Atomic-scale snapshots of a bimetallic nanoparticle catalyst in action have provided insights that could help improve the industrial process by which fuels and chemicals are synthesized from natural gas, coal or plant biomass. A multi-national lab collaboration led by researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) has taken the most detailed look ever at the evolution of platinum/cobalt bimetallic nanoparticles during reactions in oxygen and hydrogen gases. (more…)
Tag Archives: oxygen
Oxygen-16, one of the key elements of life on earth, is produced by a series of reactions inside of red giant stars. Now a team of physicists, including one from North Carolina State University, has revealed how the element’s nuclear shape changes depending on its state, even though other attributes such as spin and parity don’t appear to differ. Their findings may shed light on how oxygen is produced.
Carbon and oxygen are formed when helium burns inside of red giant stars. Carbon-12 forms when three helium-4 nuclei combine in a very specific way (called the triple alpha process), and oxygen-16 is the combination of a carbon-12 and another helium-4 nucleus. (more…)
NASA has received 58 proposals for science and exploration technology instruments to fly aboard the agency’s next Mars rover in 2020, twice the usual number submitted for instrument competitions in the recent past, and an indicator of the extraordinary interest in exploration of the Red Planet.
The agency is beginning a thorough review to determine the best combination of science and exploration technology investigations for the mission and anticipates making final selections in the next five months. (more…)
Splitting water into its components, two parts hydrogen and one part oxygen, is an important first step in achieving carbon-neutral fuels to power our transportation infrastructure – including automobiles and planes.
Now, North Carolina State University researchers and colleagues from the University of North Carolina at Chapel Hill have shown that a specialized coating technique can make certain water-splitting devices more stable and more efficient. Their results are published online in two separate papers in the Proceedings of the National Academy of Sciences. (more…)
When Michigan State University’s Wolfgang Bauer travels past unused farmland in Michigan, he sees untapped energy resources and opportunities for tremendous economic development.
Bauer studies the ways in which renewable energy from animal waste, energy crops like corn or switch grass, and even food waste can be transformed into biogas. He also has researched the effectiveness of biogas power plants and found they can be instrumental in creating clean energy for homes, businesses and transportation. (more…)
Many people use tree ring records to see into the past. But redwoods – the iconic trees that are the world’s tallest living things – have so far proven too erratic in their growth patterns to help with reconstructing historic climate.
A University of Washington researcher has developed a way to use the trees as a window into coastal conditions, using oxygen and carbon atoms in the wood to detect fog and rainfall in previous seasons. (more…)
UD researchers report new discovery in ‘Science’ about manganese in aquatic environments
An often-overlooked form of manganese, an element critical to many life processes, is far more prevalent in ocean environments than previously known, according to a study led by University of Delaware researchers that was published this week in Science.
The discovery alters understanding of the chemistry that moves manganese and other elements, like oxygen and carbon, through the natural world. Manganese is an essential nutrient for most organisms and helps plants produce oxygen during photosynthesis. (more…)
Behind the dazzling variety of shapes and forms found in trees hides a remarkably similar architecture based on fundamental, shared principles, UA ecologists have discovered.
Researchers in the University of Arizona’s department of ecology and evolutionary biology have found that despite differences in appearance, trees across species share remarkably similar architecture and can tell scientists a lot about an entire forest.
Just by looking at a tree’s branching pattern, it turns out, scientists can gather clues about how it functions – for example how much carbon dioxide it exchanges with the atmosphere or how much water transpires through its leaves – regardless of the tree’s shape or species. (more…)