Core–shell MoO3–MoS2 Nanowires for Hydrogen Evolution: A Functional Design for Electrocatalytic Materials

Chen, Zhebo; Cummins, Dustin; Reinecke, Benjamin N.; Clark, Ezra; Sunkara, Mahendra K.; Jaramillo, Thomas F.

doi:10.1021/nl2020476

Cited by 1,153Electrocatalysts for Energy ConversionCatalysis and Hydrodesulfurization Studies2D Materials and Applications

Core–shell MoO3–MoS2 Nanowires for Hydrogen Evolution: A Functional Design for Electrocatalytic Materials

Chen, Zhebo, Cummins, Dustin, Reinecke, Benjamin N., Clark, Ezra, Sunkara, Mahendra K., Jaramillo, Thomas F.·2011·Nano Letters

DOI 10.1021/nl2020476

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Abstract

We synthesize vertically oriented core-shell nanowires with substoichiometric MoO(3) cores of ∼20-50 nm and conformal MoS(2) shells of ∼2-5 nm. The core-shell architecture, produced by low-temperature sulfidization, is designed to utilize the best properties of each component material while mitigating their deficiencies. The substoichiometric MoO(3) core provides a high aspect ratio foundation and enables facile charge transport, while the conformal MoS(2) shell provides excellent catalytic activity and protection against corrosion in strong acids.

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The MoS2 shell serves as a protective layer that increases the composite's stability in the acid electrolyte.
“as a protective layer to increase the composite stability in the acid electrolyte.”
From 2D Transition‐Metal‐Dichalcogenide‐Nanosheet‐Based Composites for Photocatalytic and Electrocatalytic Hydrogen Evolution Reactions (2016) · cites this paper as [60]
The MoO3@MoS2 core-shell nanowire array showed excellent catalytic activity with an overpotential of 150-200 mV and Tafel slope of 50-60 mV per decade, ascribed to the highly conductive core of reduced MoO3 and the HER catalyst of MoS2 shell.
“The obtained MoO 3 @ MoS 2 core-shell nanowire array showed excellent catalytic activity with an overpotential of 150-200 mV and Tafel slope of 50-60 mV per decade, which could be ascribed to the highly conductive core of reduced MoO 3 and the HER catalyst of MoS 2 shell”
From 2D Transition‐Metal‐Dichalcogenide‐Nanosheet‐Based Composites for Photocatalytic and Electrocatalytic Hydrogen Evolution Reactions (2016) · cites this paper as [60]
The high HER activity of the MoO3@MoS2 core-shell nanowire array can be ascribed to the highly conductive reduced MoO3 core and the MoS2 shell acting as HER catalyst.
“could be ascribed to the highly conductive core of reduced MoO 3 and the HER catalyst of MoS 2 shell (Figure 10 c,d).”
From 2D Transition‐Metal‐Dichalcogenide‐Nanosheet‐Based Composites for Photocatalytic and Electrocatalytic Hydrogen Evolution Reactions (2016) · cites this paper as [60]

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Authors: Chen, Z., Cummins, D., Reinecke, B. N., Clark, E., Sunkara, M. K., & Jaramillo, T. F.
Affiliations: Stanford University (US)
University of Louisville (US)
Corresponding author: Jaramillo, Thomas F.
ORCID: Chen, Zhebo
Cummins, Dustin
Clark, Ezra
Sunkara, Mahendra K.
Jaramillo, Thomas F.
Venue: Nano Letters
Publisher: American Chemical Society (ACS)
Published: 2011-09-14
Volume: 11
Issue: 10
Pages: 4168-4175
ISSN: 1530-6984 (ISSN-L)
1530-6992
DOI: 10.1021/nl2020476
OpenAlex: W2075528836
Cited by: 1,153
References: 2
Citations by year: 2026: 20 · 2025: 25 · 2024: 28 · 2023: 55 · 2022: 63 · 2021: 76 · 2020: 96 · 2019: 119 · 2018: 125 · 2017: 134 · 2016: 133 · 2015: 119 · 2014: 91 · 2013: 49 · 2012: 19
FWCI: 21.15
Type: journal article
Language: en
Open access: closed
Locations: Nano Letters (publishedVersion)
PubMed (publishedVersion)
Funders: U.S. Department of Energy (DESC0001060)
Topics: Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
Physical Sciences › Engineering › Mechanical Engineering › Catalysis and Hydrodesulfurization Studies
Physical Sciences › Materials Science › Materials Chemistry › 2D Materials and Applications
Keywords: hydrogen evolution reaction, electrocatalysis, acid corrosion resistance, charge transport, nanowire synthesis

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Core–shell MoO3–MoS2 Nanowires for Hydrogen Evolution: A Functional Design for Electrocatalytic Materials

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