AI Article Synopsis
- The temperature reported in heterogeneous catalysis often doesn't accurately reflect the actual temperature of the catalyst itself, which can impact catalytic performance.
- EuOCl is used as a solid catalyst and thermometer to measure the catalyst temperature in real-time during the methane oxychlorination reaction, revealing a temperature difference of up to +16 °C between the catalyst and the oven.
- Understanding the temperature dynamics using operando thermometry could enhance our knowledge of catalysts and contribute to safer operations in chemical processes.
Article Abstract
Often the reactor or the reaction medium temperature is reported in the field of heterogeneous catalysis, even though it could vary significantly from the reactive catalyst temperature. The influence of the catalyst temperature on the catalytic performance and vice versa is therefore not always accurately known. We here apply EuOCl as both solid catalyst and thermometer, allowing for operando temperature determination. The interplay between reaction conditions and the catalyst temperature dynamics is studied. A maximum temperature difference between the catalyst and oven of +16 °C was observed due to the exothermicity of the methane oxychlorination reaction. Heat dissipation by radiation appears dominating compared to convection in this set-up, explaining the observed uniform catalyst bed temperature. Application of operando catalyst thermometry could provide a deeper mechanistic understanding of catalyst performances and allow for safer process operation in chemical industries.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10099702 | PMC |
| http://dx.doi.org/10.1002/anie.202211991 | DOI Listing |
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