Navigation Links
Researchers produce nanostructures with potential to advance energy devices

TEMPE. Ariz. -- New types of nanostructures have shown promise for applications in electrochemically powered energy devices and systems, including advanced battery technologies.

One process for making these nanostructures is dealloying, in which one or more elemental components of an alloy are selectively leached out of materials.

Arizona State University researchers Karl Sieradzki and Qing Chen have been experimenting with dealloying lithium-tin alloys, and seeing the potential for the nanostructures they are producing to spark advances in lithium-ion batteries, as well as in expanding the range of methods for creating new nanoporous materials using the dealloying process.

Their research results are detailed in a paper they co-authored that was recently published on the website of the prominent science and engineering journal Nature Materials (Advance online publication).

Read the article abstract at:

Sieradzki is a materials scientist and professor in the School for Engineering of Matter, Transport and Energy, one of ASU's Ira A. Fulton Schools of Engineering.

Chen earned his doctoral degree in materials science at ASU last spring and is now a postdoctoral research assistant.

Nanoporous materials made by dealloying are comprised of nanometer-scale zigzag holes and metal. These structures have found application in catalysis (used to increase the rate of chemical reactions) as well as actuation (used to mechanically move or control various mechanisms or systems) and supercapacitors (which provide a large amount of high electrical capacity in small devices).

They could also improve the performance of electrochemical sensing technology and provide more resilient radiation damage-resistant materials.

The nanostructures that Sieradzki and Chen have produced by dealloying lithium-tin alloys allows for more efficient transport and storage of the electric charge associated with lithium, while the small size prevents fracture of the tin reservoir that serves as a storage medium for lithium.

Lithium-ion batteries are one of the leading types of rechargeable batteries. They are widely used in consumer products, particularly portable electronics, and are being increasingly used in electric vehicles and aerospace technologies.

Sieradzki and Chen say that with more research and development the porous nanostructures produced by dealloying lithium alloys could provide a lithium-ion battery with improved energy-storage capacity and a faster charge and discharge enabling it to work more rapidly.

One major advantage is that the porous nanostructures providing this electrochemical power boost can evolve spontaneously during tunable dealloying processing conditions. This, Sieradzki explains, opens up possibilities for developing new nanomaterials that could have a multitude of technological applications.

"There are a lot of metals that scientists and engineers have not be able to make nanoporous," he says. "But it turns out that with lithium you can lithiate and de-lithiate a lot of materials, and do it easily at room temperature. So this could really broaden the spectrum for what's possible in making new nanoporous materials by dealloying."


Contact: Joe Kullman
Arizona State University

Related biology technology :

1. Researchers discover breakthrough technique that could make electronics smaller and better
2. GridGain Enables Portland State Univ. Researchers to Push Boundaries of Science
3. Reproducing natures chemistry: Researchers alter molecular properties in a new way
4. IntelLiDrives XYZ Robot Helps Researchers to Develop Weather-resistant Crops
5. Researchers figure out how to grow carbon nanotubes with specific atomic structures
6. Opertech Bio Researchers Develop Method For High-Throughput Taste Evaluation
7. Sarcoma Alliance Announces Tissue Bank to Help Researchers
8. BioInformatics LLC—New Report Finds High Degree of Satisfaction With Instrumentation Performance Among Researchers
9. York Nanocentre researchers image individual atoms in a living catalytic reaction
10. Medrio, a Leading EDC Provider for Clinical Research, Announces Its Latest Version, 8.1 with iPad Support, is Available Without Charge for Academic Researchers
11. Researchers strike gold with nanotech vaccine
Post Your Comments:
(Date:10/8/2015)... , Oct. 8, 2015  Sorrento Therapeutics, ... developing new treatments for cancer and associated pain, announced ... Officer, will be presenting at the Aegis Capital ... Vegas :Event:Aegis Capital Corporation 2015 Growth ConferenceDate:Friday, ... room, The Encore @ The Wynn in Las ...
(Date:10/8/2015)... MANASSAS, Va. , Oct. 8, 2015  ATCC, ... announces today that it has been selected by The ... provide vital cell lines to academic, pharmaceutical, and biotechnology ... the United States , ... --> the United States , ...
(Date:10/8/2015)... 8, 2015 Celemics, a global pioneer of ... North American market with the establishment of Celemics America, ... Europe , has secured itself in ... methodology and sample preparation for DNA sequencing and genetic ... and somatic genetic testing more accurately, quickly, and cost ...
(Date:10/8/2015)... PORTLAND, Oregon , October 8, 2015 /PRNewswire/ ... . --> Global Biologics and Biosimilars ... added a report "Global Biologics and Biosimilars Industry ... Growth, Analysis and Forecast" is a professional and ... Biosimilars industry . ) , ...
Breaking Biology Technology:
... Merrimack Pharmaceuticals today announced that it will present at the Jefferies 2010 Global Life Sciences Conference ... provide a company overview at 11:00am EDT , Wednesday, June 9, 2010 at ... , , ... , , , ...
... June 1 Diplomat Specialty Pharmacy, the ... launch of Navigator Health Services, an independent division of ... pharmacy industry. The announcement was made by Diplomat Specialty ... who says that Navigator Health Services was formed in ...
... Calif. , June 1 Epeius Biotechnologies Corporation ( ... "Advanced Phase I/II Evaluation of Tumor-Targeted Gene Delivery: Intravenous Rexin-G as ... the ASCO Annual Meeting on June 8, 2010 . The ... Stanford University Medical Center, Palo Alto CA. ...
Cached Biology Technology:
(Date:9/10/2015)... , Sept. 10, 2015 Pursuant ... Clinic Wellness to create an interactive, image-based health ... health and wellness kiosk.  The unique assessment quantifies ... a number that suggests an individual,s biological age ... values as measured by the kiosk. ...
(Date:9/8/2015)... , Sept. 8, 2015   TREW Marketing ... the new survey, Smart Marketing for Engineers TM ... 580 engineering professionals reveals insightful findings about engineers, preferences ... types of content engineers most value and trust, and ... Marketers targeting technical audiences grapple with how to ...
(Date:9/2/2015)... YORK , Sept. 2, 2015 ... key concern for enterprises, banks, government organizations, telecommunications, ... and numeric keypads were previously being used to ... introduction of two-factor authentication, wherein individuals could gain ... two different components, such as hardware devices and ...
Breaking Biology News(10 mins):
... "We can make you and we can break you." If ... oxide would start something like that. But this song wouldn,t ... of Rice chemist James Tour demonstrates an environmentally friendly way ... version of single-atom-thick graphene expected to find use in all ...
... A novel approach detects genetically abnormal cells in the blood ... in tumor cells and increase in number with the severity ... The University of Texas MD Anderson Cancer Center report in ... patients in the study also had many times the number ...
... A University of Minnesota Medical School research team led ... a novel approach to ease the chronic and acute ... a mouse model of SCD, Gupta and University of ... that exhibited both musculoskeletal pain and temperature sensitivity, symptoms ...
Cached Biology News:
Request Info...
... digests duplex DNA in a 3'-> 5' ... nick, producing stretches of single-stranded DNA. Under ... III proceeds at a uniform rate yielding ... of exonucleolytic excision of deoxyribonucleotides by Exonuclease ...
Mouse monoclonal [HL-37] to HLA DQ1 + HLA DQ3 ( Abpromise for all tested applications)....
Biology Products: