High Electronic Conductivity and Air Stability of Ultrasmall Copper-Metal Nanoparticles Supported on Pyridine-Based Polybenzimidazole Carbon Nanotube Composite

Inas H. Hafez, Mohamed R. Berber, Tsuyohiko Fujigaya, Naotoshi Nakashima

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The development of synthetic methods of copper nanoparticles (Cu-NPs) on conductive supports is very challenging and receives much attention. Here, we describe a novel technique to grow stable and uniform metallic Cu-NPs homogeneously on the surface of pristine multiwalled carbon nanotube (MWNTs) catalyst support physically functionalized with a pyridine-based polybenzimidazole (PyPBI) polymer that acts as a ligand to capture the Cu-NPs. Cu-metal nanoparticles with a particle size of 5.0±0.5 nm were obtained on the surface of MWNTs with homogenous and uniform distribution. The newly prepared Cu-NPs show a remarkably enhanced air stability and electrical conductivity, compared to the current state of the art Cu-NPs, over 20 days and 500 potential cycles, respectively, with a limited degradation rate of Cu-metallic state. The PyPBI polymer plays an essential role in the stability of Cu-NPs on the surface of MWNTs through coordination with PyPBI, suppressing the Cu-degradation process, which usually decreases the Cu application efficiency. Accordingly, the prospects of applications of the present Cu-NPs composite are excellent.

Original languageEnglish
Pages (from-to)4282-4286
Number of pages5
JournalChemCatChem
Volume9
Issue number22
DOIs
Publication statusPublished - Nov 23 2017

Fingerprint

polybenzimidazole
Carbon Nanotubes
Metal nanoparticles
Pyridine
Copper
Carbon nanotubes
pyridines
carbon nanotubes
copper
conductivity
nanoparticles
composite materials
air
Polymers
Composite materials
Air
electronics
metals
degradation
Degradation

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

High Electronic Conductivity and Air Stability of Ultrasmall Copper-Metal Nanoparticles Supported on Pyridine-Based Polybenzimidazole Carbon Nanotube Composite. / Hafez, Inas H.; Berber, Mohamed R.; Fujigaya, Tsuyohiko; Nakashima, Naotoshi.

In: ChemCatChem, Vol. 9, No. 22, 23.11.2017, p. 4282-4286.

Research output: Contribution to journalArticle

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