Efficient surface modification of carbon nanotubes for fabricating high performance CNT based hybrid nanostructures
Journal article, 2017

Carbon nanotubes (CNTs) were chemically modified to achieve strong binding strength with the attached functional components as well as good dispersability and nanoparticle size-uniformity. An efficient multi-oxidation process was developed to create porous out layer with many nanoscale defects on the surface of CNTs for metallic nanoparticle close attachment and bond sufficient oxygen-containing groups, which assisted the dispersion of CNTs in the aqueous solution. The surface modified CNTs have advantages of strong binding capability, large surface area, high mechanical strength and good dispersability, which show great potential as building blocks for hybrid nanomaterials. Monodispersed silver nano particles with an average size of 3 nm were formed from inside the created nanoscale defects on the surface of CNTs without any obvious agglomerations. The fabricated hybrid exhibited much enhanced anti-bacterial performance compared to commercial silver nanoparticles due to the combined antibacterial effects of CNTs and silver nanoparticles. With these superior properties, the developed surface modification process could be widely used for improving the performances of many CNT based hybrid nanomaterials in diverse applications.

metal

silver nanoparticles

shape

Chemistry

v513-14

crostructure and processing

decoration

p247

energy-storage

antibacterial activity

Materials Science

Author

Nan Wang

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Santosh Pandit

Chalmers, Biology and Biological Engineering, Systems and Synthetic Biology

L. Ye

SHT Smart High-Tech

Michael Edwards

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Venkata Raghu Mokkapati

Chalmers, Biology and Biological Engineering, Systems and Synthetic Biology

Murali Murugesan

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Volodymyr Kuzmenko

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Changhong Zhao

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Fredrik Westerlund

Chalmers, Biology and Biological Engineering, Chemical Biology

Ivan Mijakovic

Chalmers, Biology and Biological Engineering, Systems and Synthetic Biology

Johan Liu

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Carbon

0008-6223 (ISSN)

Vol. 111 402-410

Subject Categories

Energy Engineering

Metallurgy and Metallic Materials

Areas of Advance

Materials Science

DOI

10.1016/j.carbon.2016.10.027

More information

Latest update

9/21/2018