Researchers found a way to turn single-use plastics (e.g., grocery bags and packaging) into useful liquid fuels, like components of gasoline or diesel, without needing high heat, rare metals, or added chemicals. The work presents a promising pathway to address the global plastic waste crisis, with both environmental and economic advantages. Read more »
ALS Work Using XAS
In x-ray absorption spectroscopy (XAS), the incident x-ray energy is tuned over a range that will excite core-level electrons. Sharp increases in absorption occur at specific energies, characteristic of the absorbing element. The resulting spectra probe the elemental composition as well as the chemical and electronic structure of the material.
Mind-Blowing Materials: Mimicking Neurons for Faster Computing
Researchers used x-ray absorption spectroscopy and resonant inelastic x-ray scattering at the ALS to uncover the atomic-level mechanism of conductance switching for a neuromorphic material that has the potential for energy-efficient computing. Read more »
Understanding the Role of Manganese in Fuel Production Catalysts
Using specialized equipment at the Advanced Light Source (ALS), including a custom-built reaction cell, researchers uncovered the role of manganese in cobalt manganese oxide catalysts used for fuel production. Read more »
4f-Orbital Mixing Increases the Magnetic Susceptibility of Cp’3Eu
The ability to harness the 4f-orbital anisotropies and magnetic susceptibilities of lanthanide elements is key to their application in molecular magnetism, including as molecular qubits and single-molecule magnets. Here, 4f orbital mixing and its impact on the magnetic susceptibility of a trivalent Eu organometallic complex was analyzed experimentally. Read more »
Revealing unprecedented cathode interface behavior in all-solid-state batteries with oxychloride solid electrolytes
This research provides crucial insights into the innovative design of high-performance all-solid-state batteries (ASSLBs) based on the promising lithium tantalum oxychloride (LTOC) solid electrolytes. Read more »
Optical Properties of Individual Tar Balls in the Free Troposphere
Tar balls are found in biomass-burning smoke, and their sunlight-absorption properties are highly uncertain. This study investigates the optical properties of individual tar balls in the free troposphere to better understand their influence on climate. Read more »
HyMARC Aims to Hit Targets for Hydrogen Storage Using X-Ray Science
Understanding how materials absorb and release hydrogen is the focus of the Hydrogen Materials Advanced Research Consortium (HyMARC). At the ALS, the HyMARC Approved Program was recently renewed, underscoring the key role that soft x-ray techniques have played in addressing the challenges of hydrogen storage. Read more »
Case study evaluation of size-resolved molecular composition and phase state of carbonaceous particles in wildfire influenced smoke from the Pacific Northwest
Wildfires are significant sources of carbonaceous particles in the atmosphere. Given the dependence of atmospheric processes on particle physical and molecular properties, the interplay between particle size, phase state and chemical composition is investigated here for aerosols influenced by a 2021 Pacific Northwest wildfire event. Read more »
Electronic transport and polarization-dependent photoresponse in few-layered hafnium trisulfide (HfS3) nanoribbons
We report on the electrical and optoelectronic characterization of field-effect transistor (FET) devices based on few-layered HfS3 nanoribbons. The results support the contention that in the presence of light, the photocarriers include both electrons and holes, enhancing the photocurrent of devices. Read more »
Increasing the Energy Density of Hybrid Supercapacitor Electrodes
Hybrid supercapacitors (HSCs) integrate the merits of batteries with those of supercapacitors. However, the fraction of active material in HSC electrodes has remained too low for commercial requirements. Now, researchers have found a clever way to increase the active-mass ratio to achieve dramatic improvements in key measures. Read more »
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