Abstract
Pd-M (M=Ag and Ni) and Pt-M (Ru and Ni) alloy colloids were successfully prepared in aqueous solution by γ-irradiation using poly(vinylpyrrolidone), PVP, as stabilizer. The PVP-stabilized Pd-M and Pt-M nanoparticles were characterized by UV-Vis spectroscopy, Transmission Electron Microscopy (TEM) and Electrophoretic Light Scattering (ELS) analysis. The influence of molecular size of the PVP on the size and size distribution of the alloy nanoparticles was followed. Pd-Ag nanoparticles were formed by employing PVP with different molecular weights. The size of Pd-Ag alloy nanoparticles was determined by TEM photograph and ELS spectra, respectively. From the TEM photographs, the average diameter of Pd-Ag nanoparticles does not show strong dependence on the molecular weight of the PVP. On the other hand, the average diameter of Pd-Ag alloy colloids prepared by PVP with Mw=40,000 was consistently larger than that of Pd-Ag alloy colloids prepared by PVP with Mw=10,000. A plausible scheme is given to explaining this. The size and size distribution of Pt-M (Ru and Ni) alloy colloids are presented.
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References
Bohren, C. F. and Huffman, D. R.,Absorption and scattering of light by small particles, Wiley, New York (1983).
Choi, S.-H., Lee, S. H., Hwang, Y. M., Lee, K. P. and Kang, H. D., “Interaction between the surface of the silver nanoparticle prepared by γ-irradiation and organic molecules with thiol group,”Radiati. Phys. Chem.,67, 517 (2003).
Choi, S.-H., Choi, M. S., Lee, K. P. and Kang, H. D., “Preparation and characterization of CdS and CdS/polyacrylonitrile nanocomposites by γ-irradiation and emulsion polymerization,”J. Appl. Polym. Sci.,91, 2335 (2004).
Chung, Y.-M. and Rhee, H.-K., “Pt-Pd bimetallic nanoparticles encapsulated in dendrimer nanoreactor,”Catal. Lett.,85, 159 (2003).
Galo, C. T. and Rodrigo, S. D., “Synthesis and properties of Au-Pd bimetallic colloids,”Mater. Resear. Bull.,35, 1369 (2000).
Ghosh, S. K., Mandal, M., Kundu, S., Nath, S. and Pal, T., “Bimetallic Pt-Ni nanoparticles can catalyze reduction of aromatic nitro compounds by sodium borohydride in aqueous solution,”Appl. Catal. A: Gener.,268, 61 (2004).
Harada, M., Asakura, K., Ueki, T. and Toshima, N., “Catalytic activity and structural analysis of polymer-protected gold/palladium bimetallic clusters prepare by the successive reduction of hydrogen tetrachloroaurate (III) and palladium dichloride,”J. Phys. Chem.,97, 5103 (1993).
Henglein, A. and Meisel, D., “Reduction of Ag(CN) -2 on silver and platinum colloidal nanoparticles,”Langmuir,14, 14 (1988).
Izgaliev, A. T., Simakin, A. V., Shafeev, G. A. and Bozon-Verduraz, F., “Intermediate phase upon alloying Au-Ag nanoparticles under laser exponsure of the mixture of individual colloids,”Chem. Phys. Lett.,390, 467 (2004).
Kapoor, S., “Preparation, characterization, and surface modification of silver particles,”Langmuir,14, 1021 (1998).
Liu, H., Mao, G. and Meng, S., “Preparation and characterization of the polymer-protected palladium-gold colloidal bimetallic catalysts,”J. Mol. Catal.,74, 275 (1992).
Mandal, S., Gole, A., Lala, N., Gonnade, R., Ganvir, V. and Sastry, M., “Studies on the reversible aggregation of cysteine-capped colloidal silver particles interconnected via hydrogen bonds,”Langmuir,17, 6262 (2001).
Neiman, B., Grushka, E. and Lev, O., “Use of gold nanoparticles to enhance capillary electrophoresis,”Anal. Chem.,73, 5220 (2001).
Park, K.-W., Choi, J.-H., Lee, S.-A., Pak, C., Chang, H. and Sung, Y.-E., “PtRuRhNi nanoparticles electrocatalyst for methanol electrooxidation in direct methanol fuel cell,”J. Catal.,224, 236 (2004).
Remita, S., Picq, G., Khatouri, J. and Mostafavi, M., “Radiolytic formation of bilayered Ptcore/Aushell and Aucore/Ptshell clusters in aqueous solution,”Radiati. Phys. Chem.,54, 463 (1999).
Torigoe, K. and Esumi, K., “Preparation of bimetallic silver-palladium colloids from silver (I) bis(oxalato)palladate (II),”Langmuir,9, 1664 (1993).
Toshima, N. and Yonezawa, T., “Bimetallic nanoparticles-novel materials for chemical and physical application,”New J. Chem.,1179 (1998).
Wei, Z. D. and Chan, S. H., “Electrochemical deposition of PtRu on an uncatalyzed carbon electrode for methanol electrooxidation,”J. Electroanal. Chem.,569, 23 (2004).
Wu, M. L., Chen, D. H. and Huang, T. C., “Synthesis of Au/Pd bimetallic nanoparticles in reverse micelles,”Langmuir,17, 3877 (2001).
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Kim, SJ., Oh, SD., Choi, SH. et al. Radiolytic synthesis of Pd-M (M=Ag and Ni) and Pt-M (M=Ru and Ni) alloy colloids. Korean J. Chem. Eng. 23, 488–495 (2006). https://doi.org/10.1007/BF02706754
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DOI: https://doi.org/10.1007/BF02706754