Abstract
We report the synthesis of a promising carbon nanofiber–titania–cordierite monolith composite, i.e., CNF/TiO2/monolith, and its application as catalyst support in selective hydrogenation of cinnamaldehyde (CAL) to hydrocinnamic aldehyde (HCAL). The composite was synthesized through TiO2 coating on the surface of the monolith and the following CNF growth on it. Synthesized CNF/TiO2/monolith was subsequently employed to prepare its supported palladium catalysts, Pd/CNF/TiO2/monolith. Attachment strength and acid-resistant properties of the composite have been studied to evaluate its structural stability in some severe conditions. In addition, the effects of supported Pd particles, oxygen-containing surface groups, and internal diffusion limitation on catalytic performance over Pd/CNF/TiO2/monolith were further studied. Results revealed that the total BET surface area of the composite was 31 m2/g, and the macro- and mesopore structure dominated the pore space of the material (about 93%). Meanwhile, 94% of th...
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