An Efficient Interfacial Synthesis of Two‐Dimensional Metal–Organic Framework Nanosheets for Electrochemical Hydrogen Peroxide Production

• DOI: 10.1002/anie.202100897
• Publication Date: 2021-03-11T03:12:16Z
• Authors: Mengjun Wang; Xu Dong; Zhaodong Meng; Zhiwei Hu; Yan‐Gu Lin; Chun‐Kuo Peng; Hongshuai Wang; Chih‐Wen Pao; Songyuan Ding; Youyong Li; Qi Shao; Xiaoqing Huang
• Keywords: Overpotential

Abstract Two‐dimensional (2D) metal–organic framework nanosheets (MOF NSs) play a vital role in catalysis, but the most preparation is ultrasonication or solvothermal. Herein, liquid–liquid interfacial synthesis method has been developed for efficient fabrication of series 2D Ni MOF NSs. The active sites could be modulated by readily tuning ratios metal precursors and organic linkers (R M/L ). NSs display highly R dependent activities towards 2e oxygen reduction reaction (ORR) to hydrogen peroxide (H 2 O ), where with 6 exhibit optimal near‐zero overpotential, ca. 98 % H selectivity production rate 80 mmol g cat −1 h 0.1 M KOH. As evidenced X‐ray absorption fine structure spectroscopy, coordination environment changed from saturation unsaturation, partially unsaturated atoms are crucial create enhancing electrocatalysis.