'Frozen' copper behaves as noble metal in catalysis: study

As a non-noble metal, copper oxidizes more easily to a positive valence (Cu+ or Cu2+) than same-family elements Au or Ag. In general, this chemical property is mainly determined by electron structure. Can we change the chemical ...

New methods could improve, expand 3-D imaging using X-rays

Researchers report two new approaches to producing three-dimensional (3-D) images using X-rays that could improve disease-screening, study of very fast processes and enable analysis of the properties of materials and structural ...

Magnetic materials for motors of the future

According to a statistic from the University of Chicago, 50 percent of U.S. power goes through a motor. Vehicles like cars and planes rely on motors to transform power, as do household appliances like vacuums and refrigerators. ...

Building a better battery, layer by layer

A team of researchers from Shinshu University in Nagano, Japan is now closer to a thin, high-capacity lithium-ion battery that could open the door to better energy storage systems for electric vehicles. The research team ...

Hot nanoparticles produce giant and explosive bubbles

When gold nano particles in water are illuminated by a laser, they get very hot: well above the boiling point of water. The formation of vapour bubbles caused by this, is well-known. New experiments, however, using a very ...

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