Research Article

|

2021, 14(12): 4650–4657

|

https://doi.org/10.1007/s12274-021-3397-9

Elucidating the electro-catalytic oxidation of hydrazine over carbon nanotube-based transition metal single atom catalysts

Jin Zhang1, Yaxin Wang1, Chujie Yang2, Sian Chen1, Zhengjian Li1, Yi Cheng2 (✉), Haining Wang1 (✉), Yan Xiang1, Shanfu Lu1, and Shuangyin Wang3

View Author's information

1 Beijing Key Laboratory of Bio-inspired Energy Materials and Devices & School of Space and Environment, Beihang University, Beijing 100191, China
2 Department of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha 410083, China
3 State Key Laboratory of Chem/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China

Keywords: hydrazine oxidation, single atom catalyst, transition metals, differential electrochemical mass spectroscopy, direct hydrazine fuel cell
Full article PDF
Cite this article(Endnote)
Share this article
Metric

views: 46

Citations: 0

  • Abstract
  • References
  • Electronic Supplementary Material
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.
Related Article
Cite this article

Elucidating the electro-catalytic oxidation of hydrazine over carbon nanotube-based transition metal single atom catalysts. Nano Res. 2021, 14(12): 4650–4657 https://doi.org/10.1007/s12274-021-3397-9

Download citation