Water‐Stable High‐Entropy Metal‐Organic Framework Nanosheets for Photocatalytic Hydrogen Production

• DOI: 10.1002/adma.202403328
• Publication Date: 2024-04-08T08:34:42Z
• Authors: Shengliang Qi; Kaixin Zhu; Ting Xu; Hefeng Zhang; Xiangyang Guo; Junhui Wang; Fuxiang Zhang; Xu Zong
• Keywords: Photocatalytic water splitting

Abstract Metal‐organic frameworks (MOFs) have emerged as promising platforms for photocatalytic hydrogen evolution reaction (HER) due to their fascinating physiochemical properties. Rationally engineering the compositions and structures of MOFs can provide abundant opportunities optimization. In recent years, high‐entropy materials (HEMs) demonstrated great potential in energy environment fields. However, there is still no report on development (HE‐MOFs) HER aqueous solution. Herein, authors synthesis a novel p ‐type HE‐MOFs single crystal (HE‐MOF‐SC) corresponding nanosheets (HE‐MOF‐NS) capable realizing visible‐light‐driven HER. Both HE‐MOF‐SC HE‐MOF‐NS exhibit higher activity than all single‐metal MOFs, which are supposed be ascribed interplay between different metal nodes that enables more efficient charge transfer. Moreover, impressively, demonstrates much its thin thickness enhanced surface area. At optimum conditions, rate H 2 ≈13.24 mmol h −1 g , among highest values reported water‐stable MOF photocatalysts. This work highlights importance developing advanced toward photocatalysis.