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Scanning droplet cell for high throughput electrochemical and photoelectrochemical measurements

Gregoire, John M. and Xiang, Chengxiang and Liu, Xiaonao and Marcin, Martin and Jin, Jian (2013) Scanning droplet cell for high throughput electrochemical and photoelectrochemical measurements. Review of Scientific Instruments, 84 (2). Art. No. 024102. ISSN 0034-6748. https://resolver.caltech.edu/CaltechAUTHORS:20130509-154116203

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Abstract

High throughput electrochemical techniques are widely applied in material discovery and optimization. For many applications, the most desirable electrochemical characterization requires a three-electrode cell under potentiostat control. In high throughput screening, a material library is explored by either employing an array of such cells, or rastering a single cell over the library. To attain this latter capability with unprecedented throughput, we have developed a highly integrated, compact scanning droplet cell that is optimized for rapid electrochemical and photoeletrochemical measurements. Using this cell, we screened a quaternary oxide library as (photo)electrocatalysts for the oxygen evolution (water splitting) reaction. High quality electrochemical measurements were carried out and key electrocatalytic properties were identified for each of 5456 samples with a throughput of 4 s per sample.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.4790419DOIArticle
http://link.aip.org/link/doi/10.1063/1.4790419PublisherArticle
ORCID:
AuthorORCID
Gregoire, John M.0000-0002-2863-5265
Xiang, Chengxiang0000-0002-1698-6754
Additional Information:© 2013 American Institute of Physics. Received 15 October 2012; accepted 22 January 2013; published online 12 February 2013. This material is based upon work performed by the Joint Center for Artificial Photosynthesis, a DOE Energy Innovation Hub, supported through the Office of Science of the U.S. Department of Energy (Award No. DE-SC0004993). The authors thank Mr. Lung-Sheng Lin for assistance in fabrication of the cell and Mr. William Fisher of Lawrence Berkeley National Laboratory for assistance in fabrication of the capillary for the reference electrode. The authors also thank Dr. Eric McFarland, Dr. Nathan Lewis, Dr. Carl Koval, and Dr. Joachim Lewerenz for helpful discussions.
Group:JCAP
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0004993
Subject Keywords:catalysts; chemical variables measurement; drops; electrochemical electrodes
Issue or Number:2
Classification Code:PACS: 82.80.-d; 82.45.Fk
Record Number:CaltechAUTHORS:20130509-154116203
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130509-154116203
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:38401
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:09 May 2013 23:24
Last Modified:09 Mar 2020 13:19

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