Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 81: Issue 3
Calorimetric study on self-assembling of two kinds of monometallic nanoparticles in solution
Authors:
M. Kanemaru Department of Materials Science and Environmental Engineering, Tokyo University of Science, Yamaguchi Onoda-shi, Yamaguchi, 756-0884, Japan

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Y. Shiraishi Department of Materials Science and Environmental Engineering, Tokyo University of Science, Yamaguchi Onoda-shi, Yamaguchi, 756-0884, Japan

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Y. Koga Department of Chemistry, The University of British Columbia 2036 Main Mall, Vancouver, B.C., Canada V6T 1Z1

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N. Toshima Department of Materials Science and Environmental Engineering, Tokyo University of Science, Yamaguchi Onoda-shi, Yamaguchi, 756-0884, Japan

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Pages:
523–527
Online Publication Date:
08 Sep 2005
Publication Date:
01 Aug 2005
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-005-0815-2
Keywords:
rhodium; platinum; silver; palladium; self-organization; isothermal titration calorimetry; calorimetric method; bimetallic nanoparticles; core/shell structure; metal nanoparticle; self-assembling
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Summary Recently, we have reported a noble method of preparing Ag/Rh bimetallic nanoparticles with a pseudo-core/shell structure. We simply mix the dispersions of poly(N-vinyl-2-pyrrolidone)(PVP)-protected Ag and Rh nanoparticles in solution at room temperature. We found that the mixture of dispersions forms bimetallic nanoparticles in a pseudo-core/shell structure on standing. We call this process the ‘self-assembling’ or ‘self-organizing’. In this study we seek for a thermodynamic driving force for this process by determining the enthalpy of the interaction among three pairs of nanoparticles by isothermal titration calorimetry (ITC). The results indicate that the interaction between each pair is strongly exothermic, and that among the pairs studied here the strength of the exothermic interaction is in the order of Ag/Pt<Ag/Pd<Ag/Rh.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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