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When small is better

Green, M.A. (2009) When small is better. Nature Materials, 8 (6). pp. 450-451. ISSN 14761122 (ISSN). (doi:10.1038/nmat2457) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:51007)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
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Makiura and coresearchers have shown how a canonical high-temperature Ag+-ion conductor can be manipulated to produce functional conduction under ambient conditions. This is achieved by forming small nanoparticles of AgI coated in a particular polymer that is also known for its ability to conduct Ag+ ions. The authors have synthesized nanoparticles of AgI coated with the polymer poly(N-vinyl-2-pyrrolidone). On being heated, these particles transform to the ion-conducting α-phase at the expected temperature of more than 140°C. The authors report that the high-temperature to low-temperature transition is suppressed over only a small range of particle sizes. Nanoparticles larger than this have properties much more similar to the bulk, suggesting that a very specific state is present at about 10 nm.

Item Type: Article
DOI/Identification number: 10.1038/nmat2457
Additional information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - Nat. Mater. [Field not mapped to EPrints] AD - Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, United States [Field not mapped to EPrints] AD - NIST Center for Neutron Research, NIST, 100 Bureau Drive, Gaithersburg, MD 20899, United States [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled keywords: Ambient conditions, High temperature, Ion conductors, Ion-conducting, Low temperatures, N-vinyl-2-pyrrolidone, Specific state, Ions, Nanoparticles, Plastic coatings, Silver
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Q Science > QD Chemistry > QD478 Solid State Chemistry
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Giles Tarver
Date Deposited: 14 Oct 2015 16:15 UTC
Last Modified: 16 Nov 2021 10:21 UTC
Resource URI: (The current URI for this page, for reference purposes)

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