Journal article
Electrochemical reduction of NO on La2-xSrxNiO4 based electrodes
Electroceramics, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
Electrochemistry, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark4
The series La2 − x Sr x NiO4 (x = 0.0, 0.05, 0.15, 0.25, 0.35, and 1.0) was tested for functionality as electrode materials for direct electrochemical reduction of NO. The materials were tested using cyclic voltammetry in 1% NO and 10% O2 in Ar on a cone-shaped electrode. The best materials for the electrochemical reduction of NO are La2NiO4 and LaSrNiO4, which have current densities for NO reduction 1.82 and 7.09 times higher, respectively, than for O2 at 400 °C.
Increasing the temperature decreased the ability to reduce NO before O2 while the activity increased. The adsorbed species during direct decomposition was attempted, clarified using X-ray absorption near-edge structure experiments and thermogravimetry, but no conclusive results were obtained.
| Language: | English |
|---|---|
| Publisher: | Springer-Verlag |
| Year: | 2009 |
| Pages: | 1529-1534 |
| Journal subtitle: | Current Research and Development in Science and Technology |
| ISSN: | 14330768 and 14328488 |
| Types: | Journal article |
| DOI: | 10.1007/s10008-008-0711-3 |
| ORCIDs: | Hagen, Anke and Kammer Hansen, Kent |
