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Seriatim ECSTM-ECPMIRS of the adsorption of carbon monoxide on Cu(100) in alkaline solution at CO_2-reduction potentials

Baricuatro, Jack H. and Kim, Youn-Geun and Korzeniewski, Carol L. and Soriaga, Manuel P. (2018) Seriatim ECSTM-ECPMIRS of the adsorption of carbon monoxide on Cu(100) in alkaline solution at CO_2-reduction potentials. Electrochemistry Communications, 91 . pp. 1-4. ISSN 1388-2481. https://resolver.caltech.edu/CaltechAUTHORS:20180425-144714864

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Abstract

It was recently demonstrated that the sequential or seriatim application of electrochemical scanning tunneling microscopy (ECSTM) and differential electrochemical mass spectrometry (DEMS) enables the correlation, under actual reaction conditions, of a specific structure on a Cu electrode surface with the generation of a particular CO-reduction product. As an extension of the operando hyphenated-technique approach, we paired ECSTM with electrochemical polarization-modulation IR reflection-absorption spectroscopy (ECPMIRS) to identify a delineating potential that affected the coverage, the molecular orientation, and the adlattice structure of CO adsorbed on Cu(100) in 0.1 M KOH under CO_2-reduction conditions. The results may have significant ramifications on the theory-based reaction mechanism for the formation of C_2 compounds, as well as insights into the mode of coordination between CO and zerovalent Cu.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.elecom.2018.04.016DOIArticle
ORCID:
AuthorORCID
Kim, Youn-Geun0000-0002-5936-6520
Soriaga, Manuel P.0000-0002-0077-6226
Alternate Title:Seriatim ECSTM-ECPMIRS of the adsorption of carbon monoxide on Cu(100) in alkaline solution at CO2 -reduction potentials
Additional Information:© 2018 Elsevier. Received 11 March 2018; Received in revised form 18 April 2018; Accepted 20 April 2018. Available online 22 April 2018. 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 under Award No. DE-SC0004993.
Group:JCAP
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0004993
Subject Keywords:Seriatim ECSTM-ECPMIRS; Operando electrode-surface nanoscopy; Operando molecular vibrational spectroscopy; Potential-dependent CO adsorption on Cu(100); Electrochemical reduction of CO2 in alkaline solution
Record Number:CaltechAUTHORS:20180425-144714864
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180425-144714864
Official Citation:Jack H. Baricuatro, Youn-Geun Kim, Carol L. Korzeniewski, Manuel P. Soriaga, Seriatim ECSTM-ECPMIRS of the adsorption of carbon monoxide on Cu(100) in alkaline solution at CO2-reduction potentials, Electrochemistry Communications, Volume 91, June 2018, Pages 1-4, ISSN 1388-2481, https://doi.org/10.1016/j.elecom.2018.04.016. (https://www.sciencedirect.com/science/article/pii/S1388248118300869)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86044
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:25 Apr 2018 23:03
Last Modified:03 Oct 2019 19:38

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