Cu/Fe embedded N-doped carbon as a highly durable oxygen reduction electrocatalyst

Banafsha Habib; Shaowei Chen; Forrest Nichols; Shamraiz Hussain Talib; Nasima Arshad; Anham Zafar; Arshad Mahmood; Shahid Zaman; Naveed Kausar Janjua

doi:10.1039/d3ma00540b

Cu/Fe embedded N-doped carbon as a highly durable oxygen reduction electrocatalyst

Banafsha Habib
, Shaowei Chen
, Forrest Nichols
, Shamraiz Hussain Talib
, Nasima Arshad
, Anham Zafar
, Arshad Mahmood
, Shahid Zaman
, Naveed Kausar Janjua

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Dual metal atoms embedded into carbon are emerging electrocatalysts due to synergistic interaction. Herein, copper and iron dual-atoms embedded in a nitrogen-doped carbon support with abundant metal-nitrogen moieties are fabricated via zinc imidazole framework pyrolysis. Hollow nitrogen-doped carbon (HNC) containing Cu/Fe-N_x moieties (Cu : Fe/HNC) shows excellent oxygen reduction activity with a half-wave potential of 0.84 V in alkaline media. Furthermore, the Cu : Fe/HNC exhibits remarkable stability and strong anti-poisoning ability due to the synergistic interaction of the Cu/Fe-N_x moieties in the HNC architecture. Density functional theory calculations revealed the optimum adsorption and desorption of oxygen intermediates due to the synergistic interaction of Cu-N_x and Fe-N_x sites, resulting in improved oxygen reduction performance. This work provides a facile synthesis of dual metal atom catalysts for developing low-cost, nonprecious metal-based ORR electrocatalysts.

Original language	British English
Pages (from-to)	5353-5360
Number of pages	8
Journal	Materials Advances
Volume	4
Issue number	21
DOIs	https://doi.org/10.1039/d3ma00540b
State	Published - 3 Oct 2023

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title = "Cu/Fe embedded N-doped carbon as a highly durable oxygen reduction electrocatalyst",

abstract = "Dual metal atoms embedded into carbon are emerging electrocatalysts due to synergistic interaction. Herein, copper and iron dual-atoms embedded in a nitrogen-doped carbon support with abundant metal-nitrogen moieties are fabricated via zinc imidazole framework pyrolysis. Hollow nitrogen-doped carbon (HNC) containing Cu/Fe-Nx moieties (Cu : Fe/HNC) shows excellent oxygen reduction activity with a half-wave potential of 0.84 V in alkaline media. Furthermore, the Cu : Fe/HNC exhibits remarkable stability and strong anti-poisoning ability due to the synergistic interaction of the Cu/Fe-Nx moieties in the HNC architecture. Density functional theory calculations revealed the optimum adsorption and desorption of oxygen intermediates due to the synergistic interaction of Cu-Nx and Fe-Nx sites, resulting in improved oxygen reduction performance. This work provides a facile synthesis of dual metal atom catalysts for developing low-cost, nonprecious metal-based ORR electrocatalysts.",

author = "Banafsha Habib and Shaowei Chen and Forrest Nichols and Talib, \{Shamraiz Hussain\} and Nasima Arshad and Anham Zafar and Arshad Mahmood and Shahid Zaman and Janjua, \{Naveed Kausar\}",

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year = "2023",

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doi = "10.1039/d3ma00540b",

language = "British English",

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journal = "Materials Advances",

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TY - JOUR

T1 - Cu/Fe embedded N-doped carbon as a highly durable oxygen reduction electrocatalyst

AU - Habib, Banafsha

AU - Chen, Shaowei

AU - Nichols, Forrest

AU - Talib, Shamraiz Hussain

AU - Arshad, Nasima

AU - Zafar, Anham

AU - Mahmood, Arshad

AU - Zaman, Shahid

AU - Janjua, Naveed Kausar

PY - 2023/10/3

Y1 - 2023/10/3

N2 - Dual metal atoms embedded into carbon are emerging electrocatalysts due to synergistic interaction. Herein, copper and iron dual-atoms embedded in a nitrogen-doped carbon support with abundant metal-nitrogen moieties are fabricated via zinc imidazole framework pyrolysis. Hollow nitrogen-doped carbon (HNC) containing Cu/Fe-Nx moieties (Cu : Fe/HNC) shows excellent oxygen reduction activity with a half-wave potential of 0.84 V in alkaline media. Furthermore, the Cu : Fe/HNC exhibits remarkable stability and strong anti-poisoning ability due to the synergistic interaction of the Cu/Fe-Nx moieties in the HNC architecture. Density functional theory calculations revealed the optimum adsorption and desorption of oxygen intermediates due to the synergistic interaction of Cu-Nx and Fe-Nx sites, resulting in improved oxygen reduction performance. This work provides a facile synthesis of dual metal atom catalysts for developing low-cost, nonprecious metal-based ORR electrocatalysts.

AB - Dual metal atoms embedded into carbon are emerging electrocatalysts due to synergistic interaction. Herein, copper and iron dual-atoms embedded in a nitrogen-doped carbon support with abundant metal-nitrogen moieties are fabricated via zinc imidazole framework pyrolysis. Hollow nitrogen-doped carbon (HNC) containing Cu/Fe-Nx moieties (Cu : Fe/HNC) shows excellent oxygen reduction activity with a half-wave potential of 0.84 V in alkaline media. Furthermore, the Cu : Fe/HNC exhibits remarkable stability and strong anti-poisoning ability due to the synergistic interaction of the Cu/Fe-Nx moieties in the HNC architecture. Density functional theory calculations revealed the optimum adsorption and desorption of oxygen intermediates due to the synergistic interaction of Cu-Nx and Fe-Nx sites, resulting in improved oxygen reduction performance. This work provides a facile synthesis of dual metal atom catalysts for developing low-cost, nonprecious metal-based ORR electrocatalysts.

UR - https://www.scopus.com/pages/publications/85175302407

U2 - 10.1039/d3ma00540b

DO - 10.1039/d3ma00540b

M3 - Article

AN - SCOPUS:85175302407

SN - 2633-5409

VL - 4

SP - 5353

EP - 5360

JO - Materials Advances

JF - Materials Advances

IS - 21

ER -

Cu/Fe embedded N-doped carbon as a highly durable oxygen reduction electrocatalyst

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