In a first-of-its-kind experiment, ALS researchers demonstrated a new, direct way to study the inner workings of a phenomenon in chemistry known as an “electrochemical double layer” that forms where liquids meet solids—where battery fluid meets an electrode, for example. Read more »
ALS X-Rays Shine a New Light on Catalysis
Recently a team of Stanford and Berkeley Lab researchers used x-rays at the ALS in a novel way to observe the behavior of electrons during technologically important chemical reactions in metal oxide electrocatalysts. What they learned has upended long-held scientific understanding of how these catalysts work. Read more »
ALS Evidence Confirms Combustion Theory
Researchers recently uncovered the first step in the process that transforms gas-phase molecules into solid particles like soot and other carbon-based compounds. It’s a discovery that could help combustion chemists make more efficient, less polluting fuels and help materials scientists fine-tune their carbon nanotubes and graphene sheets for faster, smaller electronics. Read more »
Platinum Nanoclusters Out-Perform Single Crystals
Researchers have found that under high pressure—comparable to the pressures at which many industrial technologies operate—platinum surfaces can change their structure dramatically in response to the presence of high-coverage reactants. Read more »
Reaction-Driven Restructuring of Bimetallic Nanoparticle Catalysts
Researchers have used an ambient-pressure x-ray photoelectron spectroscopy (APXPS) apparatus to demonstrate that bimetallic nanoparticle catalysts can undergo profound structural and chemical changes in response to reactive environments at ambient pressures, thereby opening the way for engineering catalysts with enhanced activity and selectivity. Read more »
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