Keggin ions as UV-switchable reducing agents in the synthesis of Au core-Ag shell nanoparticles

Journal of the American Chemical Society

Volumn 125, Issue 28, 2003, Pages 8440-8441

  Mandal, Saikat ^a   Selvakannan, P R ^a   Pasricha, Renu ^a   Sastry, Murali ^a  

^a NATIONAL CHEMICAL LABORATORY   (India)

Author keywords

[No Author keywords available]

Indexed keywords

ALLOY; GOLD; ION; NANOPARTICLE; SILVER;

ARTICLE; CATALYSIS; CHEMICAL REACTION; CHEMICAL STRUCTURE; CRYSTAL STRUCTURE; IRRADIATION; OXIDATION REDUCTION REACTION; PHOTOCHEMISTRY; ULTRAVIOLET RADIATION; X RAY DIFFRACTION;

EID: 0038713933     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja034972t     Document Type: Article

References (13)

1. Schmid, G. Clusters and Colloids; VCH: Weinheim, 1994.
2. Toshima, N.; Yonezawa New J. Chem. 1998, 11, 1179.
3. (a) Link, S.; Wang, Z. I.; El-Sayed, M. A. J. Phys. Chem. B 1999, 103, 3529.
4. (b) Mallin, M. P.; Murphy, C. J. Nano Lett. 2002, 2, 1235.
5. Ah, C. S.; Hong, S. D.; Jang, D.-J. J. Phys. Chem. B 2001, 105, 7871.
6. Cao, Y.-W.; Jin, R.; Mirkin, C. A. J. Am. Chem. Soc. 2001, 123, 7961.
7. Smova-Sloufova, I.; Lednicky, F.; Gemperle, A.; Gemperlova, J. Langmuir 2000, 16, 9928.
8. Papaconstantinou, E. Chem. Soc. Rev. 1989, 18, 1.
9. Troupis, A.; Hiskia, A.; Papaconstantinou, E. Angew. Chem., Int. Ed. 2002, 41, 1911.
10. 7- ions [Pope, M. T. Heteropoly and Isopoly Oxometalates; Inorganic Chemistry Concepts 8; Springer-Verlag: New York, 1983; Chapter 4]. Such hydrolyzed ions may also be active in gold ion reduction.
11. Watzky, M. A.; Finke, R. G. Chem. Mater. 1997, 9, 3083.
12. Perez-Maqueda, L. A.; Matijevic, E. Chem. Mater. 1998, 10, 1430.
13. TEM images were recorded on a JEOL 1200EX microscope at 120 kV. Samples for TEM analysis were prepared by drop-casting films of the PTA nanoparticles onto carbon-coated TEM grids. Spot-profile EDX analysis of Au core-Ag shell nanoparticles was carried out on solution-cast films on Si (111) wafer in a Leica Stereoscan scanning electron microscope equipped with a Phoenix EDX attachment.