Abstract
We demonstrate the fabrication of an all-carbon electrode by plasma-enhanced chemical vapor deposition for use in flexible electrochemical applications. The electrode is composed of vertically aligned carbon nanotubes that are grown directly on a flexible graphite foil. Being all-carbon, the simple fabrication process and the excellent electrochemical characteristics present an approach through which high-performance, highly-stable and cost-effective electrochemical applications can be achieved.
Highlights
Due to its ability to graphitize, and its presence in different types of powders, fibers, fabrics and other composites, carbon represents a very attractive material for electrochemical applications [1,2], especially biosensors and energy storage devices [3,4]
We developed a new conducting and flexible, all-carbon electrode consisting of carbon nanotubes (CNTs) on graphite foil with nano-scaled carbon structures for use in highly sensitive electrochemical devices
The fabrication of the flexible all-carbon electrode is depicted in Figure 1 Initially, a nickel catalyst film with 60-nm thickness was deposited on a 0.125-mm-thick graphite foil (Good fellow Corp., Coraopolis, PA, USA) by radio frequency (RF) magnetron sputtering using a nickel target of purity
Summary
Due to its ability to graphitize, and its presence in different types of powders, fibers, fabrics and other composites, carbon represents a very attractive material for electrochemical applications [1,2], especially biosensors and energy storage devices [3,4]. Carbon nanotubes (CNTs) have outstanding properties such as excellent electrical and thermal conductivity, and large surface area They are attractive candidates for electrodes in electrochemical devices and other applications such as wiring [5], heat dissipation [6], and field electron emitters [7]. Another interesting carbon material, graphite, has useful characteristics such as a relatively simple fabrication process, cost effectiveness and mechanical flexibility due to the sheet-like hexagonal lattice arrangement of its carbon atoms [8]. It reveals the nanostructures of the CNTs and their measured electrochemical and mechanical properties
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