Yingjie DONG, Haiting SHI, Shuo WANG, Chunying MIN, Daoxi WANG, Ruiqi SHAO, Zhiwei XU. Synthesis of nitrogen-doped graphyne/iron catalysts via γ-ray irradiation and their properties[J]. Journal of Radiation Research and Radiation Processing, 2024, 42(1): 010201
Journals >Journal of Radiation Research and Radiation Processing >Volume 42 >Issue 1 >Page 010201 > Article
- Journal of Radiation Research and Radiation Processing
- Vol. 42, Issue 1, 010201 (2024)
Fig. 1. (a) Flow chart of NGY-Fe catalyst preparation; (b) SEM image and (c) TEM image of NGY-Fe sample prepared after γ irradiation; (d) elemental distribution (C, N and Fe) plots of NGY-Fe samples obtained by SEM's built-in EDS
Fig. 2. (a) High-resolution core-grade XPS full spectra of NGY-Fe samples and GY samples after γ irradiation; (b) Raman spectra of NGY-Fe samples; high-resolution core-level XPS peak splitting spectra of (c) C1s, (d) Fe2p and (e) N1s
Fig. 3. (a) Cyclic voltammetry curves of NGY-Fe catalysts and commercial Pt/C catalysts in 0.1 mol/L KOH electrolyte; (b) polarisation curves of NGY-Fe catalyst and commercial Pt/C catalyst at 1 600 r/min (color online)
Fig. 4. (a) LSV curves of the optimal sample NGY-Fe1/2 at different rotational speeds; (b) K-L curves corresponding to the optimal sample NGY-Fe1/2 at different potentials; (c) nyquist plots of samples NGY-Fe1/2 and commercial Pt/C catalyst (color online)
Fig. 5. Number of (a) transferred electrons (n) of samples NGY-Fe1/2 and commercial Pt/C catalysts obtained according to RRDE experimental tests; (b) H2O2 yield during oxygen reduction reaction
Fig. 6. Tafel slope calculated based on the polarization data of oxygen reduction reaction of NGY-Fe1/2 catalyst and Pt/C catalyst
Fig. 7. (a) I-t curves of NGY-Fe1/2 catalyst and Pt/C catalyst; (b) Methanol tolerance curves for NGY-Fe1/2 catalyst and Pt/C catalyst
|
Table 1. Structural properties of the prepared catalysts and commercial Pt/C catalysts
|
Table 2. Oxygen reduction catalytic activity of prepared NGY-Fe catalysts and commercial Pt/C catalysts
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20