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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

Journal Article · · Nanoscale
DOI:https://doi.org/10.1039/C5NR07929B· OSTI ID:1237186
 [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)

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.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC00112704
OSTI ID:
1237186
Report Number(s):
BNL-111761-2016-JA; NANOHL; KC0403020
Journal Information:
Nanoscale, Vol. 106, Issue 22; ISSN 2040-3364
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 74 works
Citation information provided by
Web of Science

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Cited By (19)

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
Core@shell structured Co–CoO@NC nanoparticles supported on nitrogen doped carbon with high catalytic activity for oxygen reduction reaction journal January 2018
Cobalt-Tannin-Framework-Derived Amorphous Co−P/Co−N−C on N, P Co-Doped Porous Carbon with Abundant Active Moieties for Efficient Oxygen Reactions and Water Splitting journal January 2019
Recent Progress in Nitrogen-Doped Metal-Free Electrocatalysts for Oxygen Reduction Reaction journal May 2018
Nitrogen and sulfur co-doping of 3D hollow-structured carbon spheres as an efficient and stable metal free catalyst for the oxygen reduction reaction journal January 2016
Carved nanoframes of cobalt–iron bimetal phosphide as a bifunctional electrocatalyst for efficient overall water splitting journal January 2019
Interfacial engineering of Mo 2 C–Mo 3 C 2 heteronanowires for high performance hydrogen evolution reactions journal January 2019
Interpenetrating Triphase Cobalt-Based Nanocomposites as Efficient Bifunctional Oxygen Electrocatalysts for Long-Lasting Rechargeable Zn-Air Batteries journal January 2018
Cobalt-Pyrazolate-Derived N-Doped Porous Carbon with Embedded Cobalt Oxides for Enhanced Oxygen Evolution Reaction journal November 2019
Using lithium chloride as a medium to prepare N,P-codoped carbon nanosheets for oxygen reduction and evolution reactions journal January 2019
Supramolecular gel assisted synthesis of Co 2 P nanosheets as an efficient and stable catalyst for oxygen reduction reaction journal January 2018
Highly active bifunctional oxygen electrocatalysts derived from nickel– or cobalt–phytic acid xerogel for zinc–air batteries journal January 2018
Self-assembled fibrillar networks induced by two methods: a new unmodified natural product gel journal January 2018
Mn x (PO 4 ) y /NPC As a High Performance Bifunctional Electrocatalyst for Oxygen Electrode Reactions journal January 2019
MOF-derived two-dimensional N-doped carbon nanosheets coupled with Co–Fe–P–Se as efficient bifunctional OER/ORR catalysts journal January 2019
N,S-Atom-coordinated Co 9 S 8 trinary dopants within a porous graphene framework as efficient catalysts for oxygen reduction/evolution reactions 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