Constructing single atom sites on bipyridine covalent organic frameworks for selective electrochemical production of H2O2

Shaoda Huang; Bingyan Zhang; Huimin Sun; Hongyin Hu; Jinyan Wang; Fang Duan; Han Zhu; Mingliang Du; Shuanglong Lu

doi:10.1039/d3cc02948d

Constructing single atom sites on bipyridine covalent organic frameworks for selective electrochemical production of H₂O₂

Chem Commun (Camb). 2023 Aug 24;59(69):10424-10427. doi: 10.1039/d3cc02948d.

Authors

Shaoda Huang^{1

2}, Bingyan Zhang¹, Huimin Sun¹, Hongyin Hu¹, Jinyan Wang¹, Fang Duan¹, Han Zhu¹, Mingliang Du¹, Shuanglong Lu¹

Affiliations

¹ Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China. lushuanglong@jiangnan.edu.cn.
² School of Materials Science and Engineering, Natural Sciences and Science Education in National Institute of Education, Nanyang Technological University, Singapore, 637616, Singapore.

PMID: 37555232
DOI: 10.1039/d3cc02948d

Abstract

We developed a series of single atom catalysts (SACs) anchored on bipyridine-rich COFs. By tuning the active metal center, the optimal Py-Bpy-COF-Zn shows the highest selectivity of 99.1% and excellent stability toward H₂O₂ production via oxygen reduction, which can be attributed to the high *OOH dissociation barrier indicated by the theoretical calculations. As a proof of concept, it acts as a cathodic catalyst in a homemade Zn-air battery, together with efficient wastewater treatment.