Room 4016, Engineering Building
University of Wyoming
College of Engineering and Applied Science
Department of Chemical & Petroleum Engineering
1000 E. University Avenue
Laramie, WY 82071
Phone: (307) 766-3592
Postdoctoral Fellow, Chemical and Biological Engineering, University of Colorado at Boulder, 2003-2005
Ph.D. Chemical and Biological Engineering, University of Colorado at Boulder, 2003
M.S. Chemical Engineering, Tianjin University, 1997
B.S. Chemical Engineering, Shandong University (formerly Shandong University of Technology), 1994
Adjunct Assistant Professor University of Wyoming 2010-2011
Sr. New Product Development Engineer DRC Metrigraphics 2007-2008
Sr. Process Engineer Intel Corporation 2006-2007
Areas of Research Activity:
Description of Research Activities:
Built upon years of academic and industrial background and experience, my research focuses on catalytic, functional membrane, thin film and coating material development with applications spanning liquid filtration, gas processing and biomedical sensors. New approaches to implementing catalyst and surface chemistry within membranes and at functional surfaces offer alternative solutions to existing separation and surface science problems, while allowing us to study them in a different context. As such, my long-term research goal is to develop new catalytic membranes and thin films that are self-cleaning or self-defending against fouling (in liquid separation) or poisoning (gas separation).
Existing and proposed projects in our group include:
1. Integrated accelerated precipitation softening (APS) - microfiltration (MF) assembly and process development to maximize water recovery during energy production and CO2 sequestration
Although reverse osmosis (RO) has been extensively used to treat a variety of source waters, including energy development produced water, managing the concentrate that is produced as a byproduct during RO has persisted as an environmental and economic challenge in maximizing water recovery rate. The APS-MF assembly will help reduce the volume of concentrate during the RO process, maximizing water recovery rate.
2. Fuel cell catalysts and materials studies via atomic layer deposition (ALD)
Fuel cells convert chemical energy into electricity and produce water or pure CO2 as by-products, which consequently allow high efficiency conversion as well as minimal pollutants (if any at all) due to the removal of moving parts (contrary to combustion engine). Although pure hydrogen is the ultimate fuel type for proton exchange membrane fuel cells (PEMFC), natural gas and syngas can also be used for PEMFC as long as a compact membrane separation assembly is used to separate H2 from other gases. For other fuel cell types, such as molten carbonate fuel cells, various carbon based biomass fuel can be used as the fuel. My research interests include using ALD to study non-precious metal catalysts in PEMFC devices in order to reduce cost and advanced anti-corrosion coating material development for molten carbonate cell devices to increase their durability and efficiency.
3. Catalytic sulfur-resistant composite membrane development for natural gas and syngas processing
This project focuses on creating a composite membrane by implementing lanthanide oxysulfide nanoparticles into metal membranes, thus providing sulfur tolerant membranes for natural gas and syngas processing. Although there are recent literature data on either the synthesis of sulfur-resistant catalysts or lanthanide oxysulfide nanoparticles, combination of these two techniques has not been realized. The development of a sulfur-resistant composite membrane will help understand how the recently discovered lanthanide oxysulfide catalysts can be optimally implemented into hydrogen separation membranes in order to create sulfur resistant composite membranes.