@article{Zhang2021, 
author = {Jin Zhang and Yaxin Wang and Chujie Yang and Sian Chen and Zhengjian Li and Yi Cheng and Haining Wang and Yan Xiang and Shanfu Lu and Shuangyin Wang},
title = {Elucidating the electro-catalytic oxidation of hydrazine over carbon nanotube-based transition metal single atom catalysts},
year = {2021},
journal = {Nano Research},
volume = {14},
number = {12},
pages = {4650-4657},
keywords = {single atom catalyst, transition metals, hydrazine oxidation, differential electrochemical mass spectroscopy, direct hydrazine fuel cell},
url = {https://www.sciopen.com/article/10.1007/s12274-021-3397-9},
doi = {10.1007/s12274-021-3397-9},
abstract = {Elucidating the reaction mechanism of hydrazine oxidation reaction (HzOR) over carbon-based catalysts is highly propitious for the rational design of novel electrocatalysts for HzOR. In present work, isolated first-row transition metal atoms have been coordinated with N atoms on the graphite layers of carbon nanotubes via a M-N4-C configuration (MSA/CNT, M=Fe, Co and Ni). The HzOR over the three single atom catalysts follows a predominant 4-electron reaction pathway to emit N2 and a negligible 1-electron pathway to emit trace of NH3, while their electrocatalytic activity for HzOR is dominated by the absorption energy of N2H4 on them. Furthermore, FeSA/CNT reverses the passivation effect on Fe/C and shows superior performance than CoSA/CNT and NiSA/CNT with a recorded high mass activity for HzOR due to the higher electronic charge of Fe over Co and Ni in the M-N4-C configuration and the lowest absorption energy of N2H4 on FeSA/CNT among the three MSA/CNT catalysts.}
}