Researchers at Idaho National Laboratory have discovered how to make 'superalloys' even more super, extending useful life by thousands of hours. The discovery could improve materials performance for electrical generators and nuclear reactors.
A collaboration between Nagoya University and TU Braunschweig finds evidence that when projectiles hit soft clumps of dust or hard clumps of loose glass beads, the scaling laws for energy dissipation and energy transfer are the same in each case. This helps us understand how granular clumps stick together, and how planets are formed.
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving 'magnetic reconnection' -- the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion -- in the Earth's magnetotail, the magnetic environment that trails behind the planet.
A glucose-powered biofuel cell that uses electrodes made from cotton fiber could someday help power implantable medical devices such as pacemakers and sensors. The new fuel cell, which provides twice as much power as conventional biofuel cells, could be paired with batteries or supercapacitors to provide a hybrid power source for the medical devices.
Demand for biofuels to fight climate change clouds the future for biodiversity, says the Executive Secretary of the Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES). The demand could cause a 10- to 30-fold expansion of green energy-related agricultural land use, adding crushing pressure on habitat for plants and animals and undermining the essential diversity of species on Earth. Anne Larigauderie made the remarks at a major UN biodiversity meeting in Egypt.
Scientists at Tokyo Technology produced subnano-sized metallic particles that are very effective as catalysts for the oxidation of hydrocarbons. These catalysts can be as much as 50 times more effective than well-known Au-Pd bimetallic nanocatalysts.
The discovery addresses two challenges prevalent in the developing world: sanitation and growing energy needs. The researchers said the reaction that creates the hydrochar sterilizes the waste material, so it becomes safe to handle. The 'coals' can potentially be utilized for household heating and cooking, while the liquid byproduct (the aqueous phase) could be used as fertilizer.
Dramatically longer-lasting, faster-charging and safer lithium metal batteries may be possible, according to Penn State research, recently published in Nature Energy.
Fuel cells that work with the enzyme hydrogenase are, in principle, just as efficient as those that contain the expensive precious metal platinum as a catalyst. However, the enzymes need an aqueous environment, which makes it difficult for the starting material for the reaction -- hydrogen -- to reach the enzyme-loaded electrode. Researchers solved this problem by combining previously developed concepts for packaging the enzymes with gas diffusion electrode technology.
A new study found that 21 percentof the United States' greenhouse gas pollution (1.2 Pg CO2e year) could be removed through enhanced management of forest, grassland, agricultural, and coastal areas. An offset at this level would be the equivalent to pollution from every single US car and truck on the road.