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Platinum nanoparticle
From Wikipedia, the free encyclopedia
Platinum nanoparticles are usually in the form of a suspension or colloid of nanoparticles of platinum in a fluid, usually water. A colloid is technically defined as a stable dispersion of particles in a fluid medium (liquid or gas).
Spherical platinum nanoparticles can be made with sizes between about 2 and 100 nanometres (nm), depending on reaction conditions.[1][2] Platinum nanoparticles are suspended in the colloidal solution of brownish-red or black color. Nanoparticles come in wide variety of shapes including spheres, rods, cubes,[3] and tetrahedra.[4]
Platinum nanoparticles are the subject of substantial research,[5][6][7] with potential applications in a wide variety of areas. These include catalysis,[7] medicine,[5] and the synthesis of novel materials with unique properties.[2][6][7]