# Engineering unsymmetrically coordinated Cu-S1N3 single atom sites with enhanced oxygen reduction activity

“Engineering unsymmetrically coordinated Cu-S1N3 single atom sites with enhanced oxygen reduction activity” (2020), by Huishan Shang et al. Energy research paper. Original abstract below, unchanged. A free PDF is available.

- Authors: Huishan Shang, Xiangyi Zhou, Juncai Dong, Ang Li, Xu Zhao, Qinghua Liu, Yue Lin, Jiajing Pei, Zhi Li, Zhuoli Jiang et al.
- Published: June 16, 2020
- Field: Energy
- DOI: https://doi.org/10.1038/s41467-020-16848-8
- Free PDF: https://www.nature.com/articles/s41467-020-16848-8.pdf

## Abstract

Atomic interface regulation is thought to be an efficient method to adjust the performance of single atom catalysts. Herein, a practical strategy was reported to rationally design single copper atoms coordinated with both sulfur and nitrogen atoms in metal-organic framework derived hierarchically porous carbon (S-Cu-ISA/SNC). The atomic interface configuration of the copper site in S-Cu-ISA/SNC is detected to be an unsymmetrically arranged Cu-S 1 N 3 moiety. The catalyst exhibits excellent oxygen reduction reaction activity with a half-wave potential of 0.918 V vs. RHE. Additionally, through in situ X-ray absorption fine structure tests, we discover that the low-valent Cuprous-S 1 N 3 moiety acts as an active center during the oxygen reduction process. Our discovery provides a universal scheme for the controllable synthesis and performance regulation of single metal atom catalysts toward energy applications.

Canonical page: https://nerdi.pages.dev/paper/W3034967233
Read three real papers a day in Nerdi (iPhone): https://apps.apple.com/app/apple-store/id6813826387?pt=128757794&ct=web-paper&mt=8