Elad Gross (right), of the Chemical Sciences Division, working at the Advanced Light Source with Dean Toste (left) and Kavli Energy NanoSciences Institute member Gabor Somorjai, demonstrated the first technique that allows the catalytic reactivity inside a microreactor to be mapped in high resolution from start-to-finish. Through a combination of in situ infrared micro-spectroscopy and in situ x-ray absorption microspectroscopy, the technique provides a better understanding of the chemistry behind the catalytic reactions and may reveal opportunities for optimizing catalytic performances. This holds promise for more effective and efficient synthesis of pharmaceutical drugs and other flow reactor products. Also working on this study were Xing-Zhong Shu, Selim Alayoglu, Hans Bechtel and Michael Martin. More>
Posts Tagged ‘Chemical Sciences Division’
Like the radar guns police use to determine car speed, UC Berkeley professor and Berkeley Lab guest Holger Müller also exploits the physical properties of waves, albeit different ones, in order to measure speeds in the tiny world of atomic physics. His research group is interested in testing and refining modern theories of gravity and quantum mechanics, and in pioneering new experimental techniques to do so. Like our law enforcers, these researchers cannot glance at the speedometers of, say, cesium atoms. Instead, they expand the limits of precision measurement using a family of techniques known as atom interferometry. More>
Postdoctoral work seven years ago has led to a research project that brings together Berkeley Lab’s Chemical Sciences Division, Clemson University and UC Berkeley. The project seeks to gain a better understanding of transuranic elements and how they will behave in response to different environmental factors. The results could help inform decision makers about how best to store used nuclear fuel. The idea for the research was hatched seven years ago, while Brian Powell of Clemson (pictured) was working for now collaborator, Linfeng Rao of Berkeley Lab, who is an expert in actinide thermodynamic studies and calorimetry measurements. More>
The American Association for the Advancement of Science (AAAS) has named its 2013 fellows, and three Berkeley Lab researchers are among the recipients. The awardees include Stephen Cramer (left) of the Physical Biosciences Division, Norman Edelstein (center) of the Chemical Sciences Division, and retiree Glen Lambertson of the Accelerator and Fusion Research Division. Former Berkeley Lab earth scientist Terry Hazen (now at Oakridge Lab) was also included. More>
Rich Saykally of the Chemical Sciences Division and David Pendergrast of the Molecular Foundry, working at the Advanced Light Source, have shown that in water as in love, likes can attract. Using a combination of X-ray spectroscopy, liquid microjets and first principles’ theory, and backed by the computational resources of NERSC, Saykally and Pendergrast demonstrated that, when hydrated in water, positively charged ions can actually pair up with one another. These results, obtained at ALS Beamline 8.0.1, may represent a new paradigm for aqueous solutions in which like charges attract. Also working on this study were Orion Shih, Alice England, Gregory Dallinger, Jacob Smith, Kaitlin Duffey and Ronald Cohen. More>
Chris Jones, Editor-in-Chief of ACS Catalysis, meets with Berkeley Lab chemical scientist John Hartwig, winner of the 2013 ACS Catalysis Lectureship for the Advancement of Catalytic Science. Hartwig discusses the award and his career and achievements in catalysis research.
The American Chemical Society (ACS), the world’s largest scientific society, annually administers national awards to encourage the advancement of chemical research. Four Lab scientists have been recognized for awards in 2014: Lab director Paul Alivisatos won the ACS Award in the Chemistry of Materials, Robert Bergman (Chemical Sciences) the George A. Olah Award in Hydrocarbon or Petroleum Chemistry, Don Tilley (Chemical Sciences) the ACS Award for Distinguished Service in the Advancement of Inorganic Chemistry, and Evan Williams (Earth Sciences) the Frank H. Field & Joe L. Franklin Award for Outstanding Achievement in Mass Spectrometry. All of these recipients will be honored at the awards ceremony in conjunction with the 247th ACS National Meeting in Dallas in March.
The Glenn T. Seaborg Center of the Chemical Sciences Division will host Helmut Schwarz, professor of chemistry at Technische Universität Berlin and president of the Alexander von Humboldt Foundation, this Thursday. Schwarz will give a presentation, “Methane Activation: Fundamental Aspects and Concepts Rather than Recipes,” at 1:30 p.m. in the Building 50 Auditorium. Schwarz has pioneered state-of-the-art gas-phase experiments in conjunction with electronic structure calculations to identify elementary reactions at a molecular level, unraveling detailed mechanistic features. All are welcome to attend.
The Lab’s world-renowned researchers are sought out by the media for their expertise on a variety of topics. Recently, earth scientist Ernest Majer (left) was quoted in the San Jose Mercury News on the link between geothermal energy and earthquakes, chemical scientist David Shuh (center) participated in a Public Radio International (PRI) piece on the use of rare earth element dysprosium — recently discovered in Alaska — in hybrid cars, and materials scientists Uli Dahmen was included in a Nature story on the noise barrier that may limit increased resolution for electron microscopes. Send e-mail here to receive weekly updates on media placements, or to apprise Public Affairs of media coverage of your research.
Berkeley Lab chemist Christopher Chang and his research group at UC Berkeley have developed a series of fluorescent probes for molecular imaging of copper in the brain. Metal copper has chemical properties that make it essential to a healthy brain. “As a consequence of its high demand for oxygen and oxidative metabolism, the brain has among the highest levels of copper, as well as iron and zinc in the body,” says Chang. More>