MIT chemists have devised a way to trap carbon dioxide and transform it into useful organic compounds, using a simple metal complex.
Chimpzilla's Radeon R9 290 and 290X review copies appear to be performing better than retail versions.
The quest to harness hydrogen as the clean-burning fuel of the future demands the perfect catalysts—nanoscale machines that enhance chemical reactions. Scientists must tweak atomic structures to achieve an optimum balance of reactivity, durability, and industrial-scale synthesis. In an emerging catalysis frontier, scientists also seek nanoparticles tolerant to carbon monoxide, a poisoning impurity in hydrogen derived from natural gas. This impure fuel—40 percent less expensive than the pure hydrogen produced from water—remains largely untapped.
A discovery at the University of Wisconsin-Madison may represent a significant advance in the quest to create a "hydrogen economy" that would use this abundant element to store and transfer energy.
Researchers have calculated that it should be perfectly possible to grow a perfect, meter-long single-walled carbon nanotube 50,000 times thinner than a human hair.
It's a chicken-and-egg problem that's concerned biologists for decades: how did the basic biochemicals of life appear before the biological catalysts needed to form them had come into existence?