Liu D. – TechConnect Briefs

Epoxy Toughening with Nano-Sized Amphiphilic Block Copolymer Micelles

Liu D., Sue H-J, Thompson Z.J., Bates F.S., Hillmyer M.A., Exponent, Inc., US

A model diglycidyl ether of bisphenol A (DGEBA) epoxy resin was modified with a poly(ethylene-alt-propylene)-b-poly(ethylene oxide) (PEP-PEO) block copolymer to improve fracture toughness. Two distinct nanoscaled morphologies were achieved in the cured systems: spherical micelles [...]

Performance Improvement of Fuel Cell using Platinum Functionalized Aligned Carbon Nanotubes

Liu D., Liu J., Goenaga G., Liu D., Liu J., Texas A&M University-Kingsville, US

Proton exchange membrane fuel cells (PEMFCs) are the energy conversion devices with ultrahigh efficiency, zero emission, and high flexibility of the fuel supplies. This study has optimized growth variables of the aligned carbon nanotubes (ACNT) [...]

Performance Improvement of Fuel Cell using Platinum Functionalized Aligned Carbon Nanotubes

Liu D., Liu J., Goenaga G., Liu D., Liu J., Texas A&M University-Kingsville, US

Proton exchange membrane fuel cells (PEMFCs) are the energy conversion devices with ultrahigh efficiency, zero emission, and high flexibility of the fuel supplies. This study has optimized growth variables of the aligned carbon nanotubes (ACNT) [...]

High lithium ion storage capacity of CO annealed titania nanotube arrays

Liu D., Zhang Y., Cao G., University of Washington, US

Highly ordered titania nanotube (TNT) arrays were fabricated by anodic oxidation of titanium foil followed by CO annealing. The lithium-ion intercalation capacities of the as-prepared sample was studied and found to be improved a lot [...]

High lithium ion storage capacity of CO annealed titania nanotube arrays

Liu D., Zhang Y., Cao G., University of Washington, US

Highly ordered titania nanotube (TNT) arrays were fabricated by anodic oxidation of titanium foil followed by CO annealing. The lithium-ion intercalation capacities of the as-prepared sample was studied and found to be improved a lot [...]

Simulation and Optimization of Colloidal Micropumps

Liu D., Maxey M., Karniadakis G., Brown University, US

A fast algorithm for particulate microflows has been used to simulate the 3D micro-colloidal pumps tested in the experiments conducted by Terray et al. The Force-Coupling Method and a penalty method were implemented in a [...]