Influence of Gd and Sm Doping on Atomic and Ionic Transport Properties of Novel Nanostructured Ceria-Zirconia Multilayers
EMSL Project ID
6499
Abstract
This project aims to develop the understanding of ionic transport processes in nanostructured materials that may enable the design of new types of electrolyte materials for electrochemical device applications with enhanced ionic conductivity that function well at low temperatures and establish methods to form such materials as a part of the Nano LDRD program. In this proposed work, we will investigate the fundamental scientific issues associated with atomic and ionic transport properties of multilayer, single- and poly-crystalline nano-oxide film structures on suitable substrates. We will also investigate the role of the electronic structure in nanostructures and atomic and ionic transport of dopants in these nanostructures, along with the thermal, chemical and mechanical stability of these structures. This effort takes advantage of our ability to grow and characterize single-crystal, pure and doped multilayer, nanoscale materials, using state-of-the-art capabilities at the Environmental Molecular Sciences Laboratory (EMSL). We will use the specially constructed multilayered materials to establish a broader scientific understanding of the physical and chemical properties along with the atomic and ionic transport properties of these nanostructures. The ultimate goal is to develop a stable, alternating, multilayer, nano-oxide, thin-film structure that will exhibit significantly higher transport properties at low temperatures. Once this is developed, we will focus our efforts on generating this material system with interfaces normal to the substrate.
Project Details
Project type
Exploratory Research
Start Date
2003-12-11
End Date
2006-12-17
Status
Closed
Released Data Link
Team
Principal Investigator
Team Members