Graphitic Nanocup Architectures for Advanced Nanotechnology Applications

Abstract

The synthesis of controllable hollow graphitic architectures can engender revolutionary changes in nanotechnology. Here, we present the synthesis, processing, and possible applications of low aspect ratio hollow graphitic nanoscale architectures that can be precisely engineered into morphologies of (1) continuous carbon nanocups, (2) branched carbon nanocups, and (3) carbon nanotubes–carbon nanocups hybrid films. These complex graphitic nanocup-architectures could be fabricated by using a highly designed short anodized alumina oxide nanochannels, followed by a thermal chemical vapor deposition of carbon. The highly porous film of nanocups is mechanically flexible, highly conductive, and optically transparent, making the film attractive for various applications such as multifunctional and high-performance electrodes for energy storage devices, nanoscale containers for nanogram quantities of materials, and nanometrology.

Overview of Engineering Carbon Nanomaterials Such As Carbon Nanotubes (CNTs), Carbon Nanofibers (CNFs), Graphene and Nanodiamonds and Other Carbon Allotropes inside Porous Anodic Alumina (PAA) Templates

“…Highly dense-packed nanostructured arrays are of great interest for the next generation of energy storage devices. Recently, a very interesting and exhaustive review paper was reported by Kim et al [ 248 ] summarizing the synthesis and processing of a variety of carbon nanostructures and demonstrations of their potential applications such as flexible and transparent super-capacitors [ 249 ], high-performance supercapacitors [ 250 ], and nano-containers [ 251 ]. The review article highlights that energy conversion and storage devices, thanks to the PAA versatility to precisely tailor low aspect-ratio structures compatible with carbon nano-architectures using a CVD process due to their excellent features such as high transparency, flexibility, regularity, and large specific surface area.…”