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

Huiying TIAN; Ziyi SHUI; Muhammad Ali RAZA; Liangliang ZHU; Xi CHEN

doi:10.1016/j.jallcom.2023.170544

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

Huiying TIAN, Ziyi SHUI, Muhammad Ali RAZA, Liangliang ZHU, Xi CHEN^*

^*Corresponding author for this work

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

3 Citations (Scopus)

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 FE_CO with robust durability. Above 89% of FE_CO 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	Published - 5 Oct 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 Elsevier B.V.

Funding

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).

Keywords

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

Access to Document

10.1016/j.jallcom.2023.170544

Cite this

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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 = "Huiying TIAN and Ziyi SHUI and RAZA, {Muhammad Ali} and Liangliang ZHU and Xi CHEN",

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AU - TIAN, Huiying

AU - SHUI, Ziyi

AU - RAZA, Muhammad Ali

AU - ZHU, Liangliang

AU - CHEN, Xi

PY - 2023/10/5

Y1 - 2023/10/5

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.

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