Articles tagged with Hydrogen
A new study tracks deuterium in raindrops to better understand the Earth's water cycle and its changes due to global warming. The researchers shed light on how regional climate conditions impact deuterium excess.
A team of researchers using the Five-hundred-meter Aperture Spherical Telescope (FAST) has discovered a massive atomic gas structure, approximately 2 million light years in length, surrounding the compact group of galaxies Stephan's Quintet. This finding challenges current theories on galaxy-group formation and evolution.
Researchers at Helmholtz-Zentrum Berlin for Materials and Energy are utilizing X-ray absorption spectroscopy to investigate oxygen evolution in electrocatalysis. This study aims to improve the efficiency of green hydrogen production by developing more stable and cost-effective catalysts.
Researchers developed a new analytical instrument using an ultrafast laser to measure hydrogen concentration and temperature, advancing greener hydrogen-based fuel studies. The instrument's capabilities will help develop more environmentally friendly propulsion engines.
A high-precision experiment reveals that protons and neutrons in small nuclei prefer to pair up with others of the same kind more often than expected. The study provides new details about short-distance interactions between particles and may impact results from experiments seeking to tease out further nuclear structure details.
Researchers at Institute of Physics, Chinese Academy of Sciences have discovered new hafnium polyhydrides exhibiting superconductivity above 80K, a temperature threshold previously unattained by any 5d transition metal hydride. The study reveals these compounds display high critical fields and Ginzburg-Landau superconducting coherent l...
A team of astronomers has developed a novel way to observe the first stars and galaxies, detecting light through the fog of the early Universe. The Square Kilometre Array will likely make images of the earliest light, but current telescopes struggle to detect the cosmological signal through hydrogen clouds.
Scientists have discovered calcium polyhydrides that become superconductive with critical transition temperatures above 210K at high pressures. The findings suggest prospects for these superconductors in various applications.
Researchers at KAUST have developed a new class of oriented mixed-matrix metal-organic framework (MMMOF) membrane that selectively removes detrimental gases like H2S and CO2 from natural gas. The membrane demonstrates far better separation efficiency compared to conventional methods.
Researchers at Ural Federal University have synthesized a proton conductor with high electrical conductivity, which could become the basis for solid oxide fuel cells. The new material is potentially cost-effective and exhibits higher electrical conductivity than other solid-state conductors.
Researchers at North Carolina State University have developed a new technique for extracting hydrogen gas from liquid carriers, making it faster, less expensive and more energy efficient. The new method uses sunlight and a reusable photocatalyst to release hydrogen molecules, reducing the need for rhodium and lowering production costs.
Researchers at Institute of Physics Chinese Academy have discovered new zirconium polyhydrides that exhibit superconductivity with a high transition temperature (Tc) of ~71 K. The compounds can be synthesized under high pressure conditions and may lead to the discovery of new superconducting materials.
Researchers from Tokyo Tech developed an alumina-supported iron-based catalyst that efficiently converts CO2 into formic acid with up to 90% selectivity. The new catalyst's excellent recyclability and low-cost nature make it a promising candidate for reducing atmospheric CO2 levels and providing energy via combustion.
A joint research team investigated the generation of low-energy protons in dissociative ionization of H2 using time-energy-resolved spectroscopy. They found that low-energy protons are produced via dipole-transition at large bond lengths, contrary to the expected bond-softening scenario.
Researchers have developed organic sulfonamides as a flexible and stable material for proton battery cathodes, achieving higher output voltages than conventional cathodes. The new material is also easy to manufacture, stable under standard conditions, and non-toxic.
Researchers at NIMS and JASRI have developed Er(Ho)Co2-based magnetic cooling alloys for efficient hydrogen liquefaction. The materials show excellent cyclic durability and can be used to develop a high-performance magnetic refrigeration system.
Researchers at Stanford University and University of Mannheim find that integrated reversible power-to-gas systems can provide backup electricity during surging prices, reducing costs and increasing capacity utilization. The technology has the potential to link the electricity and hydrogen markets, making renewable energy more viable.
Researchers at Oak Ridge National Laboratory have developed AquaBOT to measure water quality in mid-sized streams with precision and speed. The lab has also created a safe and effective antiviral coating for N95 masks, allowing for reuse of masks made from various fabrics. Furthermore, the lab has designed a cooking appliance that uses...
A research team led by Chris Arges developed a simplified process to separate and compress hydrogen from gas mixtures, achieving high recovery rates. The new method uses an electrochemical hydrogen pump with newly developed membrane materials, operating at high temperatures and improving efficiency.
Researchers at FAU have developed a sensor that can make invisible hydrogen gas visible to the naked eye, using supraparticles that change color when exposed to hydrogen. The innovative sensor has the potential to increase safety in handling hydrogen and is suitable for real-time leak detection and monitoring.
