In situ electron microscopy provides atomic-scale insight into the dynamic structure evolution of LaNiO3 perovskite during vacuum heating. This research established a sequential two-step process in the decomposition of LaNiO3 and gives evidence of the diffusion pathway for the lattice oxygen released during the perovskite decomposition. Read more »
All News & Updates
Synthesis of new two-dimensional titanium carbonitride Ti2C0.5N0.5Tx MXene and its performance as an electrode material for sodium-ion battery
Researchers report on the synthesis and characterization of a new 2D carbonitride MXene, Ti2C0.5N0.5. They explore the performance of this new MXene as electrode materials for sodium-ion batteries (SIBs). It outperformed its carbide counterpart (i.e., Ti2C) and all the other reports for multilayer MXenes in SIBs, and it showed a stable electrochemical performance over 500 cycles. Read more »
The three-dimensional construction of leaves is coordinated with water use efficiency in conifers
3D anatomical views of conifer leaves with diverse morphologies, generated using synchrotron microCT imaging (colors show different segmented tissues). Top–bottom: Pinus monticola, P. pungens, and Wollemia nobilis. Image courtesy of Santiago Trueba. Read more »
New Technique Visualizes Every Pigment Cell of Zebrafish in 3D
Researchers developed a new technique that uses x-ray microtomography and silver staining to image every pigment cell of a whole zebrafish in 3D. The method could be used to learn more about the 3D architecture of melanoma tumors and potentially guide treatment decisions. Read more »
New Device Advances Commercial Viability of Solar Fuels
A Berkeley Lab research team developed a new artificial photosynthesis device component that exhibits remarkable stability and longevity as it selectively converts sunlight and carbon dioxide into two promising sources of renewable fuels—ethylene and hydrogen. Read more »
Nanoscale Confinement of Photo-Injected Electrons at Hybrid Interfaces
Picosecond time-resolved x-ray photoemission spectroscopy provides real-time electron distributions of donors and acceptors in a prototypical bipyridyl-ZnO hybrid light harvesting system. The measurements show that photo-injected electrons remain localized within the defect-rich surface region of the nanoporous ZnO substrate, revealing a challenge for the extraction of free charge carriers. Read more »
Direct Observation of Surface-Bound Intermediates During Methanol Oxidation on Platinum Under Alkaline Conditions
A comprehensive mechanism for the methanol oxidation reaction (MOR) in alkaline media is presented, and it is shown that the MOR proceeds via two different pathways (via COad or H3C–Oad intermediates). The latter dominates the overall MOR current, suggesting that the H3C–Oad oxidation could be a viable pathway to accelerate the MOR in alkaline systems. Read more »
Unexpected Transformations Reinforce Roman Architectural Concrete
Researchers used the ALS to study binding phases in Roman architectural concrete, revealing reactions and profound transformations that contribute to long-term cohesion and durability. The findings add to our growing understanding of cementing processes in Roman concretes, informing resilient materials of the future. Read more »
On-Site Access Procedures for Foreign Nationals
Foreign nationals who are planning to conduct experiments at the ALS should plan their visits at least two months in advance. The ALS website has the latest information on lead times and documentation required to process site access. Read more »
New UEC Members for 2022
Welcome to Connor Bischak, Sharon Bone, Wendy Gu, Yu He, and Quentin Williams. Thank you to Alex Fraño, Clemens Heske, and Antoine Wojdyla for your service.
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