Research Data Leeds Repository

Citation

Ye, Sunjie, Brown, Andrew, Stammers, Ashley C., Thomson, Neil H., Roach, Lucien, Bushby, Richard J., Coletta, P. Louise, Critchley, Kevin, Connell, Simon D., Markham, Alexander F., Drummond-Brydson, Rik and Evans, Stephen D. (2018) Data associated with "Sub-Nanometer Thick Gold Nanosheets as Highly-efficient Catalysts". University of Leeds. [Dataset] https://doi.org/10.5518/464

Dataset description

Two-dimensional metal nanomaterials offer exciting prospects in terms of their properties and functions. However, the ambient aqueous synthesis of atomically-thin, two-dimensional (2D) metallic nanomaterials represents a significant challenge. Herein, freestanding and atomically-thin gold nanosheets with a thickness of only 0.47 nm (two atomic layers thick) were synthesized via a one-step aqueous approach at 20°C, using Methyl Orange as a confining agent. Owing to the high surface-area-to-volume ratio, abundance of unsaturated atoms exposed on the surface and large interfacial areas arising from their ultrathin 2D nature, the as-prepared Au nanosheets demonstrate excellent catalysis performance in the model reaction of 4-nitrophenol reduction, and remarkable peroxidase-mimicking activity which enables a highly-sensitive colorimetric sensing of H2O2 with a detection limit of 0.11 µM. This work represents the first fabrication of freestanding 2D gold with a sub-nanometer thickness, opens up an innovative pathway towards atomically-thin metal nanomaterials that can serve as model systems for inspiring fundamental advances in materials science, and hold potential across a wide region of applications.

Keywords:	2D, catalysis, gold nanomaterials, nanoenzymes, sub‐nanometer
Subjects:	F000 - Physical sciences > F200 - Materials science
Divisions:	Faculty of Engineering and Physical Sciences > School of Physics and Astronomy
Related resources:	Location Type https://doi.org/10.1002/advs.201900911 Publication https://eprints.whiterose.ac.uk/149481/ Publication
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	06 Aug 2019 09:15
URI:	https://archive.researchdata.leeds.ac.uk/id/eprint/557
Additional details Additional details Creators or authors: Creators ORCID Other ID Email Primary affiliation Primary affiliation ID Primary affiliation ID type Secondary affiliation Secondary affiliation ID Secondary affiliation ID type Ye, Sunjie https://orcid.org/0000-0001-5152-5753 University of Leeds https://ror.org/024mrxd33 ror Brown, Andrew https://orcid.org/0000-0001-9692-2154 University of Leeds https://ror.org/024mrxd33 ror Stammers, Ashley C. https://orcid.org/0000-0002-5277-779X University of Leeds https://ror.org/024mrxd33 ror Thomson, Neil H. https://orcid.org/0000-0001-7332-790X University of Leeds https://ror.org/024mrxd33 ror Roach, Lucien https://orcid.org/0000-0002-9166-6662 University of Leeds https://ror.org/024mrxd33 ror Bushby, Richard J. https://orcid.org/0000-0002-1627-6058 University of Leeds https://ror.org/024mrxd33 ror Coletta, P. Louise https://orcid.org/0000-0002-3858-6073 University of Leeds https://ror.org/024mrxd33 ror Critchley, Kevin https://orcid.org/0000-0002-0112-8626 University of Leeds https://ror.org/024mrxd33 ror Connell, Simon D. https://orcid.org/0000-0003-2500-5724 University of Leeds https://ror.org/024mrxd33 ror Markham, Alexander F. https://orcid.org/0000-0002-6639-3199 University of Leeds https://ror.org/024mrxd33 ror Drummond-Brydson, Rik https://orcid.org/0000-0003-2003-7612 University of Leeds https://ror.org/024mrxd33 ror Evans, Stephen D. https://orcid.org/0000-0001-8342-5335 University of Leeds https://ror.org/024mrxd33 ror Type of data: Dataset Research funders: Wellcome Trust, MRC, NIHR, EPSRC Grant numbers: MR/L01629X, MIC-2016-004, EP/P023266/1, EP/P005241/1 Publication date: 2018 Resource language: English Metadata language: English Publisher: University of Leeds Contact email: s.ye@leeds.ac.uk Last Modified: 12 Oct 2026 11:36

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