The high water flow rates observed in carbon nanotubes (CNTs) have previously been attributed to the unfavorable energetic interaction between the liquid and the graphitic walls of the CNTs. This paper reports molecular dynamics simulations of water flow in carbon, boron nitride, and silicon carbide nanotubes that show the effect of the solid-liquid interactions on the fluid flow. Alongside an ...

The unique chemical, physical and mechanical properties of carbon nanotubes (CNTs) have stimulated extensive investigation since their discovery in the early 1990s (Iijima, 1991). The primary research interests focus on the development of simple and cost effective methods for the synthesis of CNTs. To synthesize single wall carbon nanotubes (SWCNT) and multi wall carbon nanotubes (MWCNT), vario...

The field emission behavior of base-model well-aligned carbon nanotubes (Base-CNTs), curled carbon nanotubes (Curled-CNTs), and tipmodel well-aligned CNTs (Tip-CNTs) was examined. The nanotubes were fabricated by means of direct current plasma-enhanced chemical vapor deposition using different ammonia (NH3) pre-treatment plasma currents. The turn-on electric field values required to obtain a 10...

As an electrical energy storage device, supercapacitor finds attractive applications in consumer electronic products and alternative power source due to its higher energy density, fast discharge/charge time, low level of heating, safety, long-term operation stability, and no disposable parts. This work reviews the recent development of supercapacitor based on carbon nanotubes (CNTs) and their c...

The poor cycling stability of polyaniline (PANI) limits its practical application as a pseudocapacitive material due to the volume change during the charge-discharge procedure. Herein, crosslinked carbon nanotubes/polyaniline (C-CNTs/PANI) composites had been designed by the in situ chemical oxidative polymerization of aniline in the presence of crosslinked carbon nanotubes (C-CNTs), which were...

Carbon nanotubes (CNTs) possess remarkable properties. They are very stiff and very strong, yet ductile. They can be conducting or semiconducting, depending on their chirality. Possible applications of CNTs include diverse areas such as conductive and high strength composites, energy storage and conversion devices, sensors, field emission displays and radiation sources, nanometer sized semicond...

School of Chemistry, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa Email: ‡[email protected]; *[email protected] Carbon nanotubes (CNTs) possess unique properties which make them competitive with conventional catalyst supports. This short review collates fi ndings from many research groups on the benefi ts of palladium/carbon nanotubes in hydrogenat...

Many potential applications of carbon nanotubes (CNTs) require various physicochemical modifications prior to use, suggesting that nanotubes having varied properties may pose risks in ecosystems. A means for estimating bioaccumulation potentials of variously modified CNTs for incorporation in predictive fate models would be highly valuable. An approach commonly used for sparingly soluble organi...

We provide insight into the interaction of boron nitride nanotubes (BNNTs) with cell membranes to better understand their improved biocompatibility compared to carbon nanotubes (CNTs). Contrary to CNTs, no computational studies exist investigating the insertion mechanism and stability of BNNTs in membranes. Our molecular dynamics simulations demonstrate that BNNTs are spontaneously attracted to...

Carbon nanotubes (CNTs) are an unusual, tubular form of carbon, composed of a lattice of carbon hexagons rolled into a tube of nanometer-scale diameter. After the finding of CNTs in 1991 by Iijima on the cathode of an arc-discharge instrument, nanotechnology and nanoscience expanded tremendously. The subsequent discoveries of carbon nanotubes’ unique properties fueled research into all aspects ...