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High Surface Area Nanocrystalline SiC Material Analysis


EMSL Project ID
18398

Abstract

Nanocrytalline SiC materials with high surface areas have a wide range of applications in catalysts, high temperature gas separation, semiconductors, high temperature sensors and electrodes, particularly under high temperatures (>500ºC) and corrosive environments. Recently, we synthesized high surface SiC materials from bio-based precursors. These materials show very interesting catalytic activity for high temperature H2 production and high stability under the high temperature and corrosive conditions. However, some of these materials show relatively low stability even with the same crystalline structure and the same synthesis procedures.
We are interested in the relationships between the stability and the chemical and physical nature of the SiC.
We would like to perform XRD and BET analysis to determine the crystalline purity and surface area changes during the reaction. TEM studies will be very useful for the investigation of the morphology change of SiC before and after the reaction tests. XPS is carried out to the surface characteristics. Elemental analysis and TGA also give us the information about the change of chemical composition during the reactions. The characterization results generated will allow us to publish several papers in this area.

Project Details

Project type
Exploratory Research
Start Date
2006-03-08
End Date
2007-03-12
Status
Closed

Team

Principal Investigator

Daniel Ginosar
Institution
Idaho National Laboratory

Team Members

Daniel Howe
Institution
Pacific Northwest National Laboratory

Jianli Hu
Institution
Pacific Northwest National Laboratory

Ja Hun Kwak
Institution
Ulsan National Institute of Science and Technology

Yong Wang
Institution
Washington State University