Efficient surface modification of carbon nanotubes for fabricating high performance CNT based hybrid nanostructures
Artikel i vetenskaplig tidskrift, 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

Författare

Nan Wang

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Santosh Pandit

Chalmers, Biologi och bioteknik, Systembiologi

L. Ye

SHT Smart High-Tech

Michael Edwards

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Venkata Raghu Mokkapati

Chalmers, Biologi och bioteknik, Systembiologi

Murali Murugesan

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Volodymyr Kuzmenko

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Changhong Zhao

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Fredrik Westerlund

Chalmers, Biologi och bioteknik, Kemisk biologi

Ivan Mijakovic

Chalmers, Biologi och bioteknik, Systembiologi

Johan Liu

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Carbon

0008-6223 (ISSN)

Vol. 111 402-410

Ämneskategorier

Energiteknik

Metallurgi och metalliska material

Styrkeområden

Materialvetenskap

DOI

10.1016/j.carbon.2016.10.027

Mer information

Senast uppdaterat

2018-09-21