101. Deactivation of the Ce/TiO2Catalyst by POx for Selective Catalytic Reduction of NO with NH3: An Undergraduate Laboratory Experiment
- Author
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Guo, Rui-tang, Wang, Qing-shan, and Pan, Wei-guo
- Abstract
The chemical experiment in this study is specifically created for undergraduate students studying energy and the environment. The target of the experiment is for students to comprehend the deactivation mechanism of the Ce/TiO2catalyst by oxides of phosphorus through practical experiments and enhance their knowledge of environmental technologies. More significantly, experiments can enable students to understand the poisoning mechanism of selective catalytic reduction (SCR) catalysts and understand various equipment for developing SCR catalysts. Fly ash containing oxides of phosphorus can deactivate SCR catalysts. The student group investigates and explains the poisoning effect of oxides of phosphorus on the Ce/TiO2catalyst in this study, using experimental and characterization techniques such as BET, XRD, H2-TPR, NH3-TPD, XPS, and DRIFT to support the findings. Then, the students’ grades in the laboratory experiments are determined by their performance in experimental operations, catalyst preparation, SCR activity, and poisoning effect analysis. It is encouraging that with this experiment, students may link their understanding of chemistry with practical operation, motivating them to carry out more research on SCR catalysts.
- Published
- 2024
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