Single nanoparticle SERS probes of ion intercalation in metal-oxide electrodes
Single nanoparticle SERS probes of ion intercalation in metal-oxide electrodes
Probing ion-intercalating processes in electrodes is hugely important for batteries, super-capacitors and photovoltaic devices. In this work we use single-nanoparticle probes to see real-time molecular changes correlated to electrochemically modulated ion-intercalation in metal-oxide electrodes. Using surface-enhanced Raman spectroscopy (SERS) transduced by single nanoparticle probes we observe that the Raman frequencies and spectral intensities of the adsorbed molecules vary on cycling the electrochemical potential on a vanadium-oxide electrode. The potential dependent frequency shifts in SERS from an electrochemically inert molecule are attributed to a Stark effect induced by chemical and structural changes as a result of ion-intercalation processes in vanadium-oxide. Our study opens up a unique strategy to explore adsorbates and molecular reaction pathways on ion-intercalating materials and semiconducting interfaces
495-498
Li, Li
8e6fbabd-aac6-4bb0-a273-a77750dc5b92
Steiner, Ullrich
839dfd85-73db-4125-b9e9-775296f6411f
Mahajan, Sumeet
b131f40a-479e-4432-b662-19d60d4069e9
2014
Li, Li
8e6fbabd-aac6-4bb0-a273-a77750dc5b92
Steiner, Ullrich
839dfd85-73db-4125-b9e9-775296f6411f
Mahajan, Sumeet
b131f40a-479e-4432-b662-19d60d4069e9
Li, Li, Steiner, Ullrich and Mahajan, Sumeet
(2014)
Single nanoparticle SERS probes of ion intercalation in metal-oxide electrodes.
Nano Letters, 14 (2), .
(doi:10.1021/nl403485e).
(PMID:24392779)
Abstract
Probing ion-intercalating processes in electrodes is hugely important for batteries, super-capacitors and photovoltaic devices. In this work we use single-nanoparticle probes to see real-time molecular changes correlated to electrochemically modulated ion-intercalation in metal-oxide electrodes. Using surface-enhanced Raman spectroscopy (SERS) transduced by single nanoparticle probes we observe that the Raman frequencies and spectral intensities of the adsorbed molecules vary on cycling the electrochemical potential on a vanadium-oxide electrode. The potential dependent frequency shifts in SERS from an electrochemically inert molecule are attributed to a Stark effect induced by chemical and structural changes as a result of ion-intercalation processes in vanadium-oxide. Our study opens up a unique strategy to explore adsorbates and molecular reaction pathways on ion-intercalating materials and semiconducting interfaces
Text
proof.pdf
- Version of Record
Restricted to Repository staff only
Request a copy
More information
e-pub ahead of print date: 6 January 2014
Published date: 2014
Organisations:
Institute for Life Sciences, Molecular Diagnostics & Thereputics
Identifiers
Local EPrints ID: 361043
URI: http://eprints.soton.ac.uk/id/eprint/361043
ISSN: 1530-6984
PURE UUID: 600e3db2-0a58-4b85-8dd2-261c2f0a4f9f
Catalogue record
Date deposited: 13 Jan 2014 09:11
Last modified: 15 Mar 2024 03:28
Export record
Altmetrics
Contributors
Author:
Li Li
Author:
Ullrich Steiner
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
