Navigation Links
Discovery of new material state counterintuitive to laws of physics
Date:6/12/2013

LEMONT, ILL. --- When you squeeze something, it gets smaller. Unless you're at Argonne National Laboratory.

At that 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 so 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 Lab 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 Lab 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.


'/>"/>

Contact: Tona Kunz
tkunz@anl.gov
630-252-5560
DOE/Argonne National Laboratory
Source:Eurekalert

Related biology news :

1. Discovery of the gene responsible for multiple intestinal atresia in newborns
2. Autism discovery paves way for early blood test and therapeutic options
3. Eurofins MWG Operon and Floragenex close co-marketing agreement for RAD discovery and RAD genotyping
4. Discovery pinpoints cause of 2 types of leukemia
5. Discovery shows fat triggers rheumatoid arthritis
6. Pitt discovery holds potential in destroying drug-resistant bacteria
7. Discovery of new hormone opens doors to new type 2 diabetes treatments
8. Discovery may help prevent chemotherapy-induced anemia
9. Discovery may help prevent HIV reservoirs from forming
10. An important discovery in breast cancer by IRCM researchers
11. Genetic discovery found to influence obesity in people of African ancestry
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/5/2017)... KEY FINDINGS The global market ... CAGR of 25.76% during the forecast period of 2017-2025. ... for the growth of the stem cell market. ... MARKET INSIGHTS The global stem cell market is segmented ... The stem cell market of the product is segmented ...
(Date:3/30/2017)... , March 30, 2017 Trends, opportunities ... (physiological and behavioral), by technology (fingerprint, AFIS, iris recognition, ... recognition, and others), by end use industry (government and ... immigration, financial and banking, and others), and by region ... , Asia Pacific , and ...
(Date:3/24/2017)... Research and Markets has announced the addition of the "Global ... to 2025" report to their offering. ... The Global Biometric Vehicle Access System Market ... the next decade to reach approximately $1,580 million by 2025. ... for all the given segments on global as well as regional ...
Breaking Biology News(10 mins):
(Date:6/20/2017)... ... June 20, 2017 , ... Biologist Dawn Maslar MS has found a biomarker ... Men Chase, Women Choose: The Neuroscience of Meeting, Dating, Losing Your Mind, and Finding ... men. ”The logical next step, in my estimation, was to scientifically track the evidence ...
(Date:6/20/2017)... ... , ... Do More with OHAUS , With the launch of the new ... weighing industry, to extending its expertise across the entire laboratory to a range of ... allowing for its customers to 'Do More' in the lab. , Efficiency ...
(Date:6/19/2017)... ... 2017 , ... Tunnell Consulting has been solving the most complex ... challenges faced by life sciences, biotech and pharmaceuticals companies today is in interpreting the ... , who is well known in the industry and brings significant high-level expertise to ...
(Date:6/16/2017)... Rocky Hill, CT (PRWEB) , ... June 16, 2017 , ... ... of last night’s Entrepreneur Innovation Awards (EIA), held at The LOFT at Chelsea Piers ... their innovative project ideas to a panel of judges for an opportunity to secure ...
Breaking Biology Technology: