Journal article
Communication—Perovskite Electrochemical System for Highly Selective NOx Reduction of Diesel Engine Exhaust
Shenzhen University1
Department of Energy Conversion and Storage, Technical University of Denmark2
Proton conductors, Department of Energy Conversion and Storage, Technical University of Denmark3
Southern University of Science and Technology4
Electrochemical Materials and Interfaces, Department of Energy Conversion and Storage, Technical University of Denmark5
A perovskite electrochemical system was developed for selective NOx reduction of diesel engine exhaust. The system was composed of a La0.9Sr0.1CoO3±δ oxidation catalyst and a (La0.85Sr0.15)0.95MnO3±δ/Ce0.9Gd0.1O1.95 electrochemical cell with BaO nanopariticles. A selectivity of 25–35% was achieved with a NOx conversion of 65–75% in 1000 ppm NO with 8% O2 at 375°C.
The superior performance of the system was suggested to be ascribed to the promotion in NO2 formation substantially activating the NOx trapping and reduction processes on the electrode.
| Language: | English |
|---|---|
| Publisher: | The Electrochemical Society |
| Year: | 2018 |
| Pages: | H591-H593 |
| ISSN: | 19457111 and 00134651 |
| Types: | Journal article |
| DOI: | 10.1149/2.0261810jes |
| ORCIDs: | Zhang, Wenjing , Hansen, Kent Kammer and 0000-0002-0514-5642 |
