... time shown that nanotubes can grow without a metal catalyst. The researchers demonstrate that zirconium oxide ... can grow a nanotube. "People report new metals [as catalysts] every so often," he ...
... . Researchers have now used numerical simulation methods to show how the selectivity of reaction mechanisms at the surface of a metal catalyst can be understood far more simply ...
... of California, Berkeley. The team has discovered an inexpensive metal catalyst that can effectively generate hydrogen gas ... times cheaper than platinum, today's most widely used metal catalyst for splitting the water molecule," said Hemamala ...
... like spinning straw into gold, but novel metal catalysts may be able to turn greenhouse gases like methane and carbon dioxide into liquid fuels ...
... and lasers. Until now, most nanowires have been made with metal catalysts, which promote the growth of nanomaterials along ... because when complex, branching nanostructures are grown with metal catalysts, the branches are usually all of similar length ...
... molecule. At exactly the same moment, the organic catalyst interacts with the aldehyde, forming an enamine, also an activated ... a method that replaces the expensive and often toxic metallic catalysts with simpler, more readily available organic ...
... alternative. Initial reactions using various noble-metal catalysts have been developed. Their disadvantage is that large amounts ... amounts of nickel improve the efficiency and selectivity of the catalyst system: a synergetic effect between the nickel and tungsten ...
High pressure chemistry converts biomass to ethylene glycol without precious-metal catalysts
... . has announced a new ultra-low precious metal catalyst that will cut in half the amount of precious ... Technology, the new ultra-low precious metal catalyst which purifies exhaust gas is the first ...
... takes place without any precious metal catalysts and at a lower energy level than converting carbon dioxide to methane using conventional, non-biological ...
... (NHCs), a novel organocatalyst. In contrast to heavy metal catalysts that contain toxic and unstable components ... longer reaction time. They also require transition metal catalysts, which are both unstable in oxygen and expensive ...
... used in such synthesis process are 'ligand-metal catalysts' (such as ligand-copper, -palladium, -platinum, -ruthenium etc ... since relatively a high catalyst loading is needed, compared to ligand-metal catalysis. Professor ...
... emission microscope (FEM). A few atoms of metal catalyst were placed on the tip of the FEM's needle ... probe, and carbon nanotubes grew atop the metal catalyst. An electric current was passed lengthwise ...
Nanotubes made without metal catalyst … Scientists offer new AIDS vaccine strategy … Tasmania reports record warm ...
Researchers develop a simple, one-pot reaction to create carbon-carbon bonds at a carbonyl group without a metal catalyst
