Compendio degli studi più significativi con riferimento a proprietà, assunzione, effetti.

Furlong, D. N., Launikonis, A., Sasse, W. H., & Sanders, J. V. (1984). Colloidal platinum sols. Preparation, characterization and stability towards salt. Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 80(3), 571-588.

Abstract. Hydrogen treatment of platinum sols leads to growth of particles up to a maximum size of ca. 5 nm and substantial linkage of primary particles to form extensive aggregates. Such growth and aggregation lead to significant changes in the u.v.–visible spectra and reduced resistance to electrolyte-induced coagulation.

Mayer, A. B., & Mark, J. E. (1996). Polymer-protected, colloidal platinum nanocatalysts. Polymer Bulletin, 37(5), 683-690.

Abstract. The type of protective polymer and its properties strongly influence the catalytic activity by creating a certain “environment” surrounding the catalytically-active nanometal. Thus, careful selection of the protective polymer plays an important role in the development of tailored metal-polymer catalyst systems.

Ahmadi, T. S., Wang, Z. L., Green, T. C., Henglein, A., & El-Sayed, M. A. (1996). Shape-controlled synthesis of colloidal platinum nanoparticles. Science, 272(5270), 1924-1925.

Abstract. The shapes and sizes of platinum nanoparticles were controlled by changes in the ratio of the concentration of the capping polymer material to the concentration of the platinum cations used in the reductive synthesis of colloidal particles in solution at room temperature. Tetrahedral, cubic, irregular-prismatic, icosahedral, and cubo-octahedral particle shapes were observed, whose distribution was dependent on the concentration ratio of the capping polymer material to the platinum cation. Controlling the shape of platinum nanoparticles is potentially important in the field of catalysis.

Morales, B. E., Gamboa, S. A., Pal, U., Guardian, R., Acosta, D., Magaña, C., & Mathew, X. (2010). Synthesis and characterization of colloidal platinum nanoparticles for electrochemical applications. International journal of hydrogen energy, 35(9), 4215-4221.

Abstract. The electrochemical characteristics of the Pt nanoparticles supported on carbon were investigated by analyzing their catalytic response to the oxygen reduction reaction. 

Toshima, N., Takahashi, T., & Hirai, H. (1985). Colloidal platinum catalysts prepared by hydrogen-and photo-reduction in the presence of surfactant. Chemistry Letters, 14(8), 1245-1248.

Abstract. The particles of the colloidal platinum prepared by photo-reduction were smaller in size and more narrowly dispersed than those prepared by hydrogen-reduction. They worked as highly active catalysts for hydrogenation of olefins.

Darwent, J. R. (1982). Photocatalytic hydrogen evolution from alcohols using dodecawolframosilicic acid colloidal platinum. Journal of the Chemical Society, Chemical Communications, (14), 798-799.

Abstract. Illumination of dodecawolframosoilicic acid and colloidal platinum leads to photocatalytic H2 evolution from alcohols with a quantum yield for H2 of 0.1 mol einstein–1.

Zheng, H., Smith, R. K., Jun, Y. W., Kisielowski, C., Dahmen, U., & Alivisatos, A. P. (2009). Observation of single colloidal platinum nanocrystal growth trajectories. science, 324(5932), 1309-1312.

Abstract. Understanding of colloidal nanocrystal growth mechanisms is essential for the syntheses of nanocrystals with desired physical properties. The classical model for the growth of monodisperse nanocrystals assumes a discrete nucleation stage followed by growth via monomer attachment, but has overlooked particle-particle interactions.

Gharibshahi, E., & Saion, E. (2012). Influence of dose on particle size and optical properties of colloidal platinum nanoparticles. International journal of molecular sciences, 13(11), 14723-14741.

Abstract. In this paper, we report the gamma radiolytic synthesis of colloidal Pt nanoparticles from platinum tetraammine complex ions (Pt(NH3)4Cl2) in an aqueous solution of polyvinyl pyrrolidone (PVP), which produced steady spectra with two absorption peaks.

Touroude, R., Girard, P., Maire, G., Kizling, J., Boutonnet-Kizling, M., & Stenius, P. (1992). Preparation of colloidal platinum/palladium alloy particles from non-ionic microemulsions: characterization and catalytic behaviour. Colloids and Surfaces, 67, 9-19.

Abstract. Bimetallic particles of platinum and palladium have been prepared by reduction, with hydrazine at arabient temperature, of H2PtCl6 and PdCl2 dissolved in microemulsions consisting of water, hexadecane and pentacthylene glycol dodecyl ether.