Skip to Main content Skip to Navigation
Journal articles

Electrochemical Removal of NOx on Ceria-Based Catalyst-Electrodes

Abstract : This study reports the electrochemical properties for NOx reduction of a ceria-based mixed ionic electronic conducting porous electrode promoted by Pt nanoparticles, as efficient catalyst for NO oxidation, and BaO, as sorbent to store NOx. This catalytic layer was deposited by screen-printing on a dense membrane of gadolinia-doped ceria, an O2− ionic conductor. The targeted Ba and Pt loadings were 150 and 5 μg/cm2, respectively. The NOx selective electrochemical reduction was performed between 400 °C and 500 °C with and without oxygen in the feed. Variations of the open-circuit voltage with time were found to be a good sensor of the NOx storage process on the ceria-based catalyst-electrode. However, no N2 production was observed in the presence of O2 phase in spite of nitrates formation.
Document type :
Journal articles
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-01473456
Contributor : Andrée-Aimée Toucas <>
Submitted on : Tuesday, February 21, 2017 - 7:34:30 PM
Last modification on : Friday, June 18, 2021 - 11:50:12 AM

Links full text

Identifiers

Citation

Xi Wang, Alexandre Westermann, Yi Xiang Shi, Ning Sheng Cai, Mathilde Rieu, et al.. Electrochemical Removal of NOx on Ceria-Based Catalyst-Electrodes. Catalysts, MDPI, 2017, 7 (2), pp.61. ⟨10.3390/catal7020061⟩. ⟨hal-01473456⟩

Share

Metrics

Record views

306