The synthesis of platinum nanoparticles and their deposition on the active carbon fibers in one microreactor cycle.

Highlights: [•] The reaction reduction of Pt(IV) ions with NaBH4 is zero order reaction. [•] Kinetic equation allowed for establish of microreactor parameters: flow rate, length. [•] 3.5–5nm platinum nanoparticles are synthesized in microreactor. [•] The catalyst consists of PtNPs was deposited on ACFs in one microreactor cycle. [ABSTRACT FROM AUTHOR]