The Indian Institute of Science (IISc) has developed a paper-based sensor that can detect tiny volumes of hydrogen peroxide using UV light. The intensity of the light emitted is directly proportional to the concentration of hydrogen peroxide, making it possible to visualize the emission with the naked eye.
Researchers recreated conditions expected in Mars' core billions of years ago and found that molten metal gave rise to a brief magnetic field. This led to the evaporation of water vapor and eventual loss of Martian oceans about 4 billion years ago.
Cornell University chemists have developed a class of nonprecious metal derivatives that can efficiently power cars and generate electricity with minimal greenhouse gas emissions. The breakthrough could enable wider deployment of hydrogen fuel cells, replacing combustion engines and reducing waste.
Researchers at the University of Delaware have developed a novel electrochemical system that can capture 99% of carbon dioxide from air, effectively turning it into an environmentally friendly fuel cell technology. The technology uses hydrogen as power and has potential applications in various industries, including automotive, aerospac...
A research team at PNNL has developed a system that converts waste carbon from sewage, food crops, and algae into fuels while removing impurities. The electrocatalytic oxidation fuel recovery system generates hydrogen to power its own operation, making it potentially carbon-neutral.
Researchers from Waseda University have developed an alternative technique, sampled current voltammetry (SCV), to accurately determine the activity of electrocatalysts used in water-splitting reactions. The study shows that SCV can provide reliable measurements of electrocatalytic performance at constant steady-state applied voltages.
Researchers at Tokyo Institute of Technology have created a hydrogen-rich lanthanum hydride that shows high hydride ion conductivity even at room temperature. The material's unique properties make it an ideal candidate for efficient chemical reactors and energy storage systems.
Researchers at the University of Bonn have developed a new method to introduce heavy hydrogen isotopes into drugs, potentially making them more effective. The technique involves the use of epoxides and a titanium-based catalyst, allowing for precise control over the placement of deuterium atoms.
The study found that applying an electrical potential can stabilize high-temperature superconducting superhydrides at much lower pressures than previously thought. This new method could lead to the creation of new materials with broad applications in consumer and industrial sectors.
Scientists study potential for life around M-dwarf planets with new telescope, finding atmospheres may be dried out due to intense radiation. The James Webb Space Telescope can detect gases in heavy carbon dioxide or oxygen-dominated atmospheres.
China's space transportation systems have made significant leaps in recent decades, with advancements in launch vehicles, propulsion systems, and artificial intelligence. The country aims to become a powerful space nation by the mid-21st century, with plans for manned missions to the Moon and Mars.
The Hubble Space Telescope and ALMA have discovered six early, massive galaxies that have run out of hydrogen gas to form stars. These 'dead' galaxies, which appeared in the universe just 20% of its current age, were found using strong gravitational lensing, a technique that amplifies light from distant objects.
Researchers have found compounds based on gold, silver, and copper that can store hydrogen in a stable manner. These 'metal hydride' complexes could be used to store hydrogen for use in vehicles, potentially revolutionizing the production of clean energy.
The Hubble Space Telescope has discovered white dwarfs that burn hydrogen on their surface, slowing down their cooling rate. This finding challenges the conventional view of white dwarfs as inert, slowly cooling stars.
New research from Cornell and Stanford University suggests that 'blue' hydrogen, touted as a clean energy source, may have a larger carbon footprint than burning fossil fuels. The process of making blue hydrogen requires more energy than traditional methods, leading to increased greenhouse gas emissions.
Two new molecules have been found to prevent skin aging after being exposed to ultraviolet light, generating minute amounts of hydrogen sulfide to correct energy production and usage in skin cells. This could pave the way for a new way to protect deeper layers of skin using these compounds.
A new thumb-sized device can diagnose bad breath by sniffing out hydrogen sulfide gas in exhalations, correctly identifying it 86% of the time. The device combines a metal oxide gas sensor with humidity, temperature and pressure sensors.
Researchers from University of Tsukuba have demonstrated successive proton transport mechanism in a material that may be a future source of reliable primary and backup power. The study reveals the chemistry underlying this phenomenon, which has implications for improving fuel cell efficiency and stability.
Researchers found that toxin-adapted fish passed on epigenetic mutations to their freshwater offspring, with an 80% overlap in DNA methylation regions. This study provides evidence for the long-term effects of toxic exposure on epigenetics, with implications for understanding human health and environmental adaptations.
A species of fish, Poecilia mexicana, developed a unique pattern of DNA methylation in response to exposure to toxic hydrogen sulfide. This epigenetic signature was found to be inherited by subsequent generations, even when reared in the absence of high hydrogen sulfide concentrations.
