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In situ spectroscopy as a probe of electrocatalyst performance
Hydrogen fuel cells generally require expensive and scarce platinum catalysts in order to function. Researchers have created highly reactive platinum-nickel nanowires with the potential to reduce the amount of platinum required in fuel cells. Research at PIPOXS examines the atomic-level mechanisms of this catalyst, forming a foundation for the development and commercialization of more efficient fuel cell technology.
ACA honors staff scientist Richard Gillilan
Richard Gillilan, a MacCHESS/CHEXS staff scientist, has been named a member of the 2021 class of Fellows of the American Crystallographic Association (ACA), in recognition of his many career achievements.
Unconventional chiral charge order in kagome superconductor KV3Sb5
Intertwining quantum order and non-trivial topology is at the frontier of condensed matter physics. In a new paper appearing in the journal Nature Materials, a team lead by M. Zahid Hasan from Princeton University reports the discovery of an unconventional chiral charge order in a kagome material, KV3Sb5.
In-Hutch Commissioning of Rotation and Axial Motion System IV (RAMS IV) Load Frame
In spring 2021, the fourth generation of Rotation and Axial Motion System (RAMS IV) load frame was commissioned with X-rays at the Structural Materials Beamline (SMB).
Protein unfolded states populated at high and ambient pressure are similarly compact
This is perhaps the first reported study of the temperature dependence of the dimensions of the high pressure unfolded state of a protein. These measurements strongly support the notion that pressure unfolded proteins do not differ significantly from proteins which are unfolded at atmospheric pressure.
Next-generation detectors ready for experiments at CHESS
Sydor and the Cornell Detector Group worked with CHESS staff and users throughout both the original and commercial development of these new detectors, where CHESS served as a crucial venue for system testing.
Now, Sydor aims to identify a few target user experiments at CHESS where researchers are interested in pushing the detectors to their limits.
CHESS Scientists and Outreach take part in Expanding Your Horizons 2021
Since 1988 the annual Expanding Your Horizons (EYH) conference has been encouraging curious youth to pursue their interests in science, technology, engineering, and maths (STEM). This year three CHESS staff contributed to the virtual event.
Investigation of porosity, texture, and deformation behavior using high energy X-rays during in-situ tensile loading in additively manufactured 316L stainless steel
A high-energy x-ray study of 316L stainless steel produced by laser powder bed fusion used x-ray tomography to understand porosity in the manufactured samples, and then observe the effect of these pores on the evolution of damage, texture, and strain when the materials are mechanically deformed.