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In a newly published study, researchers from the Argonne National Laboratory detail how they seemingly defied the laws of physics, using hydrostatic pressure to make dense materials with interpenetrated atomic frameworks into novel porous materials.
Lemont, Illinois – When you squeeze something, it gets smaller. Unless you’re at Argonne National Laboratory.
At the suburban Chicago laboratory, a group of scientists has seemingly defied the laws of physics and found a way to apply pressure to make a material expand instead of compress/contract.
“It’s like squeezing a stone and forming a giant sponge,” said Karena Chapman, a chemist at the U.S. Department of Energy laboratory. “Materials are supposed to become denser and more compact under pressure. We are seeing the exact opposite. The pressure-treated material has half the density of the original state. This is counterintuitive to the laws of physics.”
Because this behavior seems impossible, Chapman and her colleagues spent several years testing and retesting the material until they believed the unbelievable and understood how the impossible could be possible. For every experiment, they got the same mind-bending results. “The bonds in the material completely rearrange,” Chapman said. “This just blows my mind.” This discovery will do more than rewrite the science text books; it could double the variety of porous framework materials available for manufacturing, health care and environmental sustainability.
Scientists use these framework materials, which have sponge-like holes in their structure, to trap, store and filter materials. The shape of the sponge-like holes makes them selectable for specific molecules, allowing their use as water filters, chemical sensors and compressible storage for carbon dioxide sequestration of hydrogen fuel cells. By tailoring release rates, scientists can adapt these frameworks to deliver drugs and initiate chemical reactions for the production of everything from plastics to foods.
“This could not only open up new materials to being porous, but it could also give us access to new structures for selectability and new release rates,” said Peter Chupas, an Argonne chemist who helped discover the new materials.
The team published the details of their work in the May 22 issue of the Journal of the American Chemical Society in an article titled “Exploiting High Pressures to Generate Porosity, Polymorphism, And Lattice Expansion in the Nonporous Molecular Framework Zn(CN)2.”
The scientists put zinc cyanide, a material used in electroplating, in a diamond-anvil cell at the Advanced Photon Source (APS) at Argonne and applied high pressures of 0.9 to 1.8 gigapascals, or about 9,000 to 18,000 times the pressure of the atmosphere at sea level. This high pressure is within the range affordably reproducible by industry for bulk storage systems. By using different fluids around the material as it was squeezed, the scientists were able to create five new phases of material, two of which retained their new porous ability at normal pressure. The type of fluid used determined the shape of the sponge-like pores. This is the first time that hydrostatic pressure has been able to make dense materials with interpenetrated atomic frameworks into novel porous materials. Several series of in situ high-pressure X-ray powder diffraction experiments were performed at the 1-BM, 11-ID-B, and 17-BM beamlines of the APS to study the material transitions.
“By applying pressure, we were able to transform a normally dense, nonporous material into a range of new porous materials that can hold twice as much stuff,” Chapman said. “This counterintuitive discovery will likely double the amount of available porous framework materials, which will greatly expand their use in pharmaceutical delivery, sequestration, material separation and catalysis.”
The scientists will continue to test the new technique on other materials.
The research is funded by the U.S. Department of Energy’s Office of Science.
The Advanced Photon Source (APS) at the U.S. Department of Energy’s Argonne National Laboratory provides this nation’s (in fact, this hemisphere’s) brightest storage ring-generated x-ray beams for research in almost all scientific disciplines.
These x-rays allow scientists to pursue new knowledge about the structure and function of materials in the center of the Earth and in outer space, and all points in between. The knowledge gained from this research can impact the evolution of combustion engines and microcircuits, aid in the development of new pharmaceuticals, and pioneer nanotechnologies whose scale is measured in billionths of a meter, to name just a few examples. These studies promise to have far-reaching impact on our technology, economy, health, and our fundamental knowledge of the materials that make up our world.
The APS electron accelerator and storage system are the first critical steps in producing the high-energy x-rays that are used for frontier research.
Originally posted by theabsolutetruth
reply to post by resoe26
I wish my wallet would expand under pressure!
Originally posted by Miccey
Deny Arrogance is the proper label...
Denying the "LAWS" of physics...
I bet when we are done...I mean when universe is
dying of old age, there will be trillions of new laws and
all of them broken or modyfied....
You cant do that, you cant do this, bla bla bla...
Arrogant turdheads....Think they no all...
Originally posted by theabsolutetruth
reply to post by resoe26
I know, you were referring you the sachet of ketchup, right?
Originally posted by theabsolutetruth
Also interesting is that the material used was Zinc Cyanide, which has one of the largest negative coefficents of thermal expansion.
This interests me greatly as a possible step forwards for establishing possible materials found at Roswell and other reports of such of expanding / contracting shiny zinc like materials often cited in UFO sightings. And that the research facility is the Advanced Photon Source Lab that is also doing interesting research into Macromolecular Crystallography. Interesting place.
www.aps.anl.gov...
The Advanced Photon Source (APS) at the U.S. Department of Energy’s Argonne National Laboratory provides this nation’s (in fact, this hemisphere’s) brightest storage ring-generated x-ray beams for research in almost all scientific disciplines.
These x-rays allow scientists to pursue new knowledge about the structure and function of materials in the center of the Earth and in outer space, and all points in between. The knowledge gained from this research can impact the evolution of combustion engines and microcircuits, aid in the development of new pharmaceuticals, and pioneer nanotechnologies whose scale is measured in billionths of a meter, to name just a few examples. These studies promise to have far-reaching impact on our technology, economy, health, and our fundamental knowledge of the materials that make up our world.
The APS electron accelerator and storage system are the first critical steps in producing the high-energy x-rays that are used for frontier research.
No weather balloon comments please.edit on 13-6-2013 by theabsolutetruth because: (no reason given)