Metal-organic framework templated electrodeposition of functional gold nanostructures

Abstract

Utilizing a pair of quick, scalable electrochemical processes, the permanently porous MOF HKUST-1 was electrochemically grown on a copper electrode and this HKUST-1-coated electrode was used to template electrodeposition of a gold nanostructure within the pore network of the MOF. Transmission electron microscopy demonstrates that a proportion of the gold nanostructures exhibit structural features replicating the pore space of this ∼1.4 nm maximum pore diameter MOF, as well as regions that are larger in size. Scanning electron microscopy shows that the electrodeposited gold nanostructure, produced under certain conditions of synthesis and template removal, is sufficiently inter-grown and mechanically robust to retain the octahedral morphology of the HKUST-1 template crystals. The functionality of the gold nanostructure within the crystalline HKUST-1 was demonstrated through the surface enhanced Raman spectroscopic (SERS) detection of 4-fluorothiophenol at concentrations as low as 1 μM. The reported process is confirmed as a viable electrodeposition method for obtaining functional, accessible metal nanostructures encapsulated within MOF crystals.

Publication DOI: https://doi.org/10.1016/j.electacta.2016.10.187
Divisions: College of Engineering & Physical Sciences > School of Infrastructure and Sustainable Engineering > Chemical Engineering & Applied Chemistry
College of Engineering & Physical Sciences
Additional Information: © 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
Publication ISSN: 1873-3859
Last Modified: 30 Sep 2024 12:08
Date Deposited: 20 Aug 2019 08:43
Full Text Link: http://www.scop ... tnerID=MN8TOARS
Related URLs: https://www.sci ... 3040?via%3Dihub (Publisher URL)
PURE Output Type: Article
Published Date: 2016-12-20
Accepted Date: 2016-10-28
Authors: Worrall, S.D. (ORCID Profile 0000-0003-1969-3671)
Bissett, M.A.
Hill, P.I.
Rooney, A.P.
Haigh, S.J.
Attfield, M.P.
Dryfe, R.A.W.

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