Porous Carbon-Hosted Atomically Dispersed Iron-Nitrogen Moiety as Enhanced Electrocatalysts for Oxygen Reduction Reaction in a Wide Range of pH

Shaofang Fu; Chengzhou Zhu; Dong Su; Junhua Song; Siyu Yao; Shuo Feng; Mark H. Engelhard; Dan Du; Yuehe Lin

doi:10.1002/smll.201703118

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Porous Carbon-Hosted Atomically Dispersed Iron-Nitrogen Moiety as Enhanced Electrocatalysts for Oxygen Reduction Reaction in a Wide Range of pH

Journal article

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Porous Carbon-Hosted Atomically Dispersed Iron-Nitrogen Moiety as Enhanced Electrocatalysts for Oxygen Reduction Reaction in a Wide Range of pH

Shaofang Fu, Chengzhou Zhu, Dong Su, Junhua Song, Siyu Yao, Shuo Feng, Mark H. Engelhard, Dan Du and Yuehe Lin

Small (Weinheim an der Bergstrasse, Germany), Vol.14(12), pp.1-7

03/2018

DOI: https://doi.org/10.1002/smll.201703118

PMID: 29430838

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Abstract

Chemistry

Chemistry, Multidisciplinary

Chemistry, Physical

Materials Science, Multidisciplinary

Nanoscience & Nanotechnology

Physics, Applied

Physics, Condensed Matter

Science & Technology

Materials Science

Physical Sciences

Physics

Technology

As one of the alternatives to replace precious metal catalysts, transition-metal-nitrogen-carbon (M-N-C) electrocatalysts have attracted great research interest due to their low cost and good catalytic activities. Despite nanostructured M-N-C catalysts can achieve good electrochemical performances, they are vulnerable to aggregation and insufficient catalytic sites upon continuous catalytic reaction. In this work, metal-organic frameworks derived porous single-atom electrocatalysts (SAEs) were successfully prepared by simple pyrolysis procedure without any further posttreatment. Combining the X-ray absorption near-edge spectroscopy and electrochemical measurements, the SAEs have been identified with superior oxygen reduction reaction (ORR) activity and stability compared with Pt/C catalysts in alkaline condition. More impressively, the SAEs also show excellent ORR electrocatalytic performance in both acid and neutral media. This study of nonprecious catalysts provides new insights on nanoengineering catalytically active sites and porous structures for nonprecious metal ORR catalysis in a wide range of pH.

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Title: Porous Carbon-Hosted Atomically Dispersed Iron-Nitrogen Moiety as Enhanced Electrocatalysts for Oxygen Reduction Reaction in a Wide Range of pH
Creators: Shaofang Fu - Washington State University
Chengzhou Zhu - Washington State University
Dong Su - Brookhaven National Laboratory
Junhua Song - Washington State University
Siyu Yao - Brookhaven National Laboratory
Shuo Feng - Washington State University
Mark H. Engelhard - Pacific Northwest National Laboratory
Dan Du - Washington State University
Yuehe Lin - Washington State University
Publication Details: Small (Weinheim an der Bergstrasse, Germany), Vol.14(12), pp.1-7
Academic Unit: School of Mechanical and Materials Engineering
Publisher: Wiley
Number of pages: 7
Grant note: Washington State University, USA Department of Energy's Office of Biological and Environmental Research; United States Department of Energy (DOE) DE-AC05-76RL01830 / DOE; United States Department of Energy (DOE)
Identifiers: 99901227645401842
Language: English
Resource Type: Journal article