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Metal-free catalytic reduction of 4-nitrophenol to 4-aminophenol by N-doped graphene

Kong, Xiang-kai, Sun, Zhi-yuan, Chen, Min, Chen, Chang-le, Chen, Qian-wang·2013·Energy & Environmental Science

Abstract

The metal-free catalytic reduction of 4-nitrophenol (Nip) to 4-aminophenol (Amp) mediated by N-doped graphene (NG) was reported. Nip could be reduced to Amp completely without any by-product generation. The activity of the NG is comparable with some of the previously reported metallic catalysts. Interestingly, the NG sheet catalyzed reaction follows pseudo-zero-order kinetics, while all the metallic catalysts follow pseudo-first-order kinetics. The in situ FTIR experiment demonstrated that Nip ions will combine with NG via the O atoms of their hydroxyl groups. Theoretical calculations verified this adsorption model, and confirmed that the adsorption of Nip ions is the critical step, leading to the pseudo-zero-order kinetics. Moreover, only the carbon atoms next to the doped N atoms on NG surface can be activated, serving as the active sites. As expected, all four kinds of the doped N atoms are beneficial to the adsorption and activation of Nip, contributing to the catalytic reduction reaction.

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Metadata

Authors
Kong, X.-K., Sun, Z.-Y., Chen, M., Chen, C.-L., & Chen, Q.-W.
Venue
Energy & Environmental Science
Published
2013
Volume
6
Issue
11
Pages
3260
ISSN
  • 1754-5692 (ISSN-L)
  • 1754-5706
OpenAlex
W2062005314
Cited by
443
References
1
FWCI
13.86
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Metal-free catalytic reduction of 4-nitrophenol to 4-aminophenol by N-doped graphene. https://app.cochat.ai/papers/10.1039/c3ee40918j
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Kong, X.-K., Sun, Z.-Y., Chen, M., Chen, C.-L., & Chen, Q.-W. (2013). Metal-free catalytic reduction of 4-nitrophenol to 4-aminophenol by N-doped graphene. Energy & Environmental Science. https://doi.org/10.1039/c3ee40918j

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