Shi W. – TechConnect Briefs

Pixel Sweeping Technology enabling 3D Printing of Large-Scale Objects with Delicate Details

He R., Shi W., Liu Y., Lehigh University, US

With the recent explosion of the 3D printing market, rapid prototyping of highly customized products has been made possible. Stereolithography based 3D printing is widely used in both industrial and consumer market due to the [...]

Multiscale Modeling and Experimental Study of CO2 Absorption into Ionic Liquid Reverse Micelle

Shi W., Hong L., Kusuma V.A., Hopkinson D.P., National Energy Technology Laboratory, US

Highly viscous solvents for gas absorption will lead to large pumping power requirement and large absorption/desorption tower, resulting in high capital cost. Ionic liquids (ILs) represent such examples even though ILs have been extensively studied [...]

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 [...]