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:11/24/2015)... ... , ... The Academy of Model Aeronautics (AMA), led by its Executive Council, ... Grand Prix, to represent the First–Person View (FPV) racing community. , FPV racing has ... type of racing and several new model aviation pilots have joined the community because ...
(Date:11/24/2015)... CITY , Nov. 24, 2015 /PRNewswire/ - ... "Company") announced today that the remaining 11,000 post-share ... Share Purchase Warrants (the "Series B Warrants") subject ... were exercised on November 23, 2015, which will ... Shares.  After giving effect to the issuance of ...
(Date:11/24/2015)... ... November 24, 2015 , ... Creation ... on being named to Deloitte's 2015 Technology Fast 500 list of the fastest ... AcceleDent®, a FDA-cleared, Class II medical device that speeds up orthodontic tooth movement ...
(Date:11/24/2015)... VILLAGE, Nev. , Nov. 24, 2015  PDL BioPharma, ... John P. McLaughlin , the company,s president and chief executive ... Jaffray Healthcare Conference next week in New York ... will occur on Tuesday, December 1, 2015 at 9:30 a.m. ... Presentations." Please connect to the website at least 15 minutes ...
Breaking Biology Technology:
(Date:11/9/2015)... 9, 2015  Synaptics Inc. (NASDAQ: SYNA ), ... broader entry into the automotive market with a comprehensive ... pace of consumer electronics human interface innovation. Synaptics, industry-leading ... for the automotive industry and will be implemented in ... Europe , Japan , and ...
(Date:10/29/2015)... Oct. 29, 2015   MedNet Solutions , an ... spectrum of clinical research, is pleased to announce that ... Association (MHTA) as one of only three finalists for ... – Small and Growing" category. The Tekne Awards honor ... shown superior technology innovation and leadership. ...
(Date:10/29/2015)... ARBOR, Mich. , Oct. 29, 2015 /PRNewswire/ ... Eurofins Genomics for U.S. distribution of its DNA ... DNA-seq kit and Rubicon,s new ThruPLEX Plasma-seq kit. ... to enable the preparation of NGS libraries for ... plasma for diagnostic and prognostic applications in cancer ...
Breaking Biology News(10 mins):