Uniformly self-decorated Co3O4 nanoparticles on N, S co-doped carbon layers derived from a camphor sulfonic acid and metal-organic framework hybrid as an oxygen evolution electrocatalystElectronic supplementary information (ESI) available. See DOI: 10.1039/c8ta02926a
The development of clean hydrogen-based energy technologies depends upon the rational design and synthesis of efficient and earth-abundant electrocatalysts. Despite great efforts, exploring cheap and unique design nanostructured materials for efficient electrocatalysis remains a big challenge. Here,...
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Main Authors | , , , |
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Format | Journal Article |
Language | English |
Published |
26.06.2018
|
Online Access | Get full text |
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Summary: | The development of clean hydrogen-based energy technologies depends upon the rational design and synthesis of efficient and earth-abundant electrocatalysts. Despite great efforts, exploring cheap and unique design nanostructured materials for efficient electrocatalysis remains a big challenge. Here, we synthesize a porous co-doped carbon decorated with Co
3
O
4
nanoparticles from pyrolysis of a camphor sulfonic acid and metal-organic framework hybrid. The uniformly self-decorated Co
3
O
4
nanoparticles on N, S co-doped carbon layers (denoted as Co
3
O
4
/NSC) offer fast ion/electron transport and thus make the material an excellent oxygen evolution electrocatalyst. The resulting Co
3
O
4
/NSC shows an onset potential of 1.41 V
versus
the reversible hydrogen electrode (
vs.
RHE) and delivers an anodic current density of 10 mA cm
−2
at 1.49 V
vs.
RHE, demonstrating fast kinetics for the oxygen evolution reaction (OER) with a small Tafel slope of 70 mV dec
−1
, making it superior to many state-of-the-art cobalt oxide-based catalysts recently reported in the literature.
A simple one step preparation of Co
3
O
4
nanoparticle decorated carbon from a camphor sulfonic acid and metal-organic framework hybrid. |
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Bibliography: | Electronic supplementary information (ESI) available. See DOI 10.1039/c8ta02926a |
ISSN: | 2050-7488 2050-7496 |
DOI: | 10.1039/c8ta02926a |