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Reactivity and characteristics of Pd/MOF and Pd/calcinated-MOF catalysts for CO oxidation reaction: Effect of oxygen and hydrogen

Abbasi, F ; Sharif University of Technology | 2021

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  1. Type of Document: Article
  2. DOI: 10.1016/j.ijhydene.2021.01.237
  3. Publisher: Elsevier Ltd , 2021
  4. Abstract:
  5. For the first time, the effect of calcination process on characteristics and catalytic performances of Pd supported on different MOFs (MIL-101(Cr), NH2-MIL-101(Cr), and HKUST-1) was evaluated. Besides, the various orders of calcination process and reduction one on Pd/MOF and Pd/calcinated-MOF were studied, and their performances in CO oxidation reaction were presented to find the effect of H2 and O2. Results showed that the effect of calcination and reduction processes on the catalytic activities and characteristics strongly depends on the nature of MOF. Among MIL-based catalysts, the catalyst with no calcination treatment showed the best activity. Among MNH2-based catalysts, high activity was obtained for Pd/MNH2, Pd/MNH2-C, and Pd/MNH2(RC) samples and Pd/calcinated-MNH2was the best. Catalytic activities of HKUST-1-based catalysts decreased with calcination due to high changes in their structures. The results are useful for predicting the performance of MOFs in oxidation processes, especially reactions in which high oxygen concentrations are involved. © 2021 Hydrogen Energy Publications LLC
  6. Keywords:
  7. Calcination ; Hydrogen ; Oxidation ; Oxygen ; Palladium compounds ; Calcination treatment ; Catalytic performance ; Co oxidation ; Effect of oxygen ; High activity ; High oxygens ; Oxidation process ; Reduction process ; Catalyst activity
  8. Source: International Journal of Hydrogen Energy ; Volume 46, Issue 24 , 2021 , Pages 12822-12834 ; 03603199 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0360319921004699