Two-Dimensional Cobalt/N-Doped Carbon Hybrid Structure Derived from Metal-Organic Frameworks as Efficient Electrocatalysts for Hydrogen Evolution

Tan Huang; Yu Chen; Jong Min Lee

doi:10.1021/acssuschemeng.7b00598

Two-Dimensional Cobalt/N-Doped Carbon Hybrid Structure Derived from Metal-Organic Frameworks as Efficient Electrocatalysts for Hydrogen Evolution

Tan Huang, Yu Chen^*, Jong Min Lee

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

51 Citations (Scopus)

Abstract

In situ formation of Co/N-carbon via pyrolysis of layered cobalt metal-organic frameworks in argon atmosphere was performed. As excellent hydrogen evolution reaction (HER) catalysts, the 2D hybrid layered structure composed of metallic cobalt and N-carbon exhibited a small overpotential of 103 mV (vs RHE) at 10 mA/cm², high cycle durability and considerable long-term stability for HER. The superior electrochemical performance of Co/N-carbon for HER could be attributed to such 2D setup that encompasses the low H atom binding energy of metallic cobalt, the high conductivity of carbon and the stability of carbon-encapsulated Co nanoparticles.

Original language	English
Pages (from-to)	5646-5650
Number of pages	5
Journal	ACS Sustainable Chemistry and Engineering
Volume	5
Issue number	7
DOIs	https://doi.org/10.1021/acssuschemeng.7b00598
Publication status	Published - Jul 3 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 American Chemical Society.

ASJC Scopus Subject Areas

General Chemistry
Environmental Chemistry
General Chemical Engineering
Renewable Energy, Sustainability and the Environment

Keywords

Electrocatalyst
Hydrogen evolution
Metal organic framework

UN SDGs

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

Access to Document

10.1021/acssuschemeng.7b00598

Cite this

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abstract = "In situ formation of Co/N-carbon via pyrolysis of layered cobalt metal-organic frameworks in argon atmosphere was performed. As excellent hydrogen evolution reaction (HER) catalysts, the 2D hybrid layered structure composed of metallic cobalt and N-carbon exhibited a small overpotential of 103 mV (vs RHE) at 10 mA/cm2, high cycle durability and considerable long-term stability for HER. The superior electrochemical performance of Co/N-carbon for HER could be attributed to such 2D setup that encompasses the low H atom binding energy of metallic cobalt, the high conductivity of carbon and the stability of carbon-encapsulated Co nanoparticles.",

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AU - Huang, Tan

AU - Chen, Yu

AU - Lee, Jong Min

PY - 2017/7/3

Y1 - 2017/7/3

N2 - In situ formation of Co/N-carbon via pyrolysis of layered cobalt metal-organic frameworks in argon atmosphere was performed. As excellent hydrogen evolution reaction (HER) catalysts, the 2D hybrid layered structure composed of metallic cobalt and N-carbon exhibited a small overpotential of 103 mV (vs RHE) at 10 mA/cm2, high cycle durability and considerable long-term stability for HER. The superior electrochemical performance of Co/N-carbon for HER could be attributed to such 2D setup that encompasses the low H atom binding energy of metallic cobalt, the high conductivity of carbon and the stability of carbon-encapsulated Co nanoparticles.

AB - In situ formation of Co/N-carbon via pyrolysis of layered cobalt metal-organic frameworks in argon atmosphere was performed. As excellent hydrogen evolution reaction (HER) catalysts, the 2D hybrid layered structure composed of metallic cobalt and N-carbon exhibited a small overpotential of 103 mV (vs RHE) at 10 mA/cm2, high cycle durability and considerable long-term stability for HER. The superior electrochemical performance of Co/N-carbon for HER could be attributed to such 2D setup that encompasses the low H atom binding energy of metallic cobalt, the high conductivity of carbon and the stability of carbon-encapsulated Co nanoparticles.

KW - Electrocatalyst

KW - Hydrogen evolution

KW - Metal organic framework

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Two-Dimensional Cobalt/N-Doped Carbon Hybrid Structure Derived from Metal-Organic Frameworks as Efficient Electrocatalysts for Hydrogen Evolution

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

UN SDGs

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