Researchers developed an electrochemical system that converts a greater amount of CO2 into valuable products. The system utilizes captured carbon, water, and electricity to create high-value products like ethylene, with over 70% of CO2 being converted.
Researchers discovered that water can bond strongly with iron under extreme conditions, explaining the presence of significant amounts of hydrogen in the Earth's core. This finding suggests that much of the water that arrived on Earth during its formation might be stored in the core as hydrogen.
Astronomers have discovered a mysterious yellow star that exploded without the typical hydrogen layer, revealing new insights into the violent death throes of massive stars. The discovery challenges current understanding of stellar evolution and suggests that these stars may undergo catastrophic eruptions before exploding.
Researchers used NASA's Hubble Space Telescope to examine the massive star two-and-a-half years before its explosion. The team found that the star lacked its typical hydrogen layer, making it unusually cool before exploding into a supernova.
A new exhaust gas abatement system has been developed to detoxify dangerous gases used in device manufacturing processes. The system uses arc plasma heat source to reduce the amount of energy required for processing, resulting in an energy savings of up to 75%.
Scientists from Tohoku University have developed a new fluorine-free calcium electrolyte that shows improved electrochemical performances. This breakthrough could lead to cost-effective and high-performance rechargeable calcium batteries as an alternative to lithium-ion batteries.
Researchers at University of Chicago and Stanford University propose mechanism for formation and retention of water-dominated atmospheres on hot, rocky exoplanets. The model suggests these planets could have a water-rich atmosphere for long stretches, with some potentially keeping it for billions of years.
Scientists using NASA's Hubble Space Telescope have discovered a distant planet, GJ 1132 b, that may have lost its atmosphere but regained a second one. The team believes the current atmospheric hydrogen is being slowly released through volcanic processes to form a new atmosphere.
Astronomers have discovered a secondary atmosphere on GJ 1132 b, rich in hydrogen and hydrocarbons, which is believed to be replenished by volcanism and tidal heating. The new findings provide insights into the exoplanet's geology and offer a window into its interior.
Researchers studied CO2 fluxes at East Lake in Newberry Volcano, Oregon, and found that the lake's ecosystem is driven by its volcanic inputs. The study suggests that variations in CO2 flux can be used for volcano monitoring, and that East Lake is unlikely to experience catastrophic gas releases.
Researchers at University of Exeter identified a way to rescue mutated muscle cells using novel drugs, providing a possible new treatment for rare childhood illness. The study found that compounds targeting mitochondrial energy production improved muscle function in animal models with Duchenne Muscular Dystrophy.
Researchers used MRI technology to investigate a new strategy for managing sodium levels in hemodialysis patients. Four weeks of low-sodium meals significantly reduced weight gain, thirst, and phosphorus levels in participants.
Researchers have made the first direct measurements of the electronic band and gap of solid hydrogen up to 90 GPa using inelastic X-ray scattering. The study found that the electronic band gap decreased linearly from 10.9 eV to 6.57 eV as pressure increased, with a densification factor of 8.6.
Hydrogen sulfide has been shown to improve cognitive and motor function in mice with Alzheimer's disease by 50%. The compound reversed behavioral outcomes of the disease. Research also revealed a change in enzyme activity that could lead to new therapies.
Researchers from the US, China, and Russia have discovered a novel hydrogen hydrate that forms at room temperature and low pressure. The new form of ice has three water molecules per hydrogen molecule, showing promise for cost-effective hydrogen storage solutions.
Researchers confirm the distance of the most-distant galaxy GN-z11 to 13.4 billion light-years, improving understanding of star and galaxy formation in the early universe. The discovery also reveals an ultraviolet flash associated with a gamma-ray burst, providing insights into cosmic reionization.
Researchers at Osaka University have created thin films of neodymium nickel oxide with an electrical resistance that can change dramatically by controlling the distribution of hydrogen ions. This breakthrough could lead to novel switches and potentially entirely new kinds of computer circuits.
USask researchers found that hydrogen peroxide-based disinfectants can raise airborne levels to 60% of the maximum allowed exposure level. Using soap and water or ventilation methods can mitigate risks, according to expert Tara Kahan.
A novel, one-step process converts sulfur dioxide to pure sulfur at lower temperatures than traditional methods, reducing waste and energy consumption. This breakthrough technology has the potential to replace existing desulfurization methods and significantly improve environmental outcomes.
Researchers have discovered a massive globular cluster in the Andromeda Galaxy with an unusually low metallicity, challenging current theories on GC formation. The cluster's metallicity is nearly three times lower than previously known limits, suggesting that massive clusters could form from pristine gas in the early Universe.