J. Mater. Sci. Technol. ›› 2023, Vol. 137: 215-222.DOI: 10.1016/j.jmst.2022.07.041

• Research Article • Previous Articles     Next Articles

Tellurium intervened Fe-N codoped carbon for improved oxygen reduction reaction and high-performance Zn-air batteries

Rui Wanga,b, Zihan Mengb, Xuemin Yanc, Tian Tiana,b,**, Ming Leid, Rami Adel Pashameahe, Hala M. Abo-Dieff, Hassan Algadig, Nina Huangh,i, Zhanhu Guoi,*, Haolin Tanga,b,j,**   

  1. a State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;
    bFoshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan 528200, China;
    cCollege of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, China;
    dState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    eDepartment of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah 24230, Saudi Arabia;
    fDepartment of Science and Technology, University College-Ranyah, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
    gDepartment of Electrical Engineering, Faculty of Engineering, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia;
    hCollege of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China;
    iDepartment of Chemical and Bimolecular Engineering, Integrated Composites Laboratory (ICL), University of Tennessee, Knoxville, TN 37996, USA;
    jGuangdong Hydrogen Energy Institute of WHUT, Xianhu Hydrogen Valley, Foshan 528200, China
  • Received:2022-06-19 Revised:2022-07-14 Accepted:2022-07-15 Published:2023-02-20 Online:2023-02-15
  • Contact: **State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China. Ttcx@whut.edu.cn (T. Tian), *E-mail addresses: nanomaterials2000@gmail.com (Z. Guo), **State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China. Thln@whut.edu.cn (H. Tang).

Abstract: Pyrolysis-acquired iron and nitrogen codoped carbon (Fe-N-C) has been comprehensively investigated for its promising oxygen reduction reaction (ORR) catalytic performance and structural complexity. The modification of non-metal elements with larger atomic radius and the corresponding intrinsic microstructure-property relations are rarely reported. In this study, tellurium (Te) intervened Fe-N-C was prepared by micelles-induced polymerization with Te nanowires as an in-situ intervening agent. The out-plane bonding of Te with Fe induced the increase of both N content and proportion of pyridinic N on the material surface, thus improving the ORR catalytic performance. The assembled Zn-air battery demonstrated a maximum power density of 250 mW/cm2 and excellent rate capability under various discharge current densities, which was much better than the Pt/C. Overall, the current work demonstrates a novel Te/Fe-N-C material and reveals an original Te intervened Fe-N-C strategy and N reconfiguration mechanism, which is of great significance for the design of key materials in energy-related fields.

Key words: Te/Fe-N-C, Assembly, ORR, Electrocatalysis, Zn-air battery