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Title: Supramolecular gel-assisted synthesis of double shelled Co@CoO@N-C/C nanoparticles with synergistic electrocatalytic activity for the oxygen reduction reaction

Abstract

Investigating active, stable, and low-cost materials for the oxygen reduction reaction is one of the key challenges in fuel-cell research. In this work, we describe the formation of N-doped carbon shell coated Co@CoO nanoparticles supported on Vulcan XC-72 carbon materials (Co@CoO@N–C/C) based on a simple supramolecular gel-assisted method. The double-shelled Co@CoO@N–C/C core–shell nanoparticles exhibit superior electrocatalytic activities for the oxygen reduction reaction compared to N-doped carbon and cobalt oxides, demonstrating the synergistic effect of the hybrid nanomaterials. Notably, the Co@CoO@N–C/C nanoparticles give rise to a comparable four-electron selectivity, long-term stability, and high methanol tolerance; all show a multi-fold improvement over the commercial Pt/C catalyst. As a result, the progress is of great importance in exploring advanced non-precious metal-based electrocatalysts for fuel cell applications.

Authors:
 [1];  [1];  [2];  [3];  [1];  [3];  [1]
  1. Huazhong Univ. of Science and Technology, Wuhan (China)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States); Tianjin Univ., Tianjin (People's Republic of China)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., Stony Brook, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1237186
Report Number(s):
BNL-111761-2016-JA
Journal ID: ISSN 2040-3364; NANOHL; KC0403020
Grant/Contract Number:  
SC00112704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nanoscale
Additional Journal Information:
Journal Volume: 106; Journal Issue: 22; Journal ID: ISSN 2040-3364
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; oxygen reduction reaction; fuel cell; Center for Functional Nanomaterials

Citation Formats

Wu, Zexing, Wang, Jie, Han, Lili, Lin, Ruogian, Liu, Hongfang, Xin, Huolin L., and Wang, Deli. Supramolecular gel-assisted synthesis of double shelled Co@CoO@N-C/C nanoparticles with synergistic electrocatalytic activity for the oxygen reduction reaction. United States: N. p., 2016. Web. doi:10.1039/C5NR07929B.
Wu, Zexing, Wang, Jie, Han, Lili, Lin, Ruogian, Liu, Hongfang, Xin, Huolin L., & Wang, Deli. Supramolecular gel-assisted synthesis of double shelled Co@CoO@N-C/C nanoparticles with synergistic electrocatalytic activity for the oxygen reduction reaction. United States. https://doi.org/10.1039/C5NR07929B
Wu, Zexing, Wang, Jie, Han, Lili, Lin, Ruogian, Liu, Hongfang, Xin, Huolin L., and Wang, Deli. 2016. "Supramolecular gel-assisted synthesis of double shelled Co@CoO@N-C/C nanoparticles with synergistic electrocatalytic activity for the oxygen reduction reaction". United States. https://doi.org/10.1039/C5NR07929B. https://www.osti.gov/servlets/purl/1237186.
@article{osti_1237186,
title = {Supramolecular gel-assisted synthesis of double shelled Co@CoO@N-C/C nanoparticles with synergistic electrocatalytic activity for the oxygen reduction reaction},
author = {Wu, Zexing and Wang, Jie and Han, Lili and Lin, Ruogian and Liu, Hongfang and Xin, Huolin L. and Wang, Deli},
abstractNote = {Investigating active, stable, and low-cost materials for the oxygen reduction reaction is one of the key challenges in fuel-cell research. In this work, we describe the formation of N-doped carbon shell coated Co@CoO nanoparticles supported on Vulcan XC-72 carbon materials (Co@CoO@N–C/C) based on a simple supramolecular gel-assisted method. The double-shelled Co@CoO@N–C/C core–shell nanoparticles exhibit superior electrocatalytic activities for the oxygen reduction reaction compared to N-doped carbon and cobalt oxides, demonstrating the synergistic effect of the hybrid nanomaterials. Notably, the Co@CoO@N–C/C nanoparticles give rise to a comparable four-electron selectivity, long-term stability, and high methanol tolerance; all show a multi-fold improvement over the commercial Pt/C catalyst. As a result, the progress is of great importance in exploring advanced non-precious metal-based electrocatalysts for fuel cell applications.},
doi = {10.1039/C5NR07929B},
url = {https://www.osti.gov/biblio/1237186}, journal = {Nanoscale},
issn = {2040-3364},
number = 22,
volume = 106,
place = {United States},
year = {Tue Jan 19 00:00:00 EST 2016},
month = {Tue Jan 19 00:00:00 EST 2016}
}

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Cited by: 74 works
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Works referenced in this record:

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Works referencing / citing this record:

MoS 2 –MoP heterostructured nanosheets on polymer-derived carbon as an electrocatalyst for hydrogen evolution reaction
journal, January 2018


Beyond Covalent Crosslinks: Applications of Supramolecular Gels
journal, May 2018


Using lithium chloride as a medium to prepare N,P-codoped carbon nanosheets for oxygen reduction and evolution reactions
journal, January 2019


Self-assembled fibrillar networks induced by two methods: a new unmodified natural product gel
journal, January 2018


Robust Catalysis on 2D Materials Encapsulating Metals: Concept, Application, and Perspective
journal, September 2017


Recent Advances of Cobalt-Based Electrocatalysts for Oxygen Electrode Reactions and Hydrogen Evolution Reaction
journal, November 2018