Method for making carbon nanotube-loaded electrode, carbon nanotube-loaded electrode made by the method, and applications thereof

摘要

The present invention provides a method for fabricating a carbon nanotube-loaded electrode enabling that hybrid carbon nanotubes comprising dendrimer-encapsulated metal nanoparticles covalently immobilized on carbon nanotubes via a first covalent bond are made and such hybrid carbon nanotubes are then covalently immobilized on a metal electrode coated with a self-assembled monolayer via a second covalent bond. Also provided is a carbon nanotube-loaded electrode made by the method. The electrode thus made possesses high durability, reactivity and stability.

主权项

1. A method for fabricating a carbon nanotube-loaded electrode, comprising
(a) providing metal nanoparticles-encapsulated dendrimer having a first functional group and carbon nanotubes having a second functional group, wherein the metal nanoparticles-encapsulated dendrimer is prepared by reducing a metal precursor in a condition allowing synthesis of metal nanoparticles in the presence of a dendrimer molecule having amine terminal groups, in which the metal precursor and the amine terminal groups of the dendrimer molecule are present at a molar ratio of being 0.5:1 or less, (b) reacting the metal nanoparticles-encapsulated dendrimer with the carbon nanotubes to form a first covalent bond between the first functional group of the metal nanoparticles-encapsulated dendrimer and the second functional group of the carbon nanotubes in the presence of a first condensing agent so as to produce hybrid carbon nanotubes having a third functional group; (c) providing a metal electrode coated with a self-assembled monolayer (SAM) having a fourth functional group; and (d) reacting the hybrid carbon nanotubes with the metal electrode to form a second covalent bond between the third functional group of the hybrid carbon nanotubes and the fourth functional group of the metal electrode in the presence of a second condensing agent so as to produce the carbon nanotube-loaded electrode.