Ammonia decomposition over Ce and La-based materials in an electric field
Valeriia Maslova1, Elodie Fourré1, André Grishin2, Gleb Veryasov2, Catherine Batiot-Dupeyrat1, *
* The author to whom correspondence should be addressed.
1 IC2MP, ENSIP, Université de Poitiers - UMR CNRS 7285, 1 rue Marcel Doré, TSA 41105, 86073 Poitiers cedex 9, France
2 TotalEnergies One Tech Belgium Zone Industrielle C7181-Feluy, Belgium
Abstract
Ammonia decomposition into hydrogen and nitrogen was performed under electric-field in a point to plane reactor at ambient temperature and pressure. A set of four catalysts presenting various structures, namely cerium dioxide (CeO2) and lanthanum oxide (La2O3), along with cerium phosphate (CePO4) and cerium zirconate (CeZrO4), were assessed for their efficiency in the reaction. The best results in terms of activity, expressed as the number of mole of ammonia decomposed per weight of catalyst, were obtained with CePO4, followed by CeZrO4, CeO2 and La2O3. It corresponds to the material possessing the highest pore volume and the lowest permittivity.
Keywords - Ammonia, electric field, catalyst.