A bulky and flexible electrocatalyst for efficient hydrogen evolution based on the growth of MoS2 nanoparticles on carbon nanofiber foam

Xin Guo; Guo Lin Cao; Fei Ding; Xinyuan Li; Shuyu Zhen; Yi Fei Xue; Yi Ming Yan; Ting Liu; Ke Ning Sun

doi:10.1039/c5ta00087d

A bulky and flexible electrocatalyst for efficient hydrogen evolution based on the growth of MoS₂ nanoparticles on carbon nanofiber foam

Xin Guo, Guo Lin Cao, Fei Ding, Xinyuan Li, Shuyu Zhen, Yi Fei Xue, Yi Ming Yan^*, Ting Liu, Ke Ning Sun

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

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

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Abstract

An advanced hydrogen evolution reaction (HER) electrocatalyst is highly desired for the development of solar water-splitting devices. In this work, we describe the preparation of a flexible, three-dimensional (3D) and durable electrode, which is composed of MoS₂ nanoparticles grown on bacteria-cellulose-derived carbon fiber foam (MoS₂/CNF). The MoS₂/CNF foam was used as a bulky and flexible HER electrocatalyst, exhibiting excellent catalytic activity for a hydrogen evolution reaction in an acidic electrolyte (16 mA cm^-2 at an overpotential of 230 mV). Remarkably, this novel HER electrocatalyst shows a low onset overpotential of 120 mV, a small Tafel slope of 44 mV dec^-1, a high exchange current density of 0.09 mA cm^-2, and a Faradaic efficiency of nearly 100%. This work offers an attractive strategy of preparing bulky and flexible electrocatalyst for large-scale water splitting technology.

Original language	English
Pages (from-to)	5041-5046
Number of pages	6
Journal	Journal of Materials Chemistry A
Volume	3
Issue number	9
DOIs	https://doi.org/10.1039/c5ta00087d
Publication status	Published - 7 Mar 2015

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Guo, X., Cao, G. L., Ding, F., Li, X., Zhen, S., Xue, Y. F., Yan, Y. M., Liu, T., & Sun, K. N. (2015). A bulky and flexible electrocatalyst for efficient hydrogen evolution based on the growth of MoS₂ nanoparticles on carbon nanofiber foam. Journal of Materials Chemistry A, 3(9), 5041-5046. https://doi.org/10.1039/c5ta00087d

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title = "A bulky and flexible electrocatalyst for efficient hydrogen evolution based on the growth of MoS2 nanoparticles on carbon nanofiber foam",

abstract = "An advanced hydrogen evolution reaction (HER) electrocatalyst is highly desired for the development of solar water-splitting devices. In this work, we describe the preparation of a flexible, three-dimensional (3D) and durable electrode, which is composed of MoS2 nanoparticles grown on bacteria-cellulose-derived carbon fiber foam (MoS2/CNF). The MoS2/CNF foam was used as a bulky and flexible HER electrocatalyst, exhibiting excellent catalytic activity for a hydrogen evolution reaction in an acidic electrolyte (16 mA cm-2 at an overpotential of 230 mV). Remarkably, this novel HER electrocatalyst shows a low onset overpotential of 120 mV, a small Tafel slope of 44 mV dec-1, a high exchange current density of 0.09 mA cm-2, and a Faradaic efficiency of nearly 100%. This work offers an attractive strategy of preparing bulky and flexible electrocatalyst for large-scale water splitting technology.",

author = "Xin Guo and Cao, {Guo Lin} and Fei Ding and Xinyuan Li and Shuyu Zhen and Xue, {Yi Fei} and Yan, {Yi Ming} and Ting Liu and Sun, {Ke Ning}",

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AU - Guo, Xin

AU - Cao, Guo Lin

AU - Ding, Fei

AU - Li, Xinyuan

AU - Zhen, Shuyu

AU - Xue, Yi Fei

AU - Yan, Yi Ming

AU - Liu, Ting

AU - Sun, Ke Ning

PY - 2015/3/7

Y1 - 2015/3/7

N2 - An advanced hydrogen evolution reaction (HER) electrocatalyst is highly desired for the development of solar water-splitting devices. In this work, we describe the preparation of a flexible, three-dimensional (3D) and durable electrode, which is composed of MoS2 nanoparticles grown on bacteria-cellulose-derived carbon fiber foam (MoS2/CNF). The MoS2/CNF foam was used as a bulky and flexible HER electrocatalyst, exhibiting excellent catalytic activity for a hydrogen evolution reaction in an acidic electrolyte (16 mA cm-2 at an overpotential of 230 mV). Remarkably, this novel HER electrocatalyst shows a low onset overpotential of 120 mV, a small Tafel slope of 44 mV dec-1, a high exchange current density of 0.09 mA cm-2, and a Faradaic efficiency of nearly 100%. This work offers an attractive strategy of preparing bulky and flexible electrocatalyst for large-scale water splitting technology.

AB - An advanced hydrogen evolution reaction (HER) electrocatalyst is highly desired for the development of solar water-splitting devices. In this work, we describe the preparation of a flexible, three-dimensional (3D) and durable electrode, which is composed of MoS2 nanoparticles grown on bacteria-cellulose-derived carbon fiber foam (MoS2/CNF). The MoS2/CNF foam was used as a bulky and flexible HER electrocatalyst, exhibiting excellent catalytic activity for a hydrogen evolution reaction in an acidic electrolyte (16 mA cm-2 at an overpotential of 230 mV). Remarkably, this novel HER electrocatalyst shows a low onset overpotential of 120 mV, a small Tafel slope of 44 mV dec-1, a high exchange current density of 0.09 mA cm-2, and a Faradaic efficiency of nearly 100%. This work offers an attractive strategy of preparing bulky and flexible electrocatalyst for large-scale water splitting technology.

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A bulky and flexible electrocatalyst for efficient hydrogen evolution based on the growth of MoS₂ nanoparticles on carbon nanofiber foam

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