1. A green and facile synthesis of Co3O4 monolithic catalyst with enhanced total oxidation of propane performance
- Author
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Wang Zexuan, Yuan Jing, Zhang Xiaolan, Zhang Lin, Cai Ting, Zhao Kunfeng, Yang Ling, Dannong He, Peng Gao, and Xiao Bei
- Subjects
Materials science ,Bond strength ,Process Chemistry and Technology ,chemistry.chemical_element ,02 engineering and technology ,General Chemistry ,Activation energy ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Microstructure ,01 natural sciences ,Catalysis ,0104 chemical sciences ,Nickel ,chemistry.chemical_compound ,Key factors ,Chemical engineering ,chemistry ,Propane ,0210 nano-technology ,Space velocity - Abstract
A nanoflower-like nickel foam supported Co3O4 (Co-NF) monolithic catalyst was synthesized via a green and facile electro-deposition strategy. The optimized Co-NF presents much higher catalytic activity per Co3O4 loading, ca. 6.7 × 10−4 mol/(gCo3O4·s) at 220 °C and exhibits a lower activation energy of 46 kJ/mol compared with powder Co3O4. It also exhibited good stability (e.g. >80% propane conversion) for 40 h at 350 °C and a GHSV of 30,000 mL/(gcat·h) without any notable decrease. The 3D hierarchical microstructures with interconnected pore channels, the high Co2+ content and the weak Co O bond strength of Co-NF-300 s were considered key factors responsible for the good activity and stability in the propane catalytic total oxidation.
- Published
- 2018