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Title: Humidity Effect on Nanoscale Electrochemistry in Solid Silver Ion Conductors and the Dual Nature of Its Locality

Abstract

Scanning probe microscopy (SPM) is a powerful tool to investigate electrochemistry in nanoscale volumes. While most SPM-based studies have focused on reactions at the tip-surface junction, charge and mass conservation requires coupled and intrinsically non-local cathodic and anodic processes that can be significantly affected by ambient humidity. Here, we explore the role of water in both cathodic and anodic processes, associated charge transport, and topographic volume changes depending on the polarity of tip bias. The first-order reversal curve current-voltage technique combined with simultaneous detection of the sample topography, referred to as FORC-IVz, was applied to a silver solid ion conductor. We found that the protons generated from water affect silver ionic conduction, silver particle formation and dissolution, and mechanical integrity of the material. This work highlights the dual nature (simultaneously local and non-local) of electrochemical SPM studies, which should be considered for comprehensive understanding of nanoscale electrochemistry.

Authors:
 [1];  [1];  [1];  [1];  [2];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Seoul National Univ. (Korea, Republic of)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1185744
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 15; Journal Issue: 2; Journal ID: ISSN 1530-6984
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; humidity; electrochemistry; silver; ionic conduction; locality; scanning probe microscopy

Citation Formats

Yang, Sangmo, Strelcov, Evgheni, Paranthaman, Mariappan Parans, Tselev, Alexander, Noh, Tae Won, and Kalinin, Sergei V. Humidity Effect on Nanoscale Electrochemistry in Solid Silver Ion Conductors and the Dual Nature of Its Locality. United States: N. p., 2015. Web. doi:10.1021/nl5040286.
Yang, Sangmo, Strelcov, Evgheni, Paranthaman, Mariappan Parans, Tselev, Alexander, Noh, Tae Won, & Kalinin, Sergei V. Humidity Effect on Nanoscale Electrochemistry in Solid Silver Ion Conductors and the Dual Nature of Its Locality. United States. https://doi.org/10.1021/nl5040286
Yang, Sangmo, Strelcov, Evgheni, Paranthaman, Mariappan Parans, Tselev, Alexander, Noh, Tae Won, and Kalinin, Sergei V. 2015. "Humidity Effect on Nanoscale Electrochemistry in Solid Silver Ion Conductors and the Dual Nature of Its Locality". United States. https://doi.org/10.1021/nl5040286. https://www.osti.gov/servlets/purl/1185744.
@article{osti_1185744,
title = {Humidity Effect on Nanoscale Electrochemistry in Solid Silver Ion Conductors and the Dual Nature of Its Locality},
author = {Yang, Sangmo and Strelcov, Evgheni and Paranthaman, Mariappan Parans and Tselev, Alexander and Noh, Tae Won and Kalinin, Sergei V.},
abstractNote = {Scanning probe microscopy (SPM) is a powerful tool to investigate electrochemistry in nanoscale volumes. While most SPM-based studies have focused on reactions at the tip-surface junction, charge and mass conservation requires coupled and intrinsically non-local cathodic and anodic processes that can be significantly affected by ambient humidity. Here, we explore the role of water in both cathodic and anodic processes, associated charge transport, and topographic volume changes depending on the polarity of tip bias. The first-order reversal curve current-voltage technique combined with simultaneous detection of the sample topography, referred to as FORC-IVz, was applied to a silver solid ion conductor. We found that the protons generated from water affect silver ionic conduction, silver particle formation and dissolution, and mechanical integrity of the material. This work highlights the dual nature (simultaneously local and non-local) of electrochemical SPM studies, which should be considered for comprehensive understanding of nanoscale electrochemistry.},
doi = {10.1021/nl5040286},
url = {https://www.osti.gov/biblio/1185744}, journal = {Nano Letters},
issn = {1530-6984},
number = 2,
volume = 15,
place = {United States},
year = {Wed Jan 07 00:00:00 EST 2015},
month = {Wed Jan 07 00:00:00 EST 2015}
}

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Cited by: 23 works
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  • Rodrigues, Ana Candida Martins; Nascimento, Marcio Luis Ferreira; Bragatto, Caio Barca
  • The Journal of Chemical Physics, Vol. 135, Issue 23
  • https://doi.org/10.1063/1.3666835

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