Metal-Free Bifunctional Ordered Mesoporous Carbon for Reversible Zn-CO2 Batteries

Sanshuang Gao; Yifan Liu; Zhongyuan Xie; Yuan Qiu; Longchao Zhuo; Yongji Qin; Junqiang Ren; Shusheng Zhang; Guangzhi Hu; Jun Luo; Xijun Liu

doi:10.1002/smtd.202001039

Metal-Free Bifunctional Ordered Mesoporous Carbon for Reversible Zn-CO₂ Batteries

Sanshuang Gao, Yifan Liu, Zhongyuan Xie, Yuan Qiu, Longchao Zhuo, Yongji Qin, Junqiang Ren, Shusheng Zhang, Guangzhi Hu, Jun Luo, Xijun Liu

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

78 Scopus citations

Abstract

The fabrication of Zn-CO₂ batteries is a promising technique for CO₂ fixation and energy storage. Herein, nitrogen-doped ordered mesoporous carbon (NOMC) is adopted as a bifunctional metal-free electrocatalyst for CO₂ reduction and oxygen evolution reaction in the near-neutral electrolyte. The ordered mesoporous structures and abundant N-dopings of NOMC facilitate the accessibility and utilization of the active sites, which endow NOMC with excellent electrocatalysis performance and outstanding stability. Especially, a nearly 100% CO Faradaic efficiency is achieved at an ultralow overpotential of 360 mV for CO₂ reduction. When constructed as an aqueous rechargeable Zn-CO₂ battery using NOMC as the cathode, it yields a high peak power density of 0.71 mW cm⁻², a good cyclability of 300 cycles, and excellent energy efficiency of 52.8% at 1.0 mA cm⁻².

Original language	English
Article number	2001039
Journal	Small Methods
Volume	5
Issue number	4
DOIs	https://doi.org/10.1002/smtd.202001039
State	Published - Apr 15 2021
Externally published	Yes

Funding

S.S.G. and Y.F.L. contributed equally to this work. This work was financially supported by National Key R&D Program of China (2017YFA0700104 and 2019YFC1804400), National Natural Science Foundation of China (21601136, 62005173, 51971157, 22075211, 21677171, 21505154, 51621001 and 51761165012), Tianjin Science Fund for Distinguished Young Scholars (19JCJQJC61800), the Science and Technology Development Fund of Tianjin Education Commission for Higher Education (No. 2018KJ126) and the Double Tops Joint Fund of the Yunnan Science and Technology Bureau and Yunnan University (2019FY003025).

Funders	Funder number
Double Tops Joint Fund of the Yunnan Science and Technology Bureau and Yunnan University	2019FY003025
Science and Technology Development Fund of Tianjin Education Commission for Higher Education	2018KJ126
Tianjin Science Fund for Distinguished Young Scholars	19JCJQJC61800
National Natural Science Foundation of China	21601136, 51621001, 21677171, 62005173, 51761165012, 51971157, 22075211, 21505154
National Key Research and Development Program of China	2019YFC1804400, 2017YFA0700104

Keywords

Zn-CO batteries
bifunctional catalysts
carbon dioxide reduction
metal-free catalysts
nitrogen-doped ordered mesoporous carbon

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1002/smtd.202001039

Cite this

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title = "Metal-Free Bifunctional Ordered Mesoporous Carbon for Reversible Zn-CO2 Batteries",

abstract = "The fabrication of Zn-CO2 batteries is a promising technique for CO2 fixation and energy storage. Herein, nitrogen-doped ordered mesoporous carbon (NOMC) is adopted as a bifunctional metal-free electrocatalyst for CO2 reduction and oxygen evolution reaction in the near-neutral electrolyte. The ordered mesoporous structures and abundant N-dopings of NOMC facilitate the accessibility and utilization of the active sites, which endow NOMC with excellent electrocatalysis performance and outstanding stability. Especially, a nearly 100% CO Faradaic efficiency is achieved at an ultralow overpotential of 360 mV for CO2 reduction. When constructed as an aqueous rechargeable Zn-CO2 battery using NOMC as the cathode, it yields a high peak power density of 0.71 mW cm−2, a good cyclability of 300 cycles, and excellent energy efficiency of 52.8% at 1.0 mA cm−2.",

keywords = "Zn-CO batteries, bifunctional catalysts, carbon dioxide reduction, metal-free catalysts, nitrogen-doped ordered mesoporous carbon",

author = "Sanshuang Gao and Yifan Liu and Zhongyuan Xie and Yuan Qiu and Longchao Zhuo and Yongji Qin and Junqiang Ren and Shusheng Zhang and Guangzhi Hu and Jun Luo and Xijun Liu",

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year = "2021",

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doi = "10.1002/smtd.202001039",

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AU - Gao, Sanshuang

AU - Liu, Yifan

AU - Xie, Zhongyuan

AU - Qiu, Yuan

AU - Zhuo, Longchao

AU - Qin, Yongji

AU - Ren, Junqiang

AU - Zhang, Shusheng

AU - Hu, Guangzhi

AU - Luo, Jun

AU - Liu, Xijun

PY - 2021/4/15

Y1 - 2021/4/15

N2 - The fabrication of Zn-CO2 batteries is a promising technique for CO2 fixation and energy storage. Herein, nitrogen-doped ordered mesoporous carbon (NOMC) is adopted as a bifunctional metal-free electrocatalyst for CO2 reduction and oxygen evolution reaction in the near-neutral electrolyte. The ordered mesoporous structures and abundant N-dopings of NOMC facilitate the accessibility and utilization of the active sites, which endow NOMC with excellent electrocatalysis performance and outstanding stability. Especially, a nearly 100% CO Faradaic efficiency is achieved at an ultralow overpotential of 360 mV for CO2 reduction. When constructed as an aqueous rechargeable Zn-CO2 battery using NOMC as the cathode, it yields a high peak power density of 0.71 mW cm−2, a good cyclability of 300 cycles, and excellent energy efficiency of 52.8% at 1.0 mA cm−2.

AB - The fabrication of Zn-CO2 batteries is a promising technique for CO2 fixation and energy storage. Herein, nitrogen-doped ordered mesoporous carbon (NOMC) is adopted as a bifunctional metal-free electrocatalyst for CO2 reduction and oxygen evolution reaction in the near-neutral electrolyte. The ordered mesoporous structures and abundant N-dopings of NOMC facilitate the accessibility and utilization of the active sites, which endow NOMC with excellent electrocatalysis performance and outstanding stability. Especially, a nearly 100% CO Faradaic efficiency is achieved at an ultralow overpotential of 360 mV for CO2 reduction. When constructed as an aqueous rechargeable Zn-CO2 battery using NOMC as the cathode, it yields a high peak power density of 0.71 mW cm−2, a good cyclability of 300 cycles, and excellent energy efficiency of 52.8% at 1.0 mA cm−2.

KW - Zn-CO batteries

KW - bifunctional catalysts

KW - carbon dioxide reduction

KW - metal-free catalysts

KW - nitrogen-doped ordered mesoporous carbon

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