Atomically Dispersed Fe-Heteroatom (N, S) Bridge Sites Anchored on Carbon Nanosheets for Promoting Oxygen Reduction Reaction

Mengran Wang; Wenjuan Yang; Xinzhe Li; Yangsen Xu; Lirong Zheng; Chenliang Su; Bin Liu

doi:10.1021/acsenergylett.0c02484

Atomically Dispersed Fe-Heteroatom (N, S) Bridge Sites Anchored on Carbon Nanosheets for Promoting Oxygen Reduction Reaction

Mengran Wang
, Wenjuan Yang
, Xinzhe Li
, Yangsen Xu
, Lirong Zheng
, Chenliang Su^*
, Bin Liu^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

238 Citations (Scopus)

Abstract

Single Fe atom dispersed carbon nanostructures show promising oxygen reduction reaction (ORR) activities for renewable energy applications. Nevertheless, the microenvironment of the single Fe atoms needs to be further engineered to optimize the catalytic performance, which is challenging. In this work, we develop a NaCl-template pyrolysis method to fabricate single Fe atom catalysts with atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets. The N and S coordinated Fe atomic sites (FeN₃S) are found to induce charge redistribution, lowering the binding strength of oxygenated reaction intermediates and leading to fast reaction kinetics and good oxygen reduction activity. Our work provides an effective method to regulate the microenvironment of single-atom catalysts for optimizing electrocatalytic performance. © 2021 American Chemical Society.

Original language	English
Pages (from-to)	379-386
Journal	ACS Energy Letters
Volume	6
Issue number	2
Online published	6 Jan 2021
DOIs	https://doi.org/10.1021/acsenergylett.0c02484
Publication status	Published - 12 Feb 2021
Externally published	Yes

Funding

The authors acknowledge the financial support from the Research Foundation of China Postdoctoral Science (2018M643177), National Natural Science Foundation of China (21972094), Guangdong Special Support Program, Pengcheng Scholar program, Shenzhen Peacock Plan (KQTD2016053112042971), and the Science and Technology Planning Project of Shenzhen of China (JCYJ20190808141809282). The authors also acknowledge the support of the 1W1B beamline of Beijing Synchrotron radiation facility (BSRF).

UN SDGs

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

SDG 7 Affordable and Clean Energy

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10.1021/acsenergylett.0c02484

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title = "Atomically Dispersed Fe-Heteroatom (N, S) Bridge Sites Anchored on Carbon Nanosheets for Promoting Oxygen Reduction Reaction",

abstract = "Single Fe atom dispersed carbon nanostructures show promising oxygen reduction reaction (ORR) activities for renewable energy applications. Nevertheless, the microenvironment of the single Fe atoms needs to be further engineered to optimize the catalytic performance, which is challenging. In this work, we develop a NaCl-template pyrolysis method to fabricate single Fe atom catalysts with atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets. The N and S coordinated Fe atomic sites (FeN3S) are found to induce charge redistribution, lowering the binding strength of oxygenated reaction intermediates and leading to fast reaction kinetics and good oxygen reduction activity. Our work provides an effective method to regulate the microenvironment of single-atom catalysts for optimizing electrocatalytic performance. {\textcopyright} 2021 American Chemical Society.",

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AU - Wang, Mengran

AU - Yang, Wenjuan

AU - Li, Xinzhe

AU - Xu, Yangsen

AU - Zheng, Lirong

AU - Su, Chenliang

AU - Liu, Bin

PY - 2021/2/12

Y1 - 2021/2/12

N2 - Single Fe atom dispersed carbon nanostructures show promising oxygen reduction reaction (ORR) activities for renewable energy applications. Nevertheless, the microenvironment of the single Fe atoms needs to be further engineered to optimize the catalytic performance, which is challenging. In this work, we develop a NaCl-template pyrolysis method to fabricate single Fe atom catalysts with atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets. The N and S coordinated Fe atomic sites (FeN3S) are found to induce charge redistribution, lowering the binding strength of oxygenated reaction intermediates and leading to fast reaction kinetics and good oxygen reduction activity. Our work provides an effective method to regulate the microenvironment of single-atom catalysts for optimizing electrocatalytic performance. © 2021 American Chemical Society.

AB - Single Fe atom dispersed carbon nanostructures show promising oxygen reduction reaction (ORR) activities for renewable energy applications. Nevertheless, the microenvironment of the single Fe atoms needs to be further engineered to optimize the catalytic performance, which is challenging. In this work, we develop a NaCl-template pyrolysis method to fabricate single Fe atom catalysts with atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets. The N and S coordinated Fe atomic sites (FeN3S) are found to induce charge redistribution, lowering the binding strength of oxygenated reaction intermediates and leading to fast reaction kinetics and good oxygen reduction activity. Our work provides an effective method to regulate the microenvironment of single-atom catalysts for optimizing electrocatalytic performance. © 2021 American Chemical Society.

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U2 - 10.1021/acsenergylett.0c02484

DO - 10.1021/acsenergylett.0c02484

M3 - RGC 21 - Publication in refereed journal

SN - 2380-8195

VL - 6

SP - 379

EP - 386

JO - ACS Energy Letters

JF - ACS Energy Letters

IS - 2

ER -

Atomically Dispersed Fe-Heteroatom (N, S) Bridge Sites Anchored on Carbon Nanosheets for Promoting Oxygen Reduction Reaction

Abstract

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