Synergistic catalysis of bimetallic nitrogen-doped carbon materials for efficient electrocatalytic CO2 reduction

H. TIAN; Z. SHUI; M.A. RAZA; L. ZHU; Xi CHEN

doi:10.1016/j.jallcom.2023.170544

Synergistic catalysis of bimetallic nitrogen-doped carbon materials for efficient electrocatalytic CO2 reduction

H. TIAN, Z. SHUI, M.A. RAZA, L. ZHU, Xi CHEN^*

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

Abstract

Long-term continuous operation and large-scale development are essential for practical applications of electrocatalytic CO2 reduction (ECR). Herein, Fe/Ni binary metal nitrogen-doped carbon (Fe/Ni-N-C) materials were successfully constructed and evaluated in typical H cell. The Fe/Ni-N-C electrocatalyst showed a highest CO Faradaic efficiency (FECO) of 92.9% at − 0.677 V vs. RHE and a largest turnover frequency of 10.77 × 103 h−1. After being transferred to a larger-scale continuous flow cell, Fe/Ni-N-C exhibited higher current density and FECO with robust durability. Above 89% of FECO was reserved after 40 h of electrolysis. It was found that the synergetic effects of the binary metals effectively enhanced the charge transfer rate and provided favorable kinetics. Based on Fe/Ni-N-C as the cathode, an aqueous Zn-CO2 battery was further assembled with excellent charge-discharge cycle stability, which could serve as the electricity supply for ECR. © 2023 Elsevier B.V.

Original language	English
Article number	170544
Journal	Journal of Alloys and Compounds
Volume	958
Early online date	11 May 2023
DOIs	https://doi.org/10.1016/j.jallcom.2023.170544
Publication status	E-pub ahead of print - 11 May 2023
Externally published	Yes

Bibliographical note

Funding Information:
This work was supported by the National Natural Science Foundation of China ( 11872302 ) and the Young Talent Support Program of Xi'an Science and Technology Association ( 095920221368 ).

Publisher Copyright:
© 2023 Elsevier B.V.

Keywords

Bimetallic nitrogen-doped carbon catalyst
Electrocatalytic CO reduction
Rechargeable Zn-CO battery
Synergistic catalysis

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10.1016/j.jallcom.2023.170544

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title = "Synergistic catalysis of bimetallic nitrogen-doped carbon materials for efficient electrocatalytic CO2 reduction",

abstract = "Long-term continuous operation and large-scale development are essential for practical applications of electrocatalytic CO2 reduction (ECR). Herein, Fe/Ni binary metal nitrogen-doped carbon (Fe/Ni-N-C) materials were successfully constructed and evaluated in typical H cell. The Fe/Ni-N-C electrocatalyst showed a highest CO Faradaic efficiency (FECO) of 92.9% at − 0.677 V vs. RHE and a largest turnover frequency of 10.77 × 103 h−1. After being transferred to a larger-scale continuous flow cell, Fe/Ni-N-C exhibited higher current density and FECO with robust durability. Above 89% of FECO was reserved after 40 h of electrolysis. It was found that the synergetic effects of the binary metals effectively enhanced the charge transfer rate and provided favorable kinetics. Based on Fe/Ni-N-C as the cathode, an aqueous Zn-CO2 battery was further assembled with excellent charge-discharge cycle stability, which could serve as the electricity supply for ECR. {\textcopyright} 2023 Elsevier B.V.",

keywords = "Bimetallic nitrogen-doped carbon catalyst, Electrocatalytic CO reduction, Rechargeable Zn-CO battery, Synergistic catalysis",

author = "H. TIAN and Z. SHUI and M.A. RAZA and L. ZHU and Xi CHEN",

note = "Funding Information: This work was supported by the National Natural Science Foundation of China ( 11872302 ) and the Young Talent Support Program of Xi'an Science and Technology Association ( 095920221368 ). Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2023",

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AU - TIAN, H.

AU - SHUI, Z.

AU - RAZA, M.A.

AU - ZHU, L.

AU - CHEN, Xi

N1 - Funding Information: This work was supported by the National Natural Science Foundation of China ( 11872302 ) and the Young Talent Support Program of Xi'an Science and Technology Association ( 095920221368 ). Publisher Copyright: © 2023 Elsevier B.V.

PY - 2023/5/11

Y1 - 2023/5/11

N2 - Long-term continuous operation and large-scale development are essential for practical applications of electrocatalytic CO2 reduction (ECR). Herein, Fe/Ni binary metal nitrogen-doped carbon (Fe/Ni-N-C) materials were successfully constructed and evaluated in typical H cell. The Fe/Ni-N-C electrocatalyst showed a highest CO Faradaic efficiency (FECO) of 92.9% at − 0.677 V vs. RHE and a largest turnover frequency of 10.77 × 103 h−1. After being transferred to a larger-scale continuous flow cell, Fe/Ni-N-C exhibited higher current density and FECO with robust durability. Above 89% of FECO was reserved after 40 h of electrolysis. It was found that the synergetic effects of the binary metals effectively enhanced the charge transfer rate and provided favorable kinetics. Based on Fe/Ni-N-C as the cathode, an aqueous Zn-CO2 battery was further assembled with excellent charge-discharge cycle stability, which could serve as the electricity supply for ECR. © 2023 Elsevier B.V.

AB - Long-term continuous operation and large-scale development are essential for practical applications of electrocatalytic CO2 reduction (ECR). Herein, Fe/Ni binary metal nitrogen-doped carbon (Fe/Ni-N-C) materials were successfully constructed and evaluated in typical H cell. The Fe/Ni-N-C electrocatalyst showed a highest CO Faradaic efficiency (FECO) of 92.9% at − 0.677 V vs. RHE and a largest turnover frequency of 10.77 × 103 h−1. After being transferred to a larger-scale continuous flow cell, Fe/Ni-N-C exhibited higher current density and FECO with robust durability. Above 89% of FECO was reserved after 40 h of electrolysis. It was found that the synergetic effects of the binary metals effectively enhanced the charge transfer rate and provided favorable kinetics. Based on Fe/Ni-N-C as the cathode, an aqueous Zn-CO2 battery was further assembled with excellent charge-discharge cycle stability, which could serve as the electricity supply for ECR. © 2023 Elsevier B.V.

KW - Bimetallic nitrogen-doped carbon catalyst

KW - Electrocatalytic CO reduction

KW - Rechargeable Zn-CO battery

KW - Synergistic catalysis

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DO - 10.1016/j.jallcom.2023.170544

M3 - Journal Article (refereed)

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SN - 0925-8388

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Synergistic catalysis of bimetallic nitrogen-doped carbon materials for efficient electrocatalytic CO2 reduction

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