Sub-Nanocluster Platinum Decorated MXene/PEDOT:PSS Composites for Efficient Electrocatalyst

Platinum (Pt) is known as one of the most effective electrocatalysts for hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR). Nonetheless, its substantial cost and limited availability have hindered its broad-impact applications to electrochemical catalysts. In this research, we fabricated the MXene/poly(2,3-dihydrothieno-1,4-dioxin)-poly(styrenesulfonate) (PEDOT:PSS) composites embedded with Pt sub-nanoclusters and demonstrated their promising application to electrocatalysis. The resultant MXene and conductive polymer composites enabled Pt clustering without chemical reducing agent, while PEDOT:PSS establishes efficient ion transfer pathways, leading to exceptional electrochemical performance in catalytic reactions.