Methane-to-methanol conversion and power co-generation on palladium: nickel supported on antimony tin oxide catalysts in a polymeric electrolyte reactor-fuel cell (PER-FC)

• Published in: Research on chemical intermediates 2022-12, Vol.48 (12), p.5155-5168
• Main Authors: Coelho, Jessica F., Filho, Nivaldo G. P., Gutierrez, Isabely M., Godoi, Camila M., Gomes, Paulo V. R., Zambiazi, Priscilla J., de Souza, Rodrigo F. B., Neto, Almir O.
• Format: Article
• Language: English
• Subjects: Catalysis; Catalysts; Chemistry; Chemistry and Materials Science; Cogeneration; Conversion; Fuel cells; High performance liquid chromatography; Infrared spectroscopy; Inorganic Chemistry; Metal oxides; Methane; Methanol; Nanoparticles; Nickel; Oxidation; Palladium; Physical Chemistry; Tin dioxide; Tin oxides
• ISSN: 0922-6168; 1568-5675
• DOI: 10.1007/s11164-022-04857-9

The use of palladium nickel catalysts with different compositions supported metal oxides, such as Sb 2 O 5 ·SnO 2 (ATO) catalyst combinations were employed to convert the methane-to-methanol in mild conditions using a fuel cell polymer electrolyte reactor. The catalysts used for the conversion of methane to methanol were characterized by XRD and observed the phases of ATO, the face-centered cubic structure of the Pd and Ni phases. All nanoparticles have a mean size between 9 and 12 nm as measured by TEM images. The products obtained from the methane oxidation, such as methanol and formate, were monitored using FT-IR spectroscopy to qualify the products formation, while High-Performance Liquid Chromatography was used to quantify them. In these studies, it was observed that as the electrical potential of the reactor increases, the generation of products decreases. The best results for the conversion of methane into methanol and energy co-generation were obtained from Pd 50 Ni 50 /ATO.