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Self-limiting growth of two-dimensional palladium between graphene oxide layers

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journal contribution
posted on 16.01.2020, 13:20 by Yang Su, Eric Prestat, Chengyi Hu, Vinod Kumar Puthiyapura, Mehdi Neek-Amal, Hui Xiao, Kun Huang, Vasyl G Kravets, Sarah J Haigh, Christopher Hardacre, Francois M Peeters, Rahul R Nair
© 2019 American Chemical Society. The ability of different materials to display self-limiting growth has recently attracted an enormous amount of attention because of the importance of nanoscale materials in applications for catalysis, energy conversion, (opto)electronics, and so forth. Here, we show that the electrochemical deposition of palladium (Pd) between graphene oxide (GO) sheets result in the self-limiting growth of 5-nm-thick Pd nanosheets. The self-limiting growth is found to be a consequence of the strong interaction of Pd with the confining GO sheets, which results in the bulk growth of Pd being energetically unfavorable for larger thicknesses. Furthermore, we have successfully carried out liquid exfoliation of the resulting Pd-GO laminates to isolate Pd nanosheets and have demonstrated their high efficiency in continuous flow catalysis and electrocatalysis.

Funding

Royal Society, Engineering and Physical Sciences Research Council, U.K. (EP/S019367/1, EP/P025021/1, EP/K016946/1, and EP/P009050/1)

Graphene Flagship, and European Research Council (contract 679689 and EvoluTEM).

UK Catalysis Hub Consortium and funding by EPSRC (Portfolio grants EP/K014706/2, EP/ K014668/1, EP/K014854/1, EP/K014714/1, and EP/ I019693/1).

Flemish Science Foundation (FWO-Vl).

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Published in

Nano Letters

Volume

19

Issue

7

Pages

4678 - 4683

Publisher

American Chemical Society (ACS)

Version

AM (Accepted Manuscript)

Rights holder

© American Chemical Society

Publisher statement

This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.nanolett.9b01733

Publication date

2019-06-07

ISSN

1530-6984

eISSN

1530-6992

Language

en

Location

United States

Depositor

Dr Yang Su Deposit date: 14 January 2020