Biomass-derived N,S co-doped 3D multichannel carbon supported Au@Pd@Pt catalysts for oxygen reduction

A beancurd-derived mesoporous carbon (NSC) was prepared by an environmentally friendly procedure, and then it was investigated as Au@Pd@Pt core-shell catalysts support (Au@Pd@Pt-NSC) for oxygen reduction reaction (ORR). The Au@Pd@Pt-NSC (E1/2 = 0.91 V) has a marginally negative ORR half-wave potenti...

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Bibliographic Details
Published in:Environmental research 2021-11, Vol.202, p.111684-111684, Article 111684
Main Authors: Sun, Yegeng, Zhang, Wei, Wang, Qing, Han, Ning, Núñez-Delgado, Avelino, Cao, Yue, Si, Weimeng, Wang, Fagang, Liu, Shaomin
Format: Article
Language:English
Subjects:
Biomass
Carbon
Co-doping
Electrochemistry
ORR
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Summary:A beancurd-derived mesoporous carbon (NSC) was prepared by an environmentally friendly procedure, and then it was investigated as Au@Pd@Pt core-shell catalysts support (Au@Pd@Pt-NSC) for oxygen reduction reaction (ORR). The Au@Pd@Pt-NSC (E1/2 = 0.91 V) has a marginally negative ORR half-wave potential compared with other materials, in particular Pt/C (E1/2 = 0.87 V) and Au@Pd@Pt–C (E1/2 = 0.81 V). The specific and mass activities of the Au@Pd@Pt-NSC were 5 and 13 times higher than the commercial a Pt/C catalyst. After 20000 cycles of rapid durability test, the Au@Pd@Pt-NSC sample showed a loss of just 4.9% compared with the initial ECSA area, which can be attributed to the favorable interaction between Au@Pd@Pt and NSC. These results can be considered of environmental relevance and high potential applicability. [Display omitted] •Tufo-derived mesoporous carbon was developed as platform for loding Au @ Pd @ Pt catalyst.•Au @ Pd @ Pt-NSC displays competitive catalytic activity for O2 reduction compared to Pt/C.•Au @ Pd @ Pt-NSC electrocatalyst exhibits excellent stability.
ISSN:0013-9351
1096-0953
DOI:10.1016/j.envres.2021.111684