Navigation Links
Engineers produce 'how-to' guide for controlling the structure of nanoparticles
Date:9/24/2009

Tiny objects known as nanoparticles are often heralded as holding great potential for future applications in electronics, medicine and other areas. The properties of nanoparticles depend on their size and structure. Now researchers from North Carolina State University have learned how to consistently create hollow, solid and amorphous nanoparticles of nickel phosphide, which has potential uses in the development of solar cells and as catalysts for removing sulfur from fuel. Their work can now serve as a "how-to" guide for other researchers to controllably create hollow, solid and amorphous nanoparticles in order to determine what special properties they may have.

The study provides a step-by-step analysis of how to create solid or hollow nanoparticles that are all made of the same material. "It's been known that these structures could be made," says Dr. Joe Tracy, an assistant professor of material science engineering at NC State and co-author of the paper, "but this research provides us with a comprehensive understanding of nanostructural control during nanoparticle formation, showing how to consistently obtain different structures in the lab." The study also shows how to create solid nanoparticles that are amorphous, meaning they do not have a crystalline structure.

Tracy explains that there is a great deal of interest in the formation of hollow nanoparticles and amorphous nanoparticles. But for many kinds of nanoparticles, there had previously been no clear understanding of how to control the formation of these structures. As a result of the new study, Tracy says, "nanoparticles with desired structures can be made more consistently, making it easier for researchers to determine their electronic, optical and catalytic properties." For example, amorphous nanoparticles may be of use in future electronic applications or for nanostructure fabrication. Tracy stresses that while the NC State researchers were able to show how to create hollow nanoparticles and amorphous nanoparticles, they were not able to create nanoparticles that were both hollow and amorphous.

The study could also have implications for many additional types of nanoparticles, not just nickel phosphide. Tracy says that the findings "could provide important insights for further studies to control the structures of many other kinds of nanoparticles, with a wide array of potential applications." These could include metal oxide, sulfide, selenide and phosphide nanoparticles.

Specifically, the researchers found that they could control whether nickel phosphide nanoparticles would be hollow or solid by adjusting the ratio of phosphorus to nickel reactants when they synthesized the nanoparticles. The researchers found that they could create amorphous solid nanoparticles by controlling the temperature.


'/>"/>

Contact: Matt Shipman
matt_shipman@ncsu.edu
919-515-6386
North Carolina State University
Source:Eurekalert

Related biology technology :

1. Penn engineers design computer memory in nanoscale form that retrieves data 1,000 times faster
2. Penn engineers design computer memory in nanoscale form that retrieves data 1,000 times faster
3. Harvard University engineers demonstrate quantum cascade laser nanoantenna
4. Cardiff University engineers give industry a moths eye view
5. Surface dislocation nucleation: Strength is but skin deep at the nanoscale, Penn engineers discover
6. Engineers make first active matrix display using nanowires
7. Engineers harness cell phone technology for use in medical imaging
8. Nanowires may boost solar cell efficiency, UC San Diego engineers say
9. Engineers demonstrate first room-temperature semiconductor source of coherent Terahertz radiation
10. Engineers whip up the first long-lived nanoscale bubbles
11. University of Pennsylvania engineers reveal what makes diamonds slippery at the nanoscale
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/11/2017)... ... October 11, 2017 , ... ... and pregnancy rates in frozen and fresh in vitro fertilization (IVF) ... maternal age to IVF success. , After comparing the results from the fresh ...
(Date:10/10/2017)... ... 10, 2017 , ... Dr. Bob Harman, founder and CEO of VetStem ... The event entitled “Stem Cells and Their Regenerative Powers,” was held ... Harman, DVM, MPVM was joined by two human doctors: Peter B. Hanson, M.D., Chief ...
(Date:10/9/2017)... 2017  BioTech Holdings announced today identification and ... ProCell stem cell therapy prevents limb loss in ... demonstrated that treatment with ProCell resulted in more ... compared to standard bone marrow stem cell administration.  ... reduction of therapeutic effect.  ...
(Date:10/7/2017)... ... October 06, 2017 , ... ... advanced instruments and applications consulting for microscopy and surface analysis, Nanoscience Instruments ... consulting, Nanoscience Analytical offers a broad range of contract analysis services for ...
Breaking Biology Technology:
(Date:6/23/2017)... ARMONK, N.Y. and ITHACA, N.Y. ... IBM ) and Cornell University, a leader in dairy ... combined with bioinformatics designed to help reduce the chances ... breaches. With the onset of this dairy project, Cornell ... the Consortium for Sequencing the Food Supply Chain, a ...
(Date:5/16/2017)... 2017   Bridge Patient Portal , an ... MD EMR Systems , an electronic medical record ... have established a partnership to build an interface ... GE Centricity™ products, including Centricity Practice Solution (CPS), ... These new integrations will allow healthcare delivery networks ...
(Date:4/18/2017)... SUNNYVALE, Calif. , April 18, 2017  Socionext Inc., a ... prototype of a media edge server, the M820, which features the ... face recognition software provided by Tera Probe, Inc., will be showcased ... and at the NAB show at the Las Vegas ... ...
Breaking Biology News(10 mins):