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Title: Roles of reaction kinetics of CO2 on a PrBaCo2O5.5+δ surfaces

Abstract

A symmetric PBCO/YSZ/PBCO cell (where PBCO refers to PrBaCo2O5.5+δ, and YSZ to yttria stabilized zirconia) was designed and fabricated for the investigation of the catalytic nature and reaction kinetics of CO2 on PBCO surfaces. The electrochemical impedance spectroscopy was employed to probe the CO2 reaction behavior on the PBCO electrode. The symmetric equivalent circuit cell characterization reveals that the surface resistance of CO2 on PBCO is only 30.2 Ω cm2 and the maximum surface exchange coefficient kchem is 2.0 × 10-4 cm s-1 at 1147 K, suggesting that PBCO can be an excellent candidate for CO2 reduction.

Authors:
 [1];  [1];  [1];  [1];  [1]; ORCiD logo [1];  [2]
  1. Univ. of Texas, San Antonio, TX (United States). Dept. of Physics & Astronomy
  2. North Carolina State Univ., Raleigh, NC (United States). Dept. of Chemistry
Publication Date:
Research Org.:
Univ. of Texas, San Antonio, TX (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1427977
Grant/Contract Number:  
FE0003780
Resource Type:
Accepted Manuscript
Journal Name:
RSC Advances
Additional Journal Information:
Journal Volume: 7; Journal Issue: 64; Journal ID: ISSN 2046-2069
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Xu, Xing, Mace, Brennan, Enriquez, Erik, Bao, Shanyong, Harrell, Zach, Chen, Chonglin, and Whangbo, Myung-Hwan. Roles of reaction kinetics of CO2 on a PrBaCo2O5.5+δ surfaces. United States: N. p., 2017. Web. doi:10.1039/c7ra06362h.
Xu, Xing, Mace, Brennan, Enriquez, Erik, Bao, Shanyong, Harrell, Zach, Chen, Chonglin, & Whangbo, Myung-Hwan. Roles of reaction kinetics of CO2 on a PrBaCo2O5.5+δ surfaces. United States. doi:10.1039/c7ra06362h.
Xu, Xing, Mace, Brennan, Enriquez, Erik, Bao, Shanyong, Harrell, Zach, Chen, Chonglin, and Whangbo, Myung-Hwan. Fri . "Roles of reaction kinetics of CO2 on a PrBaCo2O5.5+δ surfaces". United States. doi:10.1039/c7ra06362h. https://www.osti.gov/servlets/purl/1427977.
@article{osti_1427977,
title = {Roles of reaction kinetics of CO2 on a PrBaCo2O5.5+δ surfaces},
author = {Xu, Xing and Mace, Brennan and Enriquez, Erik and Bao, Shanyong and Harrell, Zach and Chen, Chonglin and Whangbo, Myung-Hwan},
abstractNote = {A symmetric PBCO/YSZ/PBCO cell (where PBCO refers to PrBaCo2O5.5+δ, and YSZ to yttria stabilized zirconia) was designed and fabricated for the investigation of the catalytic nature and reaction kinetics of CO2 on PBCO surfaces. The electrochemical impedance spectroscopy was employed to probe the CO2 reaction behavior on the PBCO electrode. The symmetric equivalent circuit cell characterization reveals that the surface resistance of CO2 on PBCO is only 30.2 Ω cm2 and the maximum surface exchange coefficient kchem is 2.0 × 10-4 cm s-1 at 1147 K, suggesting that PBCO can be an excellent candidate for CO2 reduction.},
doi = {10.1039/c7ra06362h},
journal = {RSC Advances},
number = 64,
volume = 7,
place = {United States},
year = {2017},
month = {8}
}

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