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Issue 23, 2016
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Seeded preparation of ultrathin FeS2 nanosheets from Fe3O4 nanoparticles

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Abstract

FeS2 nanomaterials with two-dimensional features hold great promise for electrochemical and photovoltaic applications. However, the preparation of ultrathin FeS2 nanosheets is still challenging because of the lack of a tailor-made approach. In this work, FeS2 nanosheets with a thickness of 2.1 nm are prepared through a Fe3O4-seeded approach. Uniform Fe3O4 nanoparticles are foremost synthesized via the standard method in organic media. The injection of a S solution leads to the replacement of O in Fe3O4 through anion-exchange, which generates (110) facet-enriched FeS2 nuclei. The subsequent (110) facet-mediated oriented attachment and fusion of FeS2 nuclei produce ultrathin FeS2 nanosheets. As catalysts in the hydrogen evolution reaction, FeS2 nanosheets exhibit good electrochemical activity.

Graphical abstract: Seeded preparation of ultrathin FeS2 nanosheets from Fe3O4 nanoparticles

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Article information


Submitted
16 Mar 2016
Accepted
23 May 2016
First published
31 May 2016

Nanoscale, 2016,8, 11792-11796
Article type
Communication

Seeded preparation of ultrathin FeS2 nanosheets from Fe3O4 nanoparticles

T. Li, H. Liu, Z. Wu, Y. Liu, Z. Guo and H. Zhang, Nanoscale, 2016, 8, 11792
DOI: 10.1039/C6NR02211A

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