Loading Single-Ni Atoms on Assembled Hollow N-Rich Carbon Plates for Efficient CO2 Electroreduction

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

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Author(s)

  • Yunxiang Li
  • Song Lin Zhang
  • Weiren Cheng
  • Ye Chen
  • Shuyan Gao

Detail(s)

Original languageEnglish
Article number2105204
Journal / PublicationAdvanced Materials
Volume34
Issue number1
Online published5 Oct 2021
Publication statusPublished - 6 Jan 2022
Externally publishedYes

Abstract

The rational design of catalysts’ spatial structure is vitally important to boost catalytic performance through exposing the active sites, enhancing the mass transfer, and confining the reactants. Herein, a dual-linker zeolitic tetrazolate framework-engaged strategy is developed to construct assembled hollow plates (AHP) of N-rich carbon (NC), which is loaded with single-Ni atoms to form a highly efficient electrocatalyst (designated as Ni-NC(AHP)). In the carbonization process, the thermally unstable linker (5-aminotetrazole) serves as the self-sacrificial template and the other linker (2-methylimidazole) mainly serves as the carbon and nitrogen source to form hollow NC matrix. The formed Ni-NC(AHP) catalyst possesses enhanced mesoporosity and more available surface area, thus promoting mass transport and affording abundant accessible single-Ni sites. These features contribute to remarkable performance for electrochemical CO2 reduction with exceptionally high selectivity of nearly 100% towards CO in a wide potential range and dramatically enhanced CO partial current density. © 2021 Wiley-VCH GmbH

Research Area(s)

  • CO2 reduction, electrocatalysis, hollow carbon, single-atom catalysts

Citation Format(s)

Loading Single-Ni Atoms on Assembled Hollow N-Rich Carbon Plates for Efficient CO2 Electroreduction. / Li, Yunxiang; Zhang, Song Lin; Cheng, Weiren et al.
In: Advanced Materials, Vol. 34, No. 1, 2105204, 06.01.2022.

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