To make natural gas and biogas suitable for use, the methane has to be separated from the CO2. This involves the use of membranes: filters that stop the methane and let the CO2 pass through. Researchers have developed a new membrane that makes the separation process much more effective.
Researchers have conducted highly precise measurements of the optical constants of ultrathin gold films with thicknesses ranging from 20 to 200 nanometers in the optical part of the electromagnetic spectrum.
Physicists investigated a class of materials that exhibit characteristics of topological insulators. During these studies they discovered a transition between two different topological phases, one of which is ferroelectric, meaning a phase in the material that exhibits spontaneous electric polarisation and can be reversed by an external electric field.
Electroplating, or electrodeposition, is one of the most important processes in chemistry, in which a metal cation in solution can be reduced to its elemental form by applying an electrical potential to an electrode.