Site-Specified Two-Dimensional Heterojunction of Pt Nanoparticles/Metal–Organic Frameworks for Enhanced Hydrogen Evolution

• DOI: 10.1021/jacs.1c06006
• Publication Date: 2021-10-04T04:55:07Z
• Authors: Mengjun Wang; Yong Xu; Chun-Kuo Peng; San-Yuan Chen; Yan-Gu Lin; Zhiwei Hu; Li Sun; Songyuan Ding; Chih-Wen Pao; Qi Shao; Xiaoqing Huang
• Keywords: metal ions leads; 670; Chemical Sciences not elsewhere classified; 01 natural sciences; optimal catalyst displays; building blocks; pt nanoparticles; Space Science; slow reduction; rapid reduction; reduction kinetics; unique interface; activities superior; strong synergy; material design; alkaline conditions; many potential applications; random distribution; specified two; precisely regulating; metal nps; metal ions; first time; oriented growth; dimensional heterojunction; commercial pt; metal ions results; hydrogen evolution reaction; ultrasmall metal nanoparticles; 0104 chemical sciences; Astronomical and Space Sciences not elsewhere classified; Mental Health; Infectious Diseases; random growth; Medicine; mof nss; promote research interest; Physical Sciences not elsewhere classified

Heterojunction nanostructures usually exhibit enhanced properties in compariosn with their building blocks and are promising catalyst candidates due to combined surface unique interface. Here, for the first time we realized oriented growth of ultrasmall metal nanoparticles (NPs) on metal–organic framework nanosheets (MOF NSs) by precisely regulating reduction kinetics ions solvents. In particular, a rapid leads random distribution NPs MOF NSs, while slow results edge NSs. Impressively, strong synergy between Pt NSs significantly enhances hydrogen evolution reaction (HER) performance, optimal displays HER activities superior those composite commercial Pt/C under both acidic alkaline conditions. Moreover, versatility such has been extended other NPs, as Pd, Ag, Au. We believe this work will promote research interest material design many potential applications.