our experimental results.