Chopra N. – TechConnect Briefs

Copper Oxide–Cobalt Oxide Nanoscale Heterostructures for Photocatalysis

Shi W., Chopra N., The University of Alabama, US

The research work discussed here will be focused on development of multifunctional nanoscale heterostructured photocatalysts comprised of oxides of copper and cobalt. Two fabrication approaches are described: a) solution and b) dry processing route. The [...]

Carbon nanotubes-metal nanoparticle heterostructures embedded within stimuli-responsive hydrogel for controlled delivery applications

Shi W., Venkatanarayanan A., Chopra N., The University of Alabama, US

In this work we report a novel hybrid hydrogel by embedded complex carbon nanotube-metal nanoparticle architectures within a hydrogel network. This leads to a novel triggering mechanism for release of multiple chemical species at controlled [...]

Copper Oxide–Cobalt Oxide Nanoscale Heterostructures for Photocatalysis

Shi W., Chopra N., The University of Alabama, US

The research work discussed here will be focused on development of multifunctional nanoscale heterostructured photocatalysts comprised of oxides of copper and cobalt. Two fabrication approaches are described: a) solution and b) dry processing route. The [...]

Gold Nanoparticles Encapsulated within Graphene Shells

Shi W., Chopra N., The University of Alabama, US

We report here a novel approach to fabricate graphene shell encapsulated Au nanoparticles in a chemical vapor deposition process. In addition, processing parameters were studied to result in best quality non-turbostratic graphene shells. This system [...]

Formation of Ni/NiO core/shell nanostructures and their attachment on carbon nanotubes

Chopra N., Claypoole L., Bachas L.G., University of Alabama, US

We report a facile wet synthesis method coupled with microwave irradiation to successfully control the morphology of Ni/NiO core/shell nanoparticles. Furthermore, we report for the first time, microwave-based synthesis of hollow NiO nanostructures from Ni [...]

Gated Chemical Transport and Enhance Flow through Carbon Nanotube Membranes

Majumder M., Chopra N., Hinds B.J., University of KY, US

A promising architecture for ion-channel mimetics is a composite membrane structure containing vertically aligned carbon nanotubes, with inner core diameters of 7 nm, passing across a polystyrene matrix film. Plasma oxidation during the fabrication process [...]