Synthesis and Characterization of High-Purity Ultrafine Platinum Particles by Chemical Refining Method

Figure 2

Spray-drying synthesis of microsized (NH₄)₂PtCl₆ powder with near-spherical particles: (a) schematic showing the spray-drying process used to synthesize the near-spherical powder, (b) the microstructure of spray-dried (NH₄)₂PtCl₆ powder, (c) the XRD pattern of spray-dried (NH₄)₂PtCl₆ powder, and (d) the particle size distribution of spray-dried (NH₄)₂PtCl₆ powder.

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