Headline: Putting the brakes on lithium-ion batteries to prevent fires
■ Release Date: 2022.11.14
■ Published by: American Chemical Society
■ Keywords: lithium-ion, battery, electrons
■ Abstract:
Lithium-ion (Li-ion) batteries are used to power everything from smart watches to electric vehicles, thanks to the large amounts of energy they can store in small spaces. When overheated, however, they're prone to catching fire or even exploding. But recent research offers a possible solution with a new technology that can swiftly put the brakes on a Li-ion battery, shutting it down when it gets too hot.
Headline: How photoelectrodes change in contact with water
■ Release Date: 2022.11.14
■ Published by: Helmholtz-Zentrum Berlin für Materialien und Energie
■ Keywords: solar, hydrogen, photoelectrode
■ Abstract:
Every green leaf is able to convert solar energy into chemical energy, storing it in chemical compounds. However, an important sub-process of photosynthesis can already be technically imitated -- solar hydrogen production: Sunlight generates a current in a so-called photoelectrode that can be used to split water molecules. This produces hydrogen, a versatile fuel that stores solar energy in chemical form and can release it when needed.
Headline: A chemical reaction as good as gold
■ Release Date: 2022.11.15
■ Published by: ARC Centre of Excellence in Future Low-Energy Electronics Technologies
■ Keywords: gold, carbon-based, atoms
■ Abstract:
A new study finds gold atoms could be key to unlocking organic (carbon-based) reactions, potential building blocks in constructing materials with electronic properties useful in energy-efficient future technologies. Atomic-scale materials control revealed that the addition of a single gold atom allowed controlled reactions of the target organic molecules.
Headline: New discoveries made about a promising solar cell material, thanks to new microscope
■ Release Date: 2022.11.15
■ Published by: DOE/Ames Laboratory
■ Keywords: solar, cell, perovskite
■ Abstract:
A team of scientists has developed a new characterization tool that allowed the scientists to gain unique insight into a possible alternative material for solar cells.
Headline: Understanding a cerium quirk could help advance grid-scale energy storage
■ Release Date: 2022.11.15
■ Published by: University of Michigan
■ Keywords: cerium, flow batteries, electrolyte
■ Abstract:
An explanation for why flow batteries using the metal cerium in a sulfuric acid electrolyte fall short on voltage could pave the way for better battery chemistry.
Headline: How fine bubbles lead to more efficient catalysts
■ Release Date: 2022.11.17
■ Published by: Forschungszentrum Juelich
■ Keywords: catalysts, hydrogen, bubbles
■ Abstract:
Catalysts are of utmost relevance for the production of chemicals and energy storage with hydrogen. Researchers have now discovered that the formation of bubbles in the pores of a catalyst can be essential for its activity. Their findings help to optimize catalyst materials for reactions in which gases are formed from liquids -- and which play a central role in a future green hydrogen economy.
Headline: Scientists combine existing technologies to build new ultrafast electron microscope
■ Release Date: 2022.11.17
■ Published by: Nagoya University
■ Keywords: photocathode, microscope, nanomaterials
■ Abstract:
Scientists are developing an ultrafast electron microscope using a semiconductor photocathode and a general-purpose electron microscope.
Headline: Analysis of MRI contrast agents
■ Release Date: 2022.11.17
■ Published by: Rice University
■ Keywords: gadolinium, magnetic interactions, contrast agents
■ Abstract:
Simulations reveal details about the magnetic interactions between gadolinium contrast agents used in MRI scans and their environment.
Headline: Ceramic coatings can suddenly break, but they do not fatigue
■ Release Date: 2022.11.17
■ Published by: Vienna University of Technology
■ Keywords: ceramic, coatings, material fatigue
■ Abstract:
What determines the stabillity of thin ceramic coatings, which are often used to increase the stability of turbines or extremely stressed tools? New experiments show: Surprisingly, these coatings do not show any material fatigue. If their load limit is exceeded, they break. But up until this point, these materials do not change at all.
Headline: Trial by wind: Testing the heat resistance of carbon fiber-reinforced ultra-high-temperature ceramic matrix composites
■ Release Date: 2022.11.17
■ Published by: Tokyo University of Science
■ Keywords: carbon fiber, ceramic, diborides
■ Abstract:
Carbon fiber-reinforced ultra-high-temperature ceramic (UHTC) matrix composites are extensively used in space shuttles and high-speed vehicles. However, these composites suffer from a lack of oxidation resistance. Recently, researchers tested the heat resistance of these composites at very high temperatures, providing insight into the modifications needed to prevent UHTC degradation. Their findings could have huge implications for the manufacture of space shuttle orbiters.
