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METHODS FOR FABRICATING NANOSTRUCTURED SOLID OXIDE FUEL CELL COMPONENTS AND THE DEVICE

Detailed Technology Description

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*Abstract

Abstract of US Patent 7,090,891 - Method for fabricating nanostructured solid oxide fuel cells and cell components: A method of fabricating a nanostructured solid oxide fuel cell includes dispersing ceria and doped ceria nanoparticles in a first colloidal solution, atomizing the first colloidal solution into a spray, depositing the spray onto a substrate to form a thin film electrolyte, dispersing a nanocomposite powder including ceria and CuO in the first solution, forming a second colloidal solution, atomizing the second colloidal solution into a second spray, and depositing the second spray over the thin film electrolyte as an interfacial layer.Non-confidential Abstract of Invention: Nanostructured solid oxide fuel cells, in which at least one component was in the nanometer scale (from 4nm to 100nm), was fabricated. A method was developed to prepare the transparent colloidal solution of CeO2 and doped CeO2; a method was developed to directly fabricate doped CeO2 and CuO nanocomposites at a low temperature(<200°C), which was used as the anodes in nanostructured SOFC; a method was developed to fabricate cathode component with a controllable average particle size in the range from 8nm to 100nm; and a method was developed to fabricate thin interfacial layers or thin electrolytes from the colloidal solutions, with a thickness from 100nm to 10?m and an average grain size from 10nm to 5?m.

*Principal Investigator

Name: Xiao-Dong Zhou, Research Scientist

Department:

Name: Harlan Anderson, Curator's Professor Emeritus of Ceramic Engineering

Department:

Name: Wayne Huebner, Department Chairman and Professor of Ceramic Engineering

Department:

Country/Region

USA