Design of cobalt catalysed carbon nanotubes in bimetallic zeolitic imidazolate frameworks

Hamzeh Qutaish, Jaewoo Lee, Yuhwan Hyeon, Sang A. Han, In Hwan Lee, Yoon Uk Heo, Dongmok Whang, Janghyuk Moon, Min Sik Park, Jung Ho Kim

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

Carbon nanotubes are the most effective way to enhance electrical conductivity between particles, although the growth mechanism in zeolitic imidazolate frameworks still remains elusive. According to our density functional theory calculations and experimental studies, the role of cobalt nanoparticles as catalysts was proved to induce graphitization during pyrolysis. In particular, the sizes and exposed facets of the Co particles play an important role in triggering a hierarchical carbon nanotubes. This work paves the way to control the growth of carbon nanotubes toward various applications.

Original languageEnglish
Article number149134
JournalApplied Surface Science
Volume547
DOIs
Publication statusPublished - 1 May 2021

Keywords

  • Carbon nanotube
  • Cobalt catalyst
  • Electrical conductivity
  • Nanoporous carbon architecture
  • Zeolitic imidazolate framework

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