He received his bachelor’s degree in physics and his master’s and doctorate degrees in electrical engineering from the University of Washington. His main areas of research are distribution system analysis and power system operations. He is currently a principal research engineer at the Pacific Northwest National Laboratory working at the Battelle Seattle Research Center. He is an adjunct faculty member at Washington State University, an affiliate assistant professor at the University of Washington, and a licensed professional engineer in Washington. He is the past chair of the Distribution System Analysis Sub-Committee and the current secretary of the Analytics Methods for Power Systems Committee (AMPS); formerly known as the Power System Analysis, Computing, and Economics (PSACE) Committee.
He joined Pacific Northwest National Laboratory (PNNL) in 1994 and was promoted to laboratory fellow in 2005. He led the Catalysis and Reaction Engineering Team from 2000 to 2007and served as the associate director of the Institute for Integrated Catalysis (IIC) since 2008. In 2009, he assumed a joint position at Washington State University (WSU) and PNNL. In this position, he continues to be a laboratory fellow and associate director of IIC at PNNL and is the Voiland distinguished professor in chemical engineering at WSU, an endowed full professorship with tenure. He is best known for his leadership in the development of novel catalytic materials and reaction engineering for the conversion of fossil and biomass feedstocks to fuels and chemicals. He has authored 215 peer reviewed publications with more than 13,000 citations, co-edited two books and five special journal issues, and given more than 100 invited presentations. He is the inventor on 251 issued patents, including 97 issued U.S. patents (>90% of his patents are licensed to industries). His discoveries in microchannel reaction technologies led to the formation of Velocys, trading under the London Stock Exchange (VLS). He is a fellow of National Academy of Inventors (NAI), a member of Washington State Academy of Science (WSAS), and a fellow of four major professional societies: American Institute of Chemical Engineers (AIChE), American Society of Chemistry (ACS), Royal Society of Chemistry (RSC), and American Association of the Advancement of Science (AAAS). He has won numerous awards, including 2006 Asian American Engineer of the Year Award, Presidential Green Chemistry Award, three R&D 100 Awards, Distinguished Alumni Achievement Award from Chemical Engineering at WSU, two PNNL Inventor of the Year Awards, Battelle Distinguished Inventor Award, and the first recipient of PNNL Laboratory Director's Award for Exceptional Scientific Achievement Award. He is the past chair of the Energy and Fuel Division of the American Chemical Society and currently serves editorial board of seven catalysis and energy related journals, including ACS Catalysis and Catalysis Today.
She has expertise in adaptive and optimal control, multi-agent systems, artificial intelligence and methods of distributed optimization with strong building and heating, ventilation, and air conditioning (HVAC) system control application experience. At Pacific Northwest National Laboratory, she is responsible for development of advanced control technologies applicable to buildings and HVAC systems, power grid controls, and building to grid interaction.
During his 30-year employment with Battelle, he contributed as an engineer, principal investigator, and project/program manager for projects supported by the U.S. Department of Energy (DOE), Defense Advanced Research Projects Agency (DARPA), and National Aeronautics and Space Administration (NASA), and co-led Pacific Northwest National Laboratory’s (PNNL) internal initiative in Micro- and Meso-channel Process Technology (MMPT). The advantages of MMPT are especially recognized in the chemical engineering profession and led to an international conference (The International Microreaction Technology [IMRET] Conference), which is held on a regular basis on alternating continents. He was one of the original organizers of this conference. He is a Battelle Distinguished Inventor, holding 175 patents (34 U.S. and 141 foreign) with others still pending. His MMPT work received three R&D 100 Awards, including one in 2014 for the Solar Thermochemical Advanced Reactor System (STARS). Also, he was part of a team that received the 2001 National Laboratory Fuel Cell R&D Award from DOE. This body of work led to the development of multiple spin-off companies and the establishment of the joint PNNL-Oregon State University Microproducts Breakthrough Institute in Corvallis, Oregon. He is currently leading efforts at Battelle to develop solar thermochemical hardware and systems that use solar energy to drive moderate- to high-temperature endothermic chemical reactions. Most recently, under his direction, PNNL has advanced the STARS technology to Technology Readiness Level 5 with on-sun demonstrations achieving a peak solar to chemical energy conversion efficiency of 69%, a world record.
He has over 30 years of experience in the materials science field. Since joining Pacific Northwest National Laboratory (PNNL) in 1993, his work focused primarily on the development and characterization of electrical ceramic materials and the development of fabrication techniques for devices based on those materials, including solid oxide fuel cells (SOFC) and gas separation membranes. At present, his primary responsibility is leadership of PNNL’s SOFC materials development activities. In this role, he directs work in several areas, including cathode and anode materials, alloy interconnect materials, protective coatings for alloy interconnects, contact and sealing materials for SOFC stacks, and cost-effective cell fabrication techniques.
