Metal phase and electron density of transition metal/HZSM-5 Available to Purchase

Transition metals (TM) are widely used as catalysts in various organic and organometallic reactions. Sabatier’s research showed that the catalytically active properties of TM are influenced by the bonding strength of the metal-reactants. Meanwhile, the determinant properties of the bonding strength of metal-reactants are the crystal lattice, metal phase, electron density, and the morphology of the surface catalyst. Therefore, the aim of this research studied was to study the influence of the transition metal type on the metal phase, electron density, and the morphology of the TM/HZSM5 catalyst. TM/HZSM-5 catalyst was prepared by the impregnation method at a fixed metal (TM) nitrate concentration (0.025 M) followed by the catalyst activation including calcination and reduction. The properties of TM/HZSM5 catalyst were determined by studying its character based on the amount of metal carried using XRF, metal phase and electron density using XRD, functional group using FTIR, and catalyst morphology using SEM-EDX. The results showed that TM could be embedded in the HZSM-5. The similarity of the diffraction pattern between the HZSM-5 and the TM/HZSM-5 catalyst proves that the addition of TM did not damage the structure of the HZSM-5. Electron mapping based on the Fourier plot showed that the impregnation of TM on the HZSM-5 caused to increase the electron dispersion. Functional group analysis did not show a wavenumber shift in the tetrahedral (T-O-T) absorption band of HZSM-5 and also did not cause new functional groups. Meanwhile, the morphology of the surface catalyst becomes heterogeneous after metal loaded.