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Title: Substrate Selection for Fundamental Studies of Electrocatalysts and Photoelectrodes: Inert Potential Windows in Acidic, Neutral, and Basic Electrolyte

Abstract

The selection of an appropriate substrate is an important initial step for many studies of electrochemically active materials. In order to help researchers with the substrate selection process, we employ a consistent experimental methodology to evaluate the electrochemical reactivity and stability of seven potential substrate materials for electrocatalyst and photoelectrode evaluation. Using cyclic voltammetry with a progressively increased scan range, we characterize three transparent conducting oxides (indium tin oxide, fluorine-doped tin oxide, and aluminum-doped zinc oxide) and four opaque conductors (gold, stainless steel 304, glassy carbon, and highly oriented pyrolytic graphite) in three different electrolytes (sulfuric acid, sodium acetate, and sodium hydroxide). Here, we determine the inert potential window for each substrate/electrolyte combination and make recommendations about which materials may be most suitable for application under different experimental conditions. Furthermore, the testing methodology provides a framework for other researchers to evaluate and report the baseline activity of other substrates of interest to the broader community.

Authors:
 [1];  [1];  [1];  [1]
  1. Stanford Univ., Stanford, CA (United States)
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC), Washington, D.C. (United States). Center on Nanostructuring for Efficient Energy Conversion (CNEEC)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1370703
Grant/Contract Number:  
SC0001060
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
PLoS ONE
Additional Journal Information:
Journal Volume: 9; Journal Issue: 10; Related Information: CNEEC partners with Stanford University (lead); Carnegie Institution at Stanford; Technical University of Denmark; Journal ID: ISSN 1932-6203
Publisher:
Public Library of Science
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; catalysis (heterogeneous); solar (fuels); photosynthesis (natural and artificial); bio-inspired; electrodes - solar; defects; charge transport; materials and chemistry by design; synthesis (novel materials)

Citation Formats

Benck, Jesse D., Pinaud, Blaise A., Gorlin, Yelena, and Jaramillo, Thomas F. Substrate Selection for Fundamental Studies of Electrocatalysts and Photoelectrodes: Inert Potential Windows in Acidic, Neutral, and Basic Electrolyte. United States: N. p., 2014. Web. doi:10.1371/journal.pone.0107942.
Benck, Jesse D., Pinaud, Blaise A., Gorlin, Yelena, & Jaramillo, Thomas F. Substrate Selection for Fundamental Studies of Electrocatalysts and Photoelectrodes: Inert Potential Windows in Acidic, Neutral, and Basic Electrolyte. United States. doi:10.1371/journal.pone.0107942.
Benck, Jesse D., Pinaud, Blaise A., Gorlin, Yelena, and Jaramillo, Thomas F. Thu . "Substrate Selection for Fundamental Studies of Electrocatalysts and Photoelectrodes: Inert Potential Windows in Acidic, Neutral, and Basic Electrolyte". United States. doi:10.1371/journal.pone.0107942. https://www.osti.gov/servlets/purl/1370703.
@article{osti_1370703,
title = {Substrate Selection for Fundamental Studies of Electrocatalysts and Photoelectrodes: Inert Potential Windows in Acidic, Neutral, and Basic Electrolyte},
author = {Benck, Jesse D. and Pinaud, Blaise A. and Gorlin, Yelena and Jaramillo, Thomas F.},
abstractNote = {The selection of an appropriate substrate is an important initial step for many studies of electrochemically active materials. In order to help researchers with the substrate selection process, we employ a consistent experimental methodology to evaluate the electrochemical reactivity and stability of seven potential substrate materials for electrocatalyst and photoelectrode evaluation. Using cyclic voltammetry with a progressively increased scan range, we characterize three transparent conducting oxides (indium tin oxide, fluorine-doped tin oxide, and aluminum-doped zinc oxide) and four opaque conductors (gold, stainless steel 304, glassy carbon, and highly oriented pyrolytic graphite) in three different electrolytes (sulfuric acid, sodium acetate, and sodium hydroxide). Here, we determine the inert potential window for each substrate/electrolyte combination and make recommendations about which materials may be most suitable for application under different experimental conditions. Furthermore, the testing methodology provides a framework for other researchers to evaluate and report the baseline activity of other substrates of interest to the broader community.},
doi = {10.1371/journal.pone.0107942},
journal = {PLoS ONE},
number = 10,
volume = 9,
place = {United States},
year = {Thu Oct 30 00:00:00 EDT 2014},
month = {Thu Oct 30 00:00:00 EDT 2014}
}

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Cited by: 30 works
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