Chemical Research in Chinese Universities ›› 2023, Vol. 39 ›› Issue (6): 948-953.doi: 10.1007/s40242-023-2305-0

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Ball-milling Synthesis of Single-atom Cu Anchored on N-Doped Carbon for Mimicking Peroxidase

XU Henan1, ZHANG Lingling2,3, WANG Huilin3, ZHANG Shaopeng1, LI Wei1,2, WANG Xiao3, SONG Shuyan3, WANG Daguang1, and SHI Zhan2   

  1. 1. Department of Gastric and Colorectal Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun 130021, P.R. China;
    2. College of Chemistry, Jilin University, Changchun 130012, P.R. China;
    3. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P.R. China
  • Received:2022-10-27 Online:2023-12-01 Published:2023-11-18
  • Contact: LI Wei, WANG Xiao, WANG Daguang E-mail:weili8308@jlu.edu.cn;wangxiao@ciac.ac.cn;dgwang@jlu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (No.52072142) and the Key Projects of Jilin Province Science and Technology Development Plan, China (No.20220203148SF).

Abstract: Nanozymes have shown great potential for life sciences owing to their distinct advantages, such as low cost and high stability, compared with natural enzymes. Despite significant progress, state-of-art nanozymes commonly suffer from relatively low specific activities. Herein, we propose a promising to address this issue by creating single-atom nanozymes. A ball- milling-assisted strategy has been developed to induce the transformation of Cu species from bulk to single atoms. The highly- simplified steps allow a large-scale synthesis, that over 4.2 g of single-atom Cu-N doped carbon nanozymes can be achieved in one pot. It exhibits a remarkably improved peroxidase-like activity and stability compared with N doped C anchored Cu nanoparticles. Further experimental firmly reveals the crucial role of the single-atom Cu site that can generate more active ·OH species for boosting the catalytic process.

Key words: Nanozyme, Peroxidase-like activity, Single atom, Catalyst