[Home]   [Full version]  

Scientists take on the crystal maze

May 22 ,Physics


Scientists at the University of Manchester are to create the first 3D model of the maze-like crystals known as Zeolites.

Professor Michael Anderson of the University's Centre for Microporous Materials will lead an international research team in a bid to create the first 3D ‘map' of the material.

Zeolites are porous crystals commonly known as molecular sieves. They are made up of a complex maze of tunnels which can be used to purify or filter materials such as water or crude oil when they are passed through the crystal.

The aim of the three-year project is to understand how Zeolite crystals grow in order to gain a better understanding of their morphology. If successful, the model will then be used to inform new techniques for controlling crystal growth.

Professor Anderson said: “If we can create a model of the complex 3D puzzle inside porous materials such as Zeolites we will be one step closer to understanding how to control the growth and final shapes of these crystals.

“If we can control crystal growth then we will have the potential to create defect free crystals with unlimited applications in electronics, oil refinement and even nuclear clean-up.”

An analytical technique known as Atomic Force Microscopy (AFM) will be used to map the topology of the material at a sub-nanometre scale. Electron Microscopy will also be used to analyse the crystal interior structure and defects. Both techniques will be combined with advanced theory and modelling techniques to create the model.

The research will be funded by a £1.1m grant from the Engineering and Physical Sciences Research Council.

Professor Anderson added: “We hope to substantially improve the fundamental understanding of the crystal growth of a whole class of nano-porous materials.”

Source: The University of Manchester

Related stories:

'Nanosculpture' could enable new types of heat pumps, energy converters
A new technique for growing single-crystal nanorods and controlling their shape using biomolecules could enable the development of smaller, more powerful heat pumps and devices that harvest electricity from heat.
Ice creamier: 'Edible antifreeze' puts the smooth in smoothie
It's Friday night, and the movie's already spinning in the DVD player. You run to the kitchen to grab a gallon of ice cream and a spoon, but you find the tub nearly empty.
Liquid Crystals Slow Light Pulses to a Snail's Pace
In a vacuum, the speed of a light pulse is always a constant at 186,000 miles (300,000 km) per second. But by changing the medium through which light travels, physicists can slow down light pulses, and possibly create highly sensitive light interferometers, among other devices.
Surprising graphene: Honing in on graphene electronics with infrared synchrotron radiation
Graphene is the two-dimensional crystalline form of carbon: a single layer of carbon atoms arranged in hexagons, like a sheet of chicken wire with an atom at each nexus. As free-standing objects, such two-dimensional crystals were believed impossible to create -- even to exist -- until physicists at the University of Manchester actually made graphene in 2004.
The Photonic Beetle: Nature Builds Diamond-Like Crystals For Future Optical Computers
Researchers have been unable to build an ideal “photonic crystal” to manipulate visible light, impeding the dream of ultrafast optical computers. But now, University of Utah chemists have discovered that nature already has designed photonic crystals with the ideal, diamond-like structure: They are found in the shimmering, iridescent green scales of a beetle from Brazil.
First-class protein crystals thanks to weightlessness on earth
Dutch chemist Paul Poodt has developed two attractive alternatives for allowing protein crystals to grow under weightless conditions. If the crystals are grown upside down in a strong magnetic field, fluid flows that disrupt crystal growth are suppressed. Therefore, high-quality proteins no longer need to be grown in space, but can be grown here on earth.
Findings a step toward making new optical materials
Chemical engineers have developed a "self-assembling" method that could lead to an inexpensive way of making diamondlike crystals to improve optical communications and other technologies.
Fake diamonds help jet engines take the heat
Ohio State University engineers are developing a technology to coat jet engine turbine blades with zirconium dioxide -- commonly called zirconia, the stuff of synthetic diamonds -- to combat high-temperature corrosion.

News discussion:

Physics news

[Home]   [Full version]