Hydrogen Evolution on Supported Incomplete Cubane-type [Mo3S4](4+) Electrocatalysts

Thomas Jaramillo; Jacob Lindner Bonde; Jingdong Zhang; Bee Lean Ooi; Klas Jerker Andersson; Jens Ulstrup; Ib Chorkendorff

doi:10.1021/jp802695e

Hydrogen Evolution on Supported Incomplete Cubane-type [Mo3S4](4+) Electrocatalysts

Thomas Jaramillo, Jacob Lindner Bonde, Jingdong Zhang, Bee Lean Ooi, Klas Jerker Andersson, Jens Ulstrup, Ib Chorkendorff

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Abstract

Electrocatalytic properties of biomimetic supported incomplete cubane-type [Mo3S4](4+) clusters are investigated. The activity toward the hydrogen evolution reaction (HER) is evaluated on both a high surface area gas diffusion electrode in a membrane electrode assembly and on highly orientated pyrolytic graphite (HOPG) supports. Sub-monolayers of the clusters were imaged by means of scanning tunnelling microscopy (STM) prior to electrochemical characterization. This enabled the quantification of the activity on a per cluster basis for the HER and the comparison of the activity with other HER catalysts. We find that the HER activity of the [Mo3S4](4+) is comparable with that of the edge sites of MoS2. The supported [Mo3S4](4+) molecules were also characterized by X-ray photoelectron spectroscopy (XPS), and the observed deterioration in electrocatalytic activity with time was assigned to slow [Mo3S4](4+) cathodic desorption from the catalyst support.

Original language	English
Journal	Journal of Physical Chemistry C
Volume	112
Issue number	45
Pages (from-to)	17492-17498
ISSN	1932-7447
DOIs	https://doi.org/10.1021/jp802695e
Publication status	Published - 2008

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title = "Hydrogen Evolution on Supported Incomplete Cubane-type [Mo3S4](4+) Electrocatalysts",

abstract = "Electrocatalytic properties of biomimetic supported incomplete cubane-type [Mo3S4](4+) clusters are investigated. The activity toward the hydrogen evolution reaction (HER) is evaluated on both a high surface area gas diffusion electrode in a membrane electrode assembly and on highly orientated pyrolytic graphite (HOPG) supports. Sub-monolayers of the clusters were imaged by means of scanning tunnelling microscopy (STM) prior to electrochemical characterization. This enabled the quantification of the activity on a per cluster basis for the HER and the comparison of the activity with other HER catalysts. We find that the HER activity of the [Mo3S4](4+) is comparable with that of the edge sites of MoS2. The supported [Mo3S4](4+) molecules were also characterized by X-ray photoelectron spectroscopy (XPS), and the observed deterioration in electrocatalytic activity with time was assigned to slow [Mo3S4](4+) cathodic desorption from the catalyst support.",

author = "Thomas Jaramillo and Bonde, {Jacob Lindner} and Jingdong Zhang and Ooi, {Bee Lean} and Andersson, {Klas Jerker} and Jens Ulstrup and Ib Chorkendorff",

year = "2008",

doi = "10.1021/jp802695e",

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T1 - Hydrogen Evolution on Supported Incomplete Cubane-type [Mo3S4](4+) Electrocatalysts

AU - Jaramillo, Thomas

AU - Bonde, Jacob Lindner

AU - Zhang, Jingdong

AU - Ooi, Bee Lean

AU - Andersson, Klas Jerker

AU - Ulstrup, Jens

AU - Chorkendorff, Ib

PY - 2008

Y1 - 2008

N2 - Electrocatalytic properties of biomimetic supported incomplete cubane-type [Mo3S4](4+) clusters are investigated. The activity toward the hydrogen evolution reaction (HER) is evaluated on both a high surface area gas diffusion electrode in a membrane electrode assembly and on highly orientated pyrolytic graphite (HOPG) supports. Sub-monolayers of the clusters were imaged by means of scanning tunnelling microscopy (STM) prior to electrochemical characterization. This enabled the quantification of the activity on a per cluster basis for the HER and the comparison of the activity with other HER catalysts. We find that the HER activity of the [Mo3S4](4+) is comparable with that of the edge sites of MoS2. The supported [Mo3S4](4+) molecules were also characterized by X-ray photoelectron spectroscopy (XPS), and the observed deterioration in electrocatalytic activity with time was assigned to slow [Mo3S4](4+) cathodic desorption from the catalyst support.

AB - Electrocatalytic properties of biomimetic supported incomplete cubane-type [Mo3S4](4+) clusters are investigated. The activity toward the hydrogen evolution reaction (HER) is evaluated on both a high surface area gas diffusion electrode in a membrane electrode assembly and on highly orientated pyrolytic graphite (HOPG) supports. Sub-monolayers of the clusters were imaged by means of scanning tunnelling microscopy (STM) prior to electrochemical characterization. This enabled the quantification of the activity on a per cluster basis for the HER and the comparison of the activity with other HER catalysts. We find that the HER activity of the [Mo3S4](4+) is comparable with that of the edge sites of MoS2. The supported [Mo3S4](4+) molecules were also characterized by X-ray photoelectron spectroscopy (XPS), and the observed deterioration in electrocatalytic activity with time was assigned to slow [Mo3S4](4+) cathodic desorption from the catalyst support.

U2 - 10.1021/jp802695e

DO - 10.1021/jp802695e

M3 - Journal article

SN - 1932-7447

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EP - 17498

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 45

ER -

Hydrogen Evolution on Supported Incomplete Cubane-type [Mo3S4](4+) Electrocatalysts

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