He is a laboratory fellow in the Energy Processes and Materials Division at Pacific Northwest National Laboratory (PNNL). He is the principal investigator on PNNL's efforts on Energy Storage for Transportation supported by the U.S. Department of Energy’s Vehicle Technologies Office and PNNL's Transformation Materials Science Initiative. He has 24 years of experience in the development of energy storage devices, including lithium-ion batteries; thin-film, solid-state batteries; Li-S batteries; lithium-air batteries; and electrochromic devices. Prior to joining PNNL in June 2007, he served for 7 years as chief technology officer of Excellatron Solid State LLC in Atlanta, Georgia. His responsibilities at Excellatron included strategic planning, identification of research and development direction, review of all internal programs, funding allocation for internal programs, and oversight of all subcontractor programs. He was also responsible for day-to-day performance of the technical team for development of thin-film lithium batteries and other energy related products. From 1998 to 2000, he served as the director of Product Development at Macro Energy-Tech, Inc. in Redondo Beach, California, where he was responsible for setting up a pilot line for production of polymer lithium-ion batteries. Prior to that, from 1990 to 1998, he was a postdoctoral fellow/staff scientist/senior scientist at the National Renewable Energy Laboratory where he managed several lithium-ion-battery related projects. He holds 17 patents (with another 19 patents pending) and has more than 200 papers published in professional journals.
He is a senior staff scientist and team lead for materials processing within the Applied Materials and Performance Group at Pacific Northwest National Laboratory. His research focus is on the formability, joining, and manufacturing of materials for industrial applications, and in the development of new solid state joining and processing technologies for advanced materials for future energy applications, including vehicle technologies, power generation, hydrocarbon, and chemical transport and processing. He has been researching and developing Friction Stir Welding and Processing at the lab since 1997. He currently leads a portfolio of projects investigating Friction Stir Joining and Processing as a new manufacturing technology and programs in solid-state compaction and processing of new materials for high temperature and high-performance applications. He has over 25 publications on solid state joining and processing, more than 30 years’ experience in the microstructural and mechanical characterization of materials, and in the exploration of process/property relationships.
He is a lighting engineer at Pacific Northwest National Laboratory (PNNL) focusing on the development of LED technology. His emphases are human factors experiments and development of new metrics and test methods, especially for the topics of color, glare, flicker, and long-term performance. He is a member of the Illuminating Engineering Society's (IES) Color Committee and Technical Procedures Committee and also active with the International Commission on Illumination (CIE). Prior to joining PNNL, he earned a doctorate in architectural engineering from Penn State University. He was named a future leader of lighting by LD+A magazine in 2010, has authored over 50 journal articles and government reports, and received the 2013 Taylor Technical Talent Award from the IES for his published work.
He is a manager in the Energy Processes and Materials Division at Pacific Northwest National Laboratory's (PNNL). As a physical and materials chemist with research leadership experience on several clean energy topics at PNNL, he has managed solar energy programs since 2010. He was previously detailed with the U.S. Department of Energy (DOE), including in support of the National Laboratory Task Force of the Secretary of Energy Advisory Board. Prior to that, he served for 7 years as a manager of the Applied Materials Science Group at PNNL where he focused on developing and deploying materials science capabilities in support of the DOE’s energy mission. He received his doctorate in physical chemistry from the University of Chicago.
He joined Pacific Northwest National Laboratory (PNNL) in January 2001 and is currently technical group manager for the Electrochemical Materials and Systems Group. This group is focused on the development of electrochemical materials and systems for advanced energy storage and conversion applications. He is also currently project manager for the U.S. Department of Energy’s Office of Electricity Energy Storage Program at PNNL. This project is focused on the development of electrochemical energy storage technologies to enable renewable integration and to improve grid support. He previously led development efforts in solid oxide fuel cell (SOFC) technology and planar Na batteries. Prior to PNNL, he was a senior ceramic engineer at Litton Life Support and was responsible for the development of prototype advanced electrochemical oxygen generating system. He currently holds 16 U.S. patents on fuel cells, batteries, and high temperature electrochemical devices with 22 pending patent applications. While at PNNL, he was recognized as key contributor on four licensing activities, received a 2009 Federal Laboratory Consortium award for Technology Transfer of Solid Oxide Fuel Cell Technology to Delphi Corporation and was named PNNL Inventor of the Year in 2015.
Since 2013, he has been the director of the Energy Processes and Materials Division within Pacific Northwest National Laboratory's (PNNL) Energy and Environment Directorate. He possesses a strong background in materials synthesis, colloidal and surface science, and high-resolution electron microscopy. He joined PNNL in 1992, became a laboratory fellow in 2000, then initiated and led a broad range of basic and applied research programs in materials science. In 2001, he left PNNL for a position with Lucent Bell Laboratories. Afterward, he joined Sandia National Laboratories serving as manager of the Chemical Synthesis and Nanomaterials Department and as a thrust leader in the Center for Integrated Nanotechnologies. He returned to PNNL in 2005 to head the synthesis task within the catalysis initiative and lead the Transformational Materials Science Initiative, as well as energy storage research. In addition to his division director role, he currently serves as the cross-science lead on the Joint Center for Energy Storage Research, a U.S. Department of Energy Energy Innovation Hub, where PNNL is a partner. He has more than 350 peer reviewed publications and received more than 55 U.S. patents. He was named a Distinguished Inventor of Battelle in 2007 and was selected as PNNL's 2012 Inventor of the Year. He holds a bachelor's degree in chemical engineering from Hunan University, a master's degree in ceramic engineering from the University of Washington, and a doctorate in materials science and engineering from the University of Washington.
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