Synthesis of N-Doped Highly Graphitic Carbon Urchin-Like Hollow Structures Loaded with Single-Ni Atoms towards Efficient CO2 Electroreduction

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Article numbere202201491
Journal / PublicationAngewandte Chemie - International Edition
Volume61
Issue number18
Online published23 Feb 2022
Publication statusPublished - 25 Apr 2022
Externally publishedYes

Abstract

The rational design of single-atom catalysts featuring excellent conductivity, highly accessible discrete active sites and favorable mass transfer is crucial for electrocatalysis but remains challenging. In this study, a reliable Ni-catalyzed and Ni-templated strategy is developed to synthesize a single-atom catalyst by transforming metallic Ni into single-Ni atoms anchored on hollow porous urchin-like (HPU) N-doped carbon (NC) (designated as Ni-NC(HPU)), which possesses high crystallinity and sufficient Ni-N4 moiety (2.4 wt %). The unique hollow thorns on the surface, good conductivity and large external surface area facilitate electron/mass transfer and exposure of single-Ni sites. As a result, the Ni-NC(HPU) catalyst exhibits remarkable activity and high stability for CO2 electroreduction. Moreover, this synthetic strategy can also be facilely extended to prepare distinct hollow porous architectures with similar components, such as the wire- and sphere-like ones. © 2022 Wiley-VCH GmbH.

Research Area(s)

  • CO2 Reduction, Electrocatalysis, Hollow Porous Carbon, Single-Atom Catalysts

Citation Format(s)

Synthesis of N-Doped Highly Graphitic Carbon Urchin-Like Hollow Structures Loaded with Single-Ni Atoms towards Efficient CO2 Electroreduction. / Li, Yunxiang; Lu, Xue Feng; Xi, Shibo et al.
In: Angewandte Chemie - International Edition, Vol. 61, No. 18, e202201491, 25.04.2022.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review