报告时间： 2014年6月26日上午8:00

　　报告地点： 能源基础楼会议室 

　　报告人:Prof. Ellen B Stechel  

　　Deputy Director, LightWorks and Professor of Practice, Department of Chemistry and Biochemistry, Arizona State University, USA 　　  

　　报告摘要： 

　　Reversing combustion and recycling carbon dioxide and water back to liquid hydrocarbons is an attractive option for storing solar energy and mitigating the growth of atmospheric CO2 concentrations. For any such process, high solar-to-fuel efficiency and material availability is critical for large scale viability and favorable economics. Thermochemical approaches for solar-to-fuel have the potential to be highly efficient as they avoid inherent limitations of photosynthesis and sidestep the solar-to-electric conversion necessary to drive electrolytic reactions. This presentation highlights progress from a multidisciplinary effort that has been progressing down a technical path for systems, reactors, and materials making liquid hydrocarbon fuels from concentrated sunlight, waste carbon dioxide, and brackish water based on a two-step metal oxide redox cycle motivated to address the dual challenges posed by the strategic and economic importance of petroleum and the increasing concentration of atmospheric carbon dioxide. One take-away message will be that given high enough efficiency (> 10% on a lifecycle basis – sunlight to fuel) energy conversion routes, supplanting a large fraction of global petroleum-derived liquid fuels with synthetic solar-fuels, are challenging but nonetheless possible; indeed they are quite plausible.  

　　Biography  

　　Ellen Stechel is Deputy Director, ASU LightWorks, Professor of Practice in the Department of Chemistry and Biochemistry and Senior Sustainability Scientist in the Global Institute of Sustainability, each at Arizona State University. Ellen started her career at Sandia National Laboratories in 1981. In late 1998, she moved to the Scientific Research Laboratory in Ford Motor Company, where she managed the chemistry and environmental science department. In 2001, she moved into Ford's product development division in new low emissions technology development. In 2005, she re-joined Sandia National Labs on assignment to the Department of Homeland Security in the Science and Technology Division. In 2006, she moved back to Sandia in Albuquerque to manage the materials for energy department, to champion a multi-disciplinary research program in fuels from the sun, and later to manage the Concentrated Solar Technologies Department and DOE's National Solar Thermal Test Facility. In early 2012, she joined the faculty at ASU in her current positions. She received her AB from Oberlin, College in Oberlin, Ohio, USA in Math and Chemistry, her MS in Physical Chemistry and Ph.D. in Chemical Physics from the University of Chicago, Chicago, IL, USA, in 1976 and 1978, respectively, and did postdoctoral research at the University of California Los Angeles in non-linear dynamics and quantum chaos.  

    报告联系人：DNL16 李丹（9005）