Used primarily in catalysis research and development, especially in the synthesis of platinum-based catalysts for fuel cells and automotive exhaust treatment systems. Commonly applied in electroplating processes to deposit thin, conductive platinum layers on electrodes and industrial components requiring high corrosion resistance. Employed in the preparation of supported metal catalysts by impregnation methods, where it is coated onto substrates like carbon or alumina for use in chemical manufacturing and petroleum refining. Also utilized in nanomaterial synthesis, where controlled reduction yields platinum nanoparticles for sensors, medical devices, and advanced electronic applications.