Template Synthesis of Ordered Nanostructured Materials
EMSL Project ID
42304
Abstract
Both porous and anisotropic nanoarchitectures are generated using an array of solution templated growth and post growth modification approaches that invoke chemical control of molecular self-assembly at interfaces. Synthesis strategies are designed based upon a fundamental understanding of coupled formation reactions that drive the self-assembly process and that can be manipulated kinetically by altering reaction rates. Templated growth processes pursued in this research include: hydrothermal dehydration of carbohydrates to form carbon nanospheres; functional hollow carbon spheres using monodisperse silica nano-templates: and, the composites of carbon nanostructures and metal oxides. Materials derived from these solution approaches are characterized with respect to phase composition, homogeneity, structural anisotropy, pore structure and pore interconnectivity, and attendant molecular structure by means of non-conventional magnetic resonance measurements that are complemented by traditional electron microscopy, diffraction, and scattering approaches. Synthesis, characterization, and application of these materials will be supported by DOE BES (materials), DTRA, and PNNL LDRD (materials initiative).
Project Details
Project type
Exploratory Research
Start Date
2010-10-01
End Date
2011-10-03
Status
Closed
Released Data Link
Team
Principal Investigator
Team Members
Related Publications
Oh TK, JY Kim, Y Shin, MH Engelhard, and KS Weil. 2011. "Effects of Tungsten Oxide Addition on the Electrochemical Performance of Nanoscale Tantalum Oxide-Based Electrocatalysts for Proton Exchange Membrane PEM Fuel Cells." Journal of Power Sources 196(15):6099-6103. doi:10.1016/j.jpowsour.2011.03.058