Tīmeklis2024. gada 1. nov. · Fe-ZSM-5-In possessed enhanced acid amount and better distribution of framework Fe³⁺ species than Fe/ZSM-5-Im. The results of catalytic performance evaluation show that the propylene yield is... Tīmeklis2024. gada 21. marts · Structural and functional modifications in Fe-incorporated ZSM-5 and Silica under the effect of UV-irradiation Conference: American Chemical Society Spring 2024 National Meeting & Expo...
Experimental and DFT analysis of the acid and reduction …
TīmeklisA study of Fe-ZSM-5 catalysts with variable amounts of isolated, oligomeric and heavily aggregated Fe3+ oxo sites (as evidenced by UV-Vis and EPR spectroscopic data) … ZSM-5 is composed of several pentasil units linked together by oxygen bridges to form pentasil chains. A pentasil unit consists of eight five-membered rings. In these rings, the vertices are Al or Si and an O is assumed to be bonded between the vertices. The pentasil chains are interconnected by oxygen … Skatīt vairāk ZSM-5, Zeolite Socony Mobil–5 (framework type MFI from ZSM-5 (five)), is an aluminosilicate zeolite belonging to the pentasil family of zeolites. Its chemical formula is NanAlnSi96–nO192·16H2O (0<27). … Skatīt vairāk ZSM-5 is a synthetic zeolite, closely related to ZSM-11. There are many ways to synthesize ZSM-5; a common method is