Catalytic and Electrical Properties of Electrochemical NOx Reduction System

Toshiaki Yamaguchi; Yuko Kato; Koichi Kikuta; Toshio Suzuki; Yoshinobu Fujishiro; Masanobu Awano; Shin Ichi Hirano

doi:10.4028/www.scientific.net/AST.45.2039

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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 45Catalytic and Electrical Properties of...

Catalytic and Electrical Properties of Electrochemical NOx Reduction System

Abstract:

The catalytic and electrical properties of an electrochemical NOx reduction system were investigated. A power above 3.5W/cm2 reduced more than 60% of NOx to N2 over the (La,Sr)CoO3-α/Ce0.9Gd0.1O1.95/Pt laminated system in a temperature range of 450°C to 650°C. O2- transportation removed the oxygen around the cathode layer through the Ce0.9Gd0.1O1.95 electrolyte layer, then NO was able to decompose to N2 at the cathode. This ceria-based system exhibited stable NOx reduction with respect to electrical power, regardless of operating temperature.

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Advances in Science and Technology (Volume 45)

Pages:

2039-2042

DOI:

https://doi.org/10.4028/www.scientific.net/AST.45.2039

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Online since:

October 2006

Authors:

Toshiaki Yamaguchi, Yuko Kato, Koichi Kikuta, Toshio Suzuki, Yoshinobu Fujishiro, Masanobu Awano, Shin Ichi Hirano

Keywords:

Ceria Electrolyte, Electrochemical System, NO_x Reduction

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