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Nano Lett. 2011 Oct 12;11(10):4168-75. doi: 10.1021/nl2020476. Epub 2011 Sep 14.

Core-shell MoO3-MoS2 nanowires for hydrogen evolution: a functional design for electrocatalytic materials.

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  • 1Department of Chemical Engineering, Stanford University , Stanford, California 94305, United States.

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.

PMID:
21894935
DOI:
10.1021/nl2020476
[PubMed]
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