Dissecting the role of Bi and Ba in the catalytic efficiency of VSbBiBa/Al<sub>2</sub>O<sub>3</sub> catalysts in oxidative dehydrogenation and oxidation of propane

Bouzeggane, Alissa; Bargiela, Pascal; Aouine, M.; Checa, Ruben; Popescu, Ionel Cătălin; Marcu, Ioan–Cezar; Péruch, Olivier; Bellieres-Baca, Virginie; Millet, J.M.M.

doi:10.1039/d3cy00207a

Cited by 1 publication

(1 citation statement)

References 75 publications

(123 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, no exploration was conducted on the oxidation of C3H8 under different P contents o Pd. As we know, catalysts lower the activation energy of reactions, thereby redu reaction barrier and increasing the number of activated molecules in chemical re For propane oxidation, C-H cleavage is rate-determining [56,57]. A faster react means more activated molecules and a stronger ability to break the C-H bonds pane.…”

Section: Oxygen Storage Capacity (Osc) Of Cezrpal Supports With Diffe...mentioning

confidence: 99%

The Effect P Additive on the CeZrAl Support Properties and the Activity of the Pd Catalysts in Propane Oxidation

Feng,

Li,

Yang

et al. 2024

Materials

View full text Add to dashboard Cite

The properties of a catalyst support are closely related to the catalyst activity, yet the focus is often placed on the active species, with little attention given to the support properties. In this work, we specifically investigated the changes in support properties after the addition of P, as well as their impact on catalyst activity when used for catalyst preparation. We prepared the CeO2-ZrO2-P2O5-Al2O3 (CeZrPAl) composite oxides using the sol–gel, impregnation, and mechanical mixing methods, and characterized the support properties using techniques such as XRD, XPS, SEM-EDS, N2 adsorption–desorption, and Raman spectra. The results showed that the support prepared using the sol–gel method can exhibit a more stable phase structure, larger surface area, higher adsorption capacity for oxygen species, and greater oxygen storage capacity. The addition of an appropriate amount of P is necessary. On the one hand, the crystallization and growth of CePO4 can lead to a decrease in the Ce content in the cubic phase ceria–zirconia solid solution, resulting in a phase separation of the ceria–zirconia solid solution. On the other hand, CePO4 can lock some of the Ce3+/Ce4+ redox pairs, leading to a reduction in the adsorption of oxygen species and a decrease in the oxygen storage capacity of the CeZrPAl composite oxides. The research results indicated that the optimal P addition is 6 wt.% in the support. Therefore, we prepared a Pd/CeZrPAl catalyst using CeZrAl with 6 wt.% P2O5 as the support and conducted the catalytic oxidation of C3H8. Compared with the support without P added, the catalyst activity of the support loaded with P was significantly improved. The fresh and aged (1000 °C/5 h) catalysts decreased by 20 °C and 5 °C in T50 (C3H8 conversion temperature of 50%), and by 81 °C and 15 °C in T90 (C3H8 conversion temperature of 90%), respectively.

show abstract

Section: Oxygen Storage Capacity (Osc) Of Cezrpal Supports With Diffe...mentioning

confidence: 99%

The Effect P Additive on the CeZrAl Support Properties and the Activity of the Pd Catalysts in Propane Oxidation

Feng,

Li,

Yang

et al. 2024

Materials

View full text Add to dashboard Cite

show abstract

Dissecting the role of Bi and Ba in the catalytic efficiency of VSbBiBa/Al₂O₃ catalysts in oxidative dehydrogenation and oxidation of propane

Abstract: The oxidative dehydrogenation of propane into propene could be a way to produce propylene as an alternative to steam cracking or fluid catalytic cracking, if efficient catalysts were discovered and...

Cited by 1 publication

References 75 publications

The Effect P Additive on the CeZrAl Support Properties and the Activity of the Pd Catalysts in Propane Oxidation

The Effect P Additive on the CeZrAl Support Properties and the Activity of the Pd Catalysts in Propane Oxidation

Contact Info

Product

Resources

About

Dissecting the role of Bi and Ba in the catalytic efficiency of VSbBiBa/Al2O3 catalysts in oxidative dehydrogenation and oxidation of propane

Abstract: The oxidative dehydrogenation of propane into propene could be a way to produce propylene as an alternative to steam cracking or fluid catalytic cracking, if efficient catalysts were discovered and...

Cited by 1 publication

References 75 publications

The Effect P Additive on the CeZrAl Support Properties and the Activity of the Pd Catalysts in Propane Oxidation

The Effect P Additive on the CeZrAl Support Properties and the Activity of the Pd Catalysts in Propane Oxidation

Contact Info

Product

Resources

About

Dissecting the role of Bi and Ba in the catalytic efficiency of VSbBiBa/Al₂O₃ catalysts in oxidative dehydrogenation and oxidation of propane