11th International Conference on Environmental Catalysis (ICEC) 2020

The 11th International Conference on Environmental Catalysis (ICEC) took place between the 6th and 9th of September, 2020 using a virtual platform. Four Ph.D. students from the Chair of Reaction Engineering attended to give talks on emission control as well as renewable energy storage.

In her talk, Maria Consuelo Revilla Nebreda elucidated the characteristics of Pd/γ-Al2O3 diesel oxidation model catalysts which quantify their decrease of performance upon hydrothermal aging. She showed that the number of the Pd active sites decrease upon aging. Further, she indicated that aging at temperatures higher than 850°C also alter the nature of the active sites. Her results are relevant for the knowledge-based improvement of the long-term stability of diesel oxidation catalysts.

Enno Eßer had the opportunity to present his latest results with his talk on “Low-temperature NOx reduction by H2 on Pt/W/ZrO2 catalysts in exhaust gas of H2 combustion engines”. His talk about this new approach on NOx reduction specifically for H2 combustion engines was well received and will be one building block to a globally CO2 neutral and locally emission free mobility concept.

A number of talks at the conference demonstrated the high relevance of noble metals in emission control especially as oxidation catalysts for Diesel or natural gas engines. In his talk, Christian Singer focused on the development of low-cost alternatives to replace conventional noble metal-based catalyst. Alumina-supported iron oxide catalysts were investigated for the oxidation of CO representing a promising catalysts for the application in lean burned, stationary combustion engines.

Zeynep Baysal gave a talk on the development of Fe based catalysts for CO2 methanation targeting the storage of renewable electricity. She presented her results on the structure-activity relation and technical evaluation of Mg/Fe catalysts in the hydrogenation of CO2 to CH4. Her talk reflected the high potential of Fe based catalysts for CO2 methanation and remarked further design strategies to optimize Mg/Fe catalysts for an efficient operation and long-term stability.