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Title: Roles of reaction kinetics of CO 2 on a PrBaCo 2O 5.5+δ surfaces

A symmetric PBCO/YSZ/PBCO cell (where PBCO refers to PrBaCo 2O 5.5+δ, and YSZ to yttria stabilized zirconia) was designed and fabricated for the investigation of the catalytic nature and reaction kinetics of CO 2 on PBCO surfaces. The electrochemical impedance spectroscopy was employed to probe the CO 2 reaction behavior on the PBCO electrode. The symmetric equivalent circuit cell characterization reveals that the surface resistance of CO 2 on PBCO is only 30.2 Ω cm 2 and the maximum surface exchange coefficient k chem is 2.0 × 10 -4 cm s -1 at 1147 K, suggesting that PBCO can be an excellent candidate for CO 2 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:
Grant/Contract Number:
FE0003780
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
Research Org:
Univ. of Texas, San Antonio, TX (United States)
Sponsoring Org:
USDOE Office of Fossil Energy (FE)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1427977