Researchers synthesized a material that speeds up one of the limiting steps in extracting hydrogen from alcohols. The catalyst cleanly and efficiently accelerates the removal of hydrogen atoms from a liquid chemical carrier. The material is robust, made from earth-abundant metals, and will help make hydrogen a viable energy source for a wide range of applications. Read more »
New Insights into Lithium-Metal Surface Reactions for Next-Generation Batteries
In this work, researchers studied how CO2 gas modifies the chemical composition of lithium-metal surfaces. A better understanding of the interactions between lithium and surrounding gases will help design stabilization strategies and move from lithium-ion technology to high-energy-density technologies based on lithium metal. Read more »
Balanced Charge Transport Optimizes Industry‐Relevant Ternary Polymer Solar Cells
In this article, Szymanski et al. develop novel, cost‐effective ternary polymer solar cells printed in semi‐industrial conditions from a relatively benign ink, which do not require any further processing. These solar cells show good stability and efficiency due to balanced charge-carrier mobilities achieved by optimizing the composition and morphology. Read more »
Design and synthesis of high performance flexible and green supercapacitors made of manganese‐dioxide‐decorated alkali lignin
Researchers synthesized a plant‐based composite electrode for use in flexible supercapacitors and used synchrotron x‐ray microtomography to better understand the impact of microstructure and morphology on electrode porosity and electrical conductance. Read more »
Coming Down the Pike: Long-Haul Trucks Powered by Hydrogen Fuel Cells
DOE has announced several major investments to take hydrogen fuel cells to the next level, and Berkeley Lab is set to play a leading role. Ten DOE national labs have been selected to participate in two new consortia and a third continuing one to improve the durability, lifetime, and efficiency of fuel cells. Read more »
Scientists Capture Candid Snapshots of Electrons Harvesting Light at the Atomic Scale
A team of scientists has gained important new insight into electrons’ role in the harvesting of light in gold/TiO2 nanoparticle photoelectrochemical (PEC) systems. The scientists say that their study can help researchers develop more efficient material combinations for the design of high-performance solar fuels devices. Read more »
A Probe of Light-Harvesting Efficiency at the Nanoscale
Using time-resolved experiments at the ALS, researchers found a way to count electrons moving back and forth across a model interface for photoelectrochemical cells. The findings provide real-time, nanoscale insight into the efficiency of nanomaterial catalysts that help turn sunlight and water into fuel through artificial photosynthesis. Read more »
Reversible Room-Temperature Fluoride-Ion Insertion in a Tunnel-Structured Transition Metal Oxide Host
Fluoride ions show promise as charge carriers in batteries but have limited cyclability. Here we show the reversible and homogeneous topochemical insertion/deinsertion and bulk diffusion of F ions within the one-dimensional tunnels of submicrometer-sized FeSb2O4 particles at room temperature. Read more »
A Closer Look at Water-Splitting’s Solar Fuel Potential
Although bismuth vanadate (BiVO4) is a theoretically attractive material for electrodes in photoelectric chemical cells (PECs) used for artificial photosynthesis, it hasn’t lived up to its potential. Researchers used a multimodal approach to gain new insight into what might be happening at the nanoscale to hold BiVO4 back. Read more »
2020 Shirley Award to Honor Miquel Salmeron
By taking surface studies from ultrahigh vacuum to near-ambient pressure, Miquel Salmeron’s work at the ALS has had deep impact on a broad range of scientific questions, revealing the chemical, electronic, and mechanical properties of surfaces and interfaces on the nanometer (and often atomic) scale. Read more »
- « Previous Page
- 1
- …
- 5
- 6
- 7
- 8
- 9
- …
- 15
- Next Page »