Hydrolysis of ethyl acetate and starch in water and of cellulose in an ionic liquid by using HY and HZSM-5 solid acid catalysts are compared. In water, HZSM-5 is more active than HY. This trend is reversed in ionic liquid. Reactivity differences are explained based on interactions between solvent and catalyst acid site local environments, which depend on zeolite channel structure and Si/Al rati...

Cobalt molybdenum catalysts supported on novel activated carbon-HZSM-5 composites with different mass ratios were prepared by wet-impregnation method and pre-sulfided CS2. Characterization of these was done using X-ray powder diffraction, Fourier transform infrared spectroscopy, N2 adsorption-desorption, scanning electron microscope analytics. Their activity for the hydrodesulfurization reactio...

Graphene-encapsulated nickel nanoclusters are a feasible strategy to inhibit the deactivation of nickel-based catalysts. In this work, graphene-encapsulated catalysts (Ni@C/HZSM-5) were prepared by compression forming process, using pseudo-boehmite, Al2O3, and ZrO2 as binders. The pseudo-boehmite was gradually transformed from amorphous crystalline alumina at high temperatures, which destroyed ...