NDLI: Co<sub>9</sub>S<sub>8</sub> nanoparticles embedded in a N, S co-doped graphene-unzipped carbon nanotube composite as a high performance electrocatalyst for the hydrogen evolution reaction

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Inside back cover

Back cover

Journal of Materials Chemistry A Vol - 5 Issue - 2

Journal of Materials Chemistry A Vol -4

Journal of Materials Chemistry A Vol -3

Journal of Materials Chemistry A Vol -2

Journal of Materials Chemistry A Vol -1

Co₉S₈ nanoparticles embedded in a N, S co-doped graphene-unzipped carbon nanotube composite as a high performance electrocatalyst for the hydrogen evolution reaction

Content Provider	Royal Society of Chemistry (RSC)
Author	Chen, Liang Yang, Wenji Fu, Chaopeng Kuang, Yafei Huang, Zheng Li, Mengbo Zhang, Ningshuang Zhou, Haihui
Copyright Year	2017
Abstract	In this work, we successfully fabricated a three-dimensional (3D) hierarchical ternary composite by embedding Co9S8 nanoparticles in a nitrogen and sulfur co-doped graphene-unzipped carbon nanotube matrix (Co9S8/NSG-UCNTs) through a facile and controllable one-step pyrolysis method using a graphite oxide/oxidized unzipped carbon nanotubes/cobalt nitrate/thiourea composite as the precursor. The as-prepared 3D ternary composite displays superior catalytic performance for the hydrogen evolution reaction (HER), which outperforms most binary or ternary carbon-based composites in the literature. The HER overpotentials are 65 mV and 86 mV when the current densities reach 10 mA cm−2 and 20 mA cm−2, respectively, and the exchange current density reaches 0.503 mA cm−2. Also, it demonstrates good stability reflected from the negligible activity decrease after 1000 consecutive cycles. The excellent electrocatalytic performance of the Co9S8/NSG-UCNT ternary composite is attributed to the co-effect of the abundant HER active sites induced by Co9S8 nanoparticles, structural defects existing in the carbon support caused by N and S co-doping and outstanding conductivity resulting from the 3D structure.
Starting Page	1014
Ending Page	1021
Page Count	8
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	5
Issue Number	3
Journal	Journal of Materials Chemistry A
DOI	10.1039/c6ta08955k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Three-dimensional space Nitrogen Sulfur Carbon nanotube Composite material Pyrolysis Graphite oxide LPI Media Cobalt(II) nitrate Thiourea Hydrogen Exchange current density Carbon
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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