A Novel Carbon-Resistant Perovskite Catalyst for Hydrogen Production Using Methane Dry Reforming

• Published in: Topics in catalysis Vol. 64; no. 5-6; pp. 348 - 356
• Main Authors: Alenazey, Feraih, AlOtaibi, Bandar, Otaibi, Raja A. L., Alyousef, Yousef, Alqahtania, Salma, Qazaq, Amjad, Zahid, Umer, Vo, Dai-Viet N., Adesina, Adesoji
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.05.2021; Springer Nature B.V
• Subjects: Carbon; Catalysis; Catalysts; Cerium oxides; Characterization and Evaluation of Materials; Chemistry; Chemistry and Materials Science; Coking; Hydrogen production; Industrial Chemistry/Chemical Engineering; Methane; Original Paper; Oxidation; Particle size distribution; Perovskites; Pharmacy; Photoelectrons; Physical Chemistry; Reforming; Sol-gel processes; Perovskite catalyst; Carbon deposition; Methane dry reforming; Hydrogen; Sol-gel
• ISSN: 1022-5528; 1572-9028
• DOI: 10.1007/s11244-020-01406-9

The aim of this study was to evaluate a perovskite catalyst for use as a carbon-resistant catalyst in methane dry reforming. The oxygen-rich ABO 3+δ (CeCo x Ni 1-x O 3+δ ) perovskite was selected for this investigation due to its crystalline nature and ability to accommodate a wide range of cations; perovskites notably possess catalytically advantageous oxidation and reduction properties. The perovskite catalysts were prepared as multicomponent oxides by sol-gel synthesis, which is considered a most effective technique for preparing these compounds. The properties of fresh catalysts were evaluated through X-ray diffraction, Brunauer-Emmett-Teller surface area analysis, particle size distribution analysis, X-ray photoelectron spectroscopy, and scanning electron microscopy. The tested catalysts exhibited superior catalytic performance over previously-studied ABO 3 catalysts, such as LaCoO 3 and LaNiO 3 systems. This high performance is attributed to electronic interactions between the Co and Ni sites, which results from the atomic-level mixing of ingredients in the sol-gel method. Analysis results revealed that when used as a catalyst in methane dry reforming, the presence of ceria in the perovskite system can improve coking resilience and confer stability even under prolonged usage in a carbon-rich environment.