Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > New taxonomy of platinum nanoclusters: The unexpected diversity of metallic nanoclusters’ inner structure has now been catalogued into families

Abstract:
Physicists have gained new insights into the inner intricacies of the structural variations of metallic nanoclusters. This work by Luca Pavan, Cono Di Paola and Francesca Baletto from King's College London, UK, is about to be published in EPJ D. It takes us one step closer to tailoring on-demand characteristics of metallic nanoparticles. Indeed, the geometric structure of these nanoclusters influences their chemical and physical properties, which differ from those of individual molecules and of bulk metals.

New taxonomy of platinum nanoclusters: The unexpected diversity of metallic nanoclusters’ inner structure has now been catalogued into families

Germany | Posted on February 20th, 2013

The problem resides in the difficulty in evaluating the optimal structure for such clusters in order to make them display specific properties and satisfy a particular technological need. This is because a system consisting of several interlinked atoms is far too complex for its optimal structure to be identified simply by resolving equations.

Instead, the authors applied a numerical simulation method, known as metadyamics, typically used to sample the energy landscape of biomolecules and proteins. This technique, quite new in the field of metallic nanoparticles, identifies structures corresponding to each minimum of the energy landscape. In addition, this approach gains a better insight into the interconnection of various structural motifs at given temperatures.

Specifically, this study describes an iterative approach for metadynamics in order to detect which are the key structures of 13-atom-strong platinum nanoclusters. The authors focused on identifying the most recurrent motifs that can play an important role during structural transformations of the nanoclusters.

In addition, the team proposed a complete way of cataloguing such structural motifs in families. The next step would be to understand how different geometrical shapes are connected and evaluate the energy cost for each transformation, from one type of geometry to another. Applications could, for example, be found in nanocatalysis and nanodevices for magnetic storage.

Reference
Pavan L., Di Paola C. and Baletto F. (2013), Sampling the Energy Landscape of Pt13 with Metadynamics, European Physical Journal D, DOI 0.1140/epjd/e2012-30560-y

####

For more information, please click here

Contacts:
Sophia Grein

49-622-148-78414

Copyright © Springer

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

European Physical Journal:

Related News Press

News and information

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Nanobiotix: Update on Head and Neck Phase I/II Trial with NBTXR3 and Other program data presented at ImmunoRad 2018 September 20th, 2018

Chemistry

Halas wins American Chemical Society Award in Colloid Chemistry: Rice University nanophotonics pioneer honored for colloid research September 18th, 2018

How a tetrahedral substance can be more symmetrical than a spherical atom: A new type of symmetry September 14th, 2018

Terahertz spectroscopy enters the single-molecule regime September 7th, 2018

Peering into private life of atomic clusters -- using the world's tiniest test tubes September 6th, 2018

Memory Technology

Energy-efficient spin current can be controlled by magnetic field and temperature: SCMR effect simplifies the design of fundamental spintronic components August 20th, 2018

Leti & CMP Announce World’s First Multi-Project-Wafer Service with Integrated Silicon OxRAM: Oxide-Based Resistive Ram Memory Platform Development for Backend Memories To Offer Non-Volatility Associated with Embedded Designs August 2nd, 2018

A molecular switch at the edge of graphene July 27th, 2018

Magnetic skyrmions: Not the only ones of their class: Jülich researchers discover a new type of magnetic particle-like object for data storage devices of the future June 28th, 2018

Discoveries

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

NUS researchers invent new test kit for quick, accurate and low-cost screening of diseases: Test results are denoted by a color change and could be further analyzed by a smartphone app, making it attractive as a point-of-care diagnostic device September 19th, 2018

Announcements

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Nanobiotix: Update on Head and Neck Phase I/II Trial with NBTXR3 and Other program data presented at ImmunoRad 2018 September 20th, 2018

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project