Steven Angel

Spray-flame synthesis of perovskite nanoparticles and validation of their activity in catalytic combustion

  • Evaluation of different experimental conditions such as the type, concentration and flow of the solution of precursors and gases into a Spray-Flame Synthesis reactor to obtain perovskite-like oxides LaBO3 (B = Co, Sr, Mn, Ni)
  • Determination of the physicochemical properties of the synthesized perovskites through different analytic techniques such as XRD, TPR, SEM, TEM, ICP-AES and TGA
  • Investigation of the catalytic activity of the synthesized perovskites in correlation with the physicochemical properties of the compounds using combustion reactions such as oxidation of CO and methane as reaction models

Publications

Angel, S.; Schneider, F.; Apazeller, S.; Kaziur-Cegla, W.; Schmidt, T. C.; Schulz, C.; Wiggers, H., Spray-flame synthesis of LaMO3 (M = Mn, Fe, Co) perovskite nanomaterials: Effect of spray droplet size and esterification on particle size distribution. P. Combust. Inst. 2021, 38, 1279-1287, https://doi.org/10.1016/j.proci.2020.07.116.

Angel, S.; Tapia, J. D.; Gallego, J.; Hagemann, U.; Wiggers, H., Spray-flame synthesis of LaMnO3+δ nanoparticles for selective CO oxidation (SELOX). Energy & Fuels 2021, 35, 4367-4376, https://doi.org/10.1021/acs.energyfuels.0c03659.

Wollny, P.; Angel, S.; Wiggers, H.; Kempf, A. M.; Wlokas, I., Multiscale simulation of the formation of platinum-particles on alumina nanoparticles in a spray flame experiment. Fluids 2020, 5(4), 201; https://doi.org/10.3390/fluids5040201.

Carvajal, L.; Buitrago-Sierra, R.; Santamaría, A.; Angel, S.; Wiggers, H.; Gallego, J., Effect of spray parameters in a spray flame reactor during FexOy nanoparticles synthesis. J. Therm. Spray Tech. 2020, 29, 368-383, https://doi.org/10.1007/s11666-020-00991-1.

Angel, S.; Neises, J.; Dreyer, M.; Friedel Ortega, K.; Behrens, M.; Wang, Y.; Arandiyan, H.; Schulz, C.; Wiggers, H., Spray‐flame synthesis of La(Fe, Co)O3 nano‐perovskites from metal nitrates. AIChE J. 2020, 66, 1, 216748, https://doi.org/10.1002/aic.16748.

Steven Angel
steven.angel(at)cec.mpg.de

Group: Prof. C. Schulz, Faculty of Engineering, Universität Duisburg-Essen