Articles tagged with Hydrogen Atoms
The team is developing materials with similar properties to palladium, but cheaper and more readily available, to improve the efficiency of hydrogen fuel cells. The goal is to find a substitute for platinum, which is currently used as a catalyst in PEMs containing platinum.
Hydrogen atoms can simultaneously bond to four or six other atoms, forming highly stable multicenter bonds that explain electronic conductivity in metal oxides. This discovery has significant implications for technological applications and could enable the use of hydrogen as a substitutional dopant in oxides.
Scientists have developed a technique using lasers to strip hydrogen from silicon surfaces, promising to improve the quality of computer chips and solar cells. This method, which can be applied at low temperatures, offers potential applications in the manufacture of faster transistors and more precise control over nanoscale structures.
Researchers have developed a new laser technique that removes hydrogen from silicon surfaces at room temperature, allowing for the growth of silicon devices at lower temperatures. This breakthrough could enable faster and more precise manufacturing of microelectronic devices.
A collaborative study successfully applied neutrons to locate hydrogen atoms in proteins, revealing how water molecules interact with proteins and influencing their function. The research demonstrates potential for understanding hydrogen-atom transfer processes in large biological systems.
Researchers at JILA improved molecular measurement precision, enabling tests of the fine structure constant's evolution over time. This could reveal changes in the strength of electromagnetic interactions.
UCR researchers develop more stable carbene, a family of compounds used in pharmaceuticals and petrochemicals. The new molecule has a unique shape and size, potentially leading to even more powerful catalysts.
A new study at Pacific Northwest National Laboratory reveals a four-step process to produce oxygen in frigid environments, challenging previous models. Oxygen isotopes measured during experiments showed that intermediate species of hydrogen-oxygen permeate the ice film.
Researchers at NIST have achieved a new record in quantum calculation precision, simulating the hydrogen molecule to an unprecedented level of accuracy. By merging two earlier algorithms and utilizing parallel processing, they were able to reach an accuracy of 1 part in 100 billion, outperforming previous experimental values.
Researchers at Brookhaven National Laboratory are working on developing practical hydrogen-storage materials by doping sodium alanate with titanium. The goal is to create a material that can store and release hydrogen efficiently, enabling large-scale energy storage for fuel cells and other applications.
Physicists at Penn State University have developed a new method to study frustration in complex systems, including materials with magnetic moments. The researchers created artificial spin ice using electron beam lithography, allowing them to manipulate the strength of frustrated interactions and probe individual elements within the sys...
Researchers at Ohio State University have calculated the structure of CH5+, a molecule known as 'the scrambler,' which has hyperactive atoms and a unique spectrum. The team's work provides new insights into the molecule's properties and may help astronomers identify its presence in interstellar clouds.
A laboratory method has revealed new data on a mysterious 'floppy' molecule, helping explain its properties and overcoming a decades-old challenge in chemistry. The study combined experiments with theoretical predictions and enabled the analysis of cold, concentrated samples of the molecule.
Researchers have manipulated hydrogen atoms below the surface of a palladium crystal, creating a structure predicted to be important in fuel cells, metal catalysis, and hydrogen storage. This breakthrough allows scientists to test theoretical predictions and apply data from direct observation.
A team of scientists led by Alan E.E. Rogers successfully detected deuterium using a radio telescope array, a significant breakthrough in understanding the universe's origins. The detection has implications for understanding dark matter and cosmic baryon density.
A study by Brookhaven chemists Santanu Chaudhuri and James Muckerman found that adding titanium to aluminum surfaces significantly improves hydrogen absorption, making it suitable for practical applications. This breakthrough enhances the performance of sodium alanate, a complex metal hydride used in hydrogen storage materials.
Scientists have devised a method to more effectively dampen vertical instabilities in tokamak fusion reactors, allowing for improved control of electrical currents and magnetic fields. This development aims to increase the efficiency of fusion reactions and is an important step towards building the next-generation fusion reactor by 2015.
Researchers at Ames Lab investigate solid fuels mimicking methane, ideal for hydrogen production and efficient energy storage. They use mechanochemical processing and nanostructuring to create recharged materials.
Scientists at Ohio State University discovered that bumpy surfaces on interstellar dust grains can explain the formation of molecular hydrogen, the most abundant element in the universe. By simulating different surfaces, researchers found that only bumpy textures enable two hydrogen atoms to bond in space.
A new study suggests that intense light exposure in photovoltaic material a-Si:H leads to undesirable defects by creating silicon dihydride structures. Researchers propose potential solutions, such as adding impurities to block the issue, which could improve solar cell performance and efficiency.
Physicist Gary Zank and his team at UCR will study the heliosphere and interstellar space with the $134-million IBEX mission. The team aims to confirm or refute predictions about the hydrogen wall, a boundary comprised of hydrogen atoms and protons.
Researchers discovered two new aldehyde molecules, propanal and propenal, in an interstellar cloud near the Milky Way Galaxy. These findings provide insights into the formation chemistry of complex molecules in space.
A team led by scientists at Stanford Synchrotron Radiation Laboratory found that water molecules form only two hydrogen bonds instead of the previously believed three or four. This discovery reopens the hunt for the structure of liquid water and could lead to a better understanding of the chemistry of cells.
Researchers found that isoprene emitted by forest vegetation forms hygroscopic compounds affecting cloud formation, rainfall, and climate. The discovery demonstrates a link between isoprene emissions and water-soluble fine particles.
Researchers found that the lifetime of water's OH-stretch vibration increases with temperature, weakening hydrogen bonds and allowing molecules to vibrate longer. The study used ultrafast infrared lasers to measure the number of vibrating molecules, revealing a unique property of water.
Researchers at Penn State have developed a new type of sensor that can detect hydrogen levels with incredible sensitivity. The titania nanotube sensors are 200 times more sensitive than previously used materials and offer several advantages, including high response rates and minimal interference from other gases.
For the first time, researchers have used a transmission electron microscope to image lithium atoms, capturing an arrangement of lithium ions among cobalt and oxygen atoms in the compound lithium cobalt oxide. The One Angstrom Microscope achieved a resolution as high as 0.78 angstrom.
Researchers at Georgia Tech have developed an oxide system that can produce hydrogen from water vapor and methane at lower temperatures, potentially allowing it to be powered by solar energy. This could provide a lower-cost alternative to traditional reforming processes for small-scale fuel cells in homes or vehicles.
Virginia Tech researchers discovered that tert-butoxyl radicals are more reactive than initially thought, making them a poor model for studying oxygen-free radicals in biological systems. This finding challenges previous assumptions about the behavior of these radical species.
Researchers have discovered that protein simulations can be completed in 7 femtoseconds, three times faster than previous methods. This breakthrough enables the efficient calculation of biologically interesting processes such as protein folding.
Astronomers detect ND3, the first molecule with three deuterium atoms, in a molecular cloud at distances of 500 to1000 light-years from Earth. The discovery suggests that gas-phase reactions are responsible for producing molecules in interstellar space.
Researchers at Stanford University and the University of Durham report a surprising observation in a hydrogen-exchange reaction, where a tiny proportion of H2 molecules is flying off in an unexpected direction. This finding suggests more than one mechanism by which H and D2 come together and react.
Researchers at Stanford University study hydrogen atom collision with deuterium molecule, finding product travels in opposite direction than expected. The results suggest a more complex process involving multiple reaction mechanisms.
Researchers at the University of Washington have made significant progress in understanding how hydrogen atoms are transferred between molecules, a key step in creating new compounds. This breakthrough could lead to more efficient manufacturing methods, cleaner product development, and improved chemical reactions.
Astronomers have detected the imprint of neutral atoms on light from a distant quasar, providing a glimpse into the early universe. The observation reveals that complex atoms such as carbon, nitrogen, oxygen, and silicon were formed in the first stars and quasars, constraining the timing of the universe's reionization.
Researchers have simulated silicon nanowires with promising results, predicting changes in electronic states, Schottky barriers, and doping methods that could improve device performance and consistency. The simulations suggest new ways to overcome current technological challenges, including the use of nanoscale clusters as dopants.
Researchers have solved the fundamental problem of scattering in a quantum system of three charged particles, a phenomenon responsible for ionization in atomic physics. They employed exterior complex scaling to obtain accurate solutions using supercomputers, enabling detailed calculations for outgoing states and interactions.
Researchers at the University of Illinois have discovered that tumbling atoms play a crucial role in hydrogen re-forming reactions. The study reveals that hydrogens exchange sites with each other, leading to the formation of new bonds between carbon and metal centers.
A team of Cornell University physicists successfully measured the frequency of atomic vibrations in a single molecule of acetylene, providing a new way to identify and study molecular bonds. This technique, called vibrational microscopy, has potential applications in understanding catalysts and biological molecules like DNA.
Researchers have designed compounds that target Plasmodium falciparum parasites, which cause severe malaria. The new trioxane-based compounds show potential in treating the disease by inducing self-destruction in the parasite, offering a promising alternative to current treatments.
Chemists directly observed how hydrogen atoms behave and bond to surfaces at high temperatures using a scanning tunneling microscope. They found that dangling bonds on the surface unpaired, re-paired multiple times depending on temperature, showing favorable conditions for growing more silicon.
A Duke University theoretical chemist has developed a divide and conquer method to model electronic structures of large molecules with reduced calculations. The technique enables researchers to precisely describe electron interactions, providing a more refined picture of molecule behavior.
Researchers have developed a theory to explain the sudden change of rare earth mirror materials into transparent windows when exposed to hydrogen. This phenomenon has potential applications in smart windows for energy savings.