Induced Diffusion Effect Realizes Heterogeneous Separation/Aggregation for In Situ Fabrication of Heterostructure with Enhanced Catalytic Activity

• DOI: 10.1002/adfm.202405339
• Publication Date: 2024-05-07T18:36:45Z
• Authors: Hang Li; Xinyu Ding; Mengfei Su; Chunyan Zhang; Feng Gao; Qingyi Lu
• Keywords: 02 engineering and technology; 0210 nano-technology

Abstract Space charge transfer, which can be provided by heterogeneous structure, is the key to efficient electrocatalytic processes. However, difficulty in controlling relative atomic diffusion rates due different radii and affinity makes nanostructures difficult accurately designed. Herein, an induced strategy based on differences between elements proposed direct separation/aggregation of components precursor. The this study Cu Co S/P precursor CuCo Prussian blue analogue (PBA). By molar ratio S P during phosphorization/vulcanization process, achieved leads directional species. As a result, yolk‐shell 2 S@CoP ‐C‐N‐S structure successfully synthesized with reticular CoP2‐C‐N‐Cu‐S as shell nanocrystal core. space effect semiconductor heterojunction resulting from component significantly promotes oxygen evolution reaction, ultralow overpotential 180 mV at 10 mA·cm −2 . This work not only provides simple method for separation gas‐solid systems but also fine‐tuning active site active‐site‐engineering approach.