CST Chemistry Update Fall 2014

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College of Science and Technology

Chemistry UPDATE

College of Science and Technology

CHAIR’S MESSAGE 2013-14 was an outstanding academic year for faculty recruiting. Katherine Willets joined the department at the associate level with tenure. Professor Willets is an expert in nanoparticle plasmonics, SERS and super-resolution imaging, and received tenure at the University of Texas at Austin. Sarah Wengryniuk (Scripps) and Graham Dobereiner (MIT) also joined the department at the assistant professor level with expertise in chemical biology and organometallic synthesis, respectively. In 2013, Professor Ronald Levy joined the department bringing his world-class biophysics research to Temple from Rutgers as well as directing the Center for Biophysics and Computational Biology. Several of our faculty members, including Ann Valentine, Michael Zdilla, Spiridoula Matsika, William Wuest and Michael Klein earned prestigious awards for their research efforts. Graduate students and undergraduates also were recognized, including three chemistry students earning highly competitive NSF Graduate Research Fellowship Program grants. Groundbreaking research in energy, materials science, medicinal chemistry, nanoscience, photonics, sensing, and chemical biology bolstered our scientific output with more than 140 papers in 2013. Sponsored research funding broke our record with awards from NSF, NIH, ARL, DOE, AFOSR, ONR, DTRA and DARPA, as well as the recently awarded DOE Energy Frontier Research Center grant of $12 million over 4 years. The new Science Education and Research Center has dedicated research and teaching spaces for our faculty and students, as well as access to SERC’s advanced Materials Research Institute Instrumentation Facility. Chemistry graduates continue to find success in the job market and in prestigious graduate programs. Financial contributions to the department from alumni and friends continue to increase. Thank you for supporting the Department of Chemistry. Sincerely,

Robert Levis Professor and Chair, Department of Chemistry

LOOK INSIDE: NSF Fellowship . . . . . . . . . 2 New Faculty . . . . . . . . . . . 2 Faculty Awards . . . . . . . . . 2 Department of Chemistry Funded Research . . . . . . . 3 Science Education and Research Center Grand Opening . . . . . . . . . . . . . . 4 All Alumni Chemistry Reunion . . . . . . . . . . . . . . . 4

FALL 2014

Developing a way to make lithium batteries safer, cheaper Lithium ion batteries, central to powering most modern technology, are potentially dangerous—the liquid electrolytes used in the manufacturing of those batteries Stephanie Wunder Michael Zdilla can be volatile. Now, two CST chemists have developed a way of creating a solid electrolyte that might reduce the battery’s volatility without decreasing its conductivity or increasing its costs. “There have been quite a few thrusts toward making lithium batteries safer, and one of them is to make everything in the battery a solid,” said Professor of Chemistry Stephanie Wunder, who is collaborating with Assistant Professor of Chemistry Michael Zdilla. “But in general, solids are less conductive.” Zdilla’s lab has developed a new, solid electrolyte matrix by dissolving organic liquids with lithium salts—like table salt but with lithium instead of sodium ions. Both materials are similar to those currently used in lithium ion batteries. A non-polar solvent is then added. “They are the same inexpensive materials that are going into lithium batteries right now,” he noted. “We found a new organic matrix that seemed to have extremely good low-temperature conductivity,” Wunder said. Though the matrix currently decomposes above room temperature, the researchers placed it in dry ice (-78 C). It held the same ability for conductivity as it did at room temperature. “I’m not aware of any material, solid or liquid, that has ever behaved like that for ion conduction at low temperatures,” Zdilla said. “This technology could be valuable for battery performance in extremely cold temperatures like space, the deep sea, the Arctic or Antarctica. Even in some more temperate places, it still gets cold enough that regular batteries do not perform well.” The researchers are confident the technology—once the material is stabilized above room temperature—has the potential to make lithium ion batteries better and safer.


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