@article{Wu2023, 
author = {Meng-xue Wu and Jin-fu Ma and Zi-yi Liu and Hui-ze Liu and Guan-dong Wang and Xuan-Yi Chen and Zhi-cong Shi},
title = {Zn/Fe Nanoparticles Co-embedded with Carbon Nanotubes Improve the Oxygen Reduction Reaction Performance},
year = {2023},
journal = {Journal of Guangdong University of Technology},
volume = {40},
number = {6},
pages = {106-113},
keywords = {oxygen reduction reaction, N, S doped carbon nanotubes, ZIF-8, pyrolysis, carbon materials},
url = {https://www.sciopen.com/article/10.12052/gdutxb.230114},
doi = {10.12052/gdutxb.230114},
abstract = {The development of low-cost, highly stable, and catalytically active oxygen reduction reaction (ORR) non-precious metal catalysts is essential for fuel cells and metal-air batteries applications. In this study, the one-step synthesis of composite catalysts of ZnFe nanoparticles embedded with nitrogen and sulfur doped carbon nanotubes (ZnS-FeS-Fe3C/S, NCNT) was reported using ZIF-8 as precursor. The sample of ZFF/S, NCNT-8 after the optimal calcination temperature was determined by electrochemical tests to be onset potential of 0.99 V vs. RHE and a half-wave potential of 0.84 V vs. RHE, as well as a good methanol tolerance and long-term durability comparable to commercial Pt/C. It is also proposed that S, N co-doped carbon nanotube (CNT) and additional ZnS, FeS and Fe3C providing active sites can enhance the ORR catalytic performance. The in-situ growth CNT method used in the study can provide ideas for the preparation of cathode catalysts for fuel cells and metal-air batteries.}
}