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Facile modifications of HKUST-1 by V, Nb and Mn for low-temperature selective catalytic reduction of nitrogen oxides by NH 3

Abstract : HKUST-1 catalysts were impregnated with vanadium, niobium and manganese species and tested in NH 3-SCR for NO removal. No reduction of NO by NH 3 was registered for the unmodified HKUST-1 and disappearance of NO was attributed to adsorption. After a pretreatment at 185°C, the best catalytic performance was found for HKUST-1-Mn with 100% and 80% conversion of NH 3 and NO, respectively at 185°C. For the first time, the H 2 O tolerance was examined on the modified HKUST-1 catalyst. The addition of water vapor resulted in decrease of NO and NH 3 conversions, which was immediately recovered when H 2 O feeding was stopped. The NO conversion dropped from 76% to 68% after 35 min of H 2 O addition.
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https://hal.archives-ouvertes.fr/hal-03517472
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Soumis le : vendredi 7 janvier 2022 - 18:13:26
Dernière modification le : vendredi 1 avril 2022 - 09:37:34

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Katarzyna Świrk, Gérard Delahay, Abdelali Zaki, Karim Adil, Amandine Cadiau. Facile modifications of HKUST-1 by V, Nb and Mn for low-temperature selective catalytic reduction of nitrogen oxides by NH 3. Catalysis Today, Elsevier, 2022, 384-386, pp.25-32. ⟨10.1016/j.cattod.2021.07.017⟩. ⟨hal-03517472⟩

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