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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

Abstract

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 perfor-mances, 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 measure-ments, 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 perfor-mance 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.

Authors:
 [1];  [2];  [3];  [1];  [4];  [1];  [5];  [2]; ORCiD logo [1]
  1. School of Mechanical and Materials Engineering, Washington State University, WA 99164 USA
  2. School of Mechanical and Materials Engineering, Washington State University, WA 99164 USA; Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry Central China Normal University, Wuhan 430079 P. R. China
  3. Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton NY 11973 USA
  4. Chemistry Department, Brookhaven National Laboratory, Upton NY 11973 USA
  5. Environmental Molecular Science Laboratory, Pacific Northwest National Laboratory, Richland WA 99354 USA
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1439660
Report Number(s):
PNNL-SA-133964
Journal ID: ISSN 1613-6810; 48920; KP1704020
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Small; Journal Volume: 14; Journal Issue: 12
Country of Publication:
United States
Language:
English
Subject:
Environmental Molecular Sciences Laboratory

Citation Formats

Fu, Shaofang, Zhu, Chengzhou, Su, Dong, Song, Junhua, Yao, Siyu, Feng, Shuo, Engelhard, Mark H., Du, Dan, and Lin, Yuehe. Porous Carbon-Hosted Atomically Dispersed Iron-Nitrogen Moiety as Enhanced Electrocatalysts for Oxygen Reduction Reaction in a Wide Range of pH. United States: N. p., 2018. Web. doi:10.1002/smll.201703118.
Fu, Shaofang, Zhu, Chengzhou, Su, Dong, Song, Junhua, Yao, Siyu, Feng, Shuo, Engelhard, Mark H., Du, Dan, & Lin, Yuehe. Porous Carbon-Hosted Atomically Dispersed Iron-Nitrogen Moiety as Enhanced Electrocatalysts for Oxygen Reduction Reaction in a Wide Range of pH. United States. doi:10.1002/smll.201703118.
Fu, Shaofang, Zhu, Chengzhou, Su, Dong, Song, Junhua, Yao, Siyu, Feng, Shuo, Engelhard, Mark H., Du, Dan, and Lin, Yuehe. Mon . "Porous Carbon-Hosted Atomically Dispersed Iron-Nitrogen Moiety as Enhanced Electrocatalysts for Oxygen Reduction Reaction in a Wide Range of pH". United States. doi:10.1002/smll.201703118.
@article{osti_1439660,
title = {Porous Carbon-Hosted Atomically Dispersed Iron-Nitrogen Moiety as Enhanced Electrocatalysts for Oxygen Reduction Reaction in a Wide Range of pH},
author = {Fu, Shaofang and Zhu, Chengzhou and Su, Dong and Song, Junhua and Yao, Siyu and Feng, Shuo and Engelhard, Mark H. and Du, Dan and Lin, Yuehe},
abstractNote = {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 perfor-mances, 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 measure-ments, 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 perfor-mance 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.},
doi = {10.1002/smll.201703118},
journal = {Small},
number = 12,
volume = 14,
place = {United States},
year = {Mon Feb 12 00:00:00 EST 2018},
month = {Mon Feb 12 00:00:00 EST 2018}
}