ALMA gets a new hydrogen maser
The Atacama Large Millimeter/submillimeter Array (ALMA) has just received a "heart transplant," high in the Atacama Desert in Northern Chile. ALMA, the most complex astronomical observatory ever built on Earth, installed a new hydrogen maser. This up.....»»
ALMA observations investigate disk and jet of a massive protostar
Astronomers from Italy and Spain have used the Atacama Large Millimeter/submillimeter Array (ALMA) to observe a massive protostar designated IRAS 20126+4104. The observational campaign, detailed in a paper published Dec. 9 on the arXiv preprint serve.....»»
New climate chemistry model finds "non-negligible" impacts of potential hydrogen fuel leakage
As the world looks for ways to stop climate change, much discussion focuses on using hydrogen instead of fossil fuels, which emit climate-warming greenhouse gases (GHGs) when they're burned. The idea is appealing. Burning hydrogen doesn't emit GHGs t.....»»
ALMA observes dusty site of planet formation
The Atacama Large Millimeter/submillimeter Array (ALMA) has successfully observed a site of planet formation by detecting a high concentration of dust grains, a planet-forming material, outside the orbits of just-formed planets......»»
Hydrogen"s dual nature helps reveal hidden catalytic processes
Microorganisms have long used hydrogen as an energy source. To do this, they rely on hydrogenases that contain metals in their catalytic center. In order to use these biocatalysts for hydrogen conversion, researchers are working to understand the cat.....»»
How to catch a supernova explosion before it happens—and what we can learn from it
Stars are born, live and die in spectacular ways, with their deaths marked by one of the biggest known explosions in the universe. Like a campfire needs wood to keep burning, a star relies on nuclear fusion—primarily using hydrogen as fuel—to gen.....»»
Less is more: Why an economical iridium catalyst works so well
Iridium-based catalysts are needed to produce hydrogen using water electrolysis. Now, a team at HZB has shown that the newly developed P2X catalyst, which requires only a quarter of the iridium, is as efficient and stable over time as the best commer.....»»
Study discovers a nano-switch mechanism controlled by a single hydrogen atom in all living organisms
A group of researchers in Japan has revealed, for the first time, a mechanism for controlling the potential of an electron carrier protein in the redox reaction that all organisms need to obtain energy. The study was published in the online edition o.....»»
Stable perovskite catalyst achieves selective oxidation of light alkanes
Light alkanes are relatively simple molecules made entirely of carbon and hydrogen, arranged in linear or branching structures. Their oxidized counterparts, which include alcohols, epoxides, ketones, and aldehydes, are ubiquitous in the chemical indu.....»»
Scientists synthesize unsymmetrical ureas using non-phosgene method
Unsymmetrical ureas can form multiple stable hydrogen bonds with proteins. Since drugs containing urea functional groups display unique biological activities when interacting with their targets, they play an important role in drug development and med.....»»
Planetary scientist proposes an alternative theory for what lies beneath the surfaces of Uranus and Neptune
Diamond rain? Super-ionic water? These are just two proposals that planetary scientists have come up with for what lies beneath the thick, bluish, hydrogen-and-helium atmospheres of Uranus and Neptune, our solar system's unique, but superficially bla.....»»
Spin-powered crystals dramatically improve water splitting process for clean hydrogen production
Water splitting—breaking water molecules into hydrogen and oxygen—is a promising pathway to sustainable energy. However, this process has long been challenged by the slow chemical kinetics of the oxygen evolution reaction that make hydrogen produ.....»»
Exploring new liquid organic hydrogen carrier materials for a safer, more transportable energy source
To reduce CO2 emissions, the energy transition from a carbon-based energy system to a more sustainable system based on hydrogen energy is urgently needed. However, the nature of hydrogen (such as low volumetric density, flammability, and embrittlemen.....»»
Nano-patterned copper oxide sensor provides rapid ultra-low hydrogen detection
Hydrogen is becoming an increasingly popular choice as we shift towards cleaner energy. It can be burned like traditional fuels, producing only water as a byproduct, and can generate electricity when used in fuel cells. However, as hydrogen productio.....»»
Novel magnetic field integration enhances green hydrogen peroxide production
Researchers have achieved a breakthrough in improving the efficiency of an electrochemical reaction that produces hydrogen peroxide—a vital chemical for industrial applications including disinfection, bleaching, and treating sewage. This reaction,.....»»
A strategy of ligand-protected direct hydrogen reduction to prepare bimetallic cluster catalysts
Researchers have developed a ligand-protected direct hydrogen reduction strategy to prepare zeolite-confined Pt-Pd bimetallic cluster catalysts. These catalysts efficiently facilitate hydrogen production from ammonia borane (AB) solvolysis and the ta.....»»
Scientists develop a phase-transformable membrane for efficient gas separation
Industrial gas separation, essential for clean energy and environmental protection, demands efficiency and adaptability. Current materials, however, lack the flexibility to selectively separate gases like carbon dioxide (CO2) and hydrogen (H2) while.....»»
Air quality problems spur $200 million in funds to cut pollution at ports
Diesel equipment will be replaced with hydrogen- or electric-power gear. Raquel Garcia has been fighting for years to clean up the air in her neighborhood southwest of downtown De.....»»
How to build a home radio telescope to detect clouds of hydrogen in the Milky Way
If I ask you to picture a radio telescope, you probably imagine a large dish pointing to the sky, or even an array of dish antennas such as the Very Large Array. What you likely don't imagine is something that resembles a TV dish in your neighbor's b.....»»
A green, scalable synthesis approach addresses the challenges of semiconductor-based photocatalysis
Solar-driven photocatalytic water splitting offers a sustainable route for hydrogen production. Researchers have explored various semiconductors, but challenges like bandgap limitations and carrier recombination persist......»»
Astronomers use JWST and ALMA to explore the structure of a giant spiral galaxy
Using the James Webb Space Telescope (JWST) and the Atacama Large Millimeter/submillimeter Array (ALMA), an international team of astronomers have observed a giant spiral galaxy designated ADF22.A1. Results of the observational campaign, published Oc.....»»