Novel Base Catalysts by Nitridation of Zeolite Y: Characterization and Catalytic Evaluation

Abstract:

Novel base catalysts were obtained by subjecting Y zeolites to nitridation. These materials were characterized by elemental analysis, X-ray diffraction, BET surface area analysis, In situ diffuse reflectance infrared fourier transform Spectroscopy (in situ DRIFTS), Pyrrole adsorption. The results indicated nitrogen-incorporated NaY zeolite was well ordered and possess high surface area and pore volume. In situ DRIFTS experiments confirmed that N atoms had been introduced into the framework by nitridation to form -NH2- or -NH- species. It was found that Lewis basicity of these oxynitride materials increased by the pyrrole adsorption. Furthmore, the basic catalytic properties of nitrogen-incorporated zeolites were evaluated by Knoevenagal condensation of benzaldehyde with diethyl malonate and enhanced yield of product was achieved.

• Periodical: Advanced Materials Research (Volumes 148-149)
• Pages: 1096-1099
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.148-149.1096
• Online since: October 2010
• Authors: Gong Ming Peng, De Lian Yi, Lin Wu, Zhao Hui Ou Yang, Jian Guo Wang
• Keywords: In Situ DRIFTS, Knoevenagal Condensation, Nitridation, Pyrrole Adsorption

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