Carbon-Supported Nickel Catalysts—Comparison in Alpha-Pinene Oxidation Activity

In this work, carbon-supported nickel catalysts with different Ni content (1, 2.5, 5, 10, and 20 wt%) were tested in the oxidation of alpha-pinene solvent-free reaction conditions. The process catalyst preparation consisted two stages. first stage, activated carbon from spent coffee grounds was obtained. second active phase form compounds applied using methods: (1) impregnation material salt solution, next reduction H2, (2) hydrothermal method autoclave reductor stabilizer. obtained subjected to following instrumental studies: FT-IR, XRD, SEM, N2 adsorption at −196 °C. performed catalytic tests showed that containing 5 wt% (porous by method) 1 most alpha-pinene, main products oxide, verbenol, verbenone. Ultimately, turned out be more advantageous because it allows one obtain higher selectivities epoxide compound, probably due greater stability organic compound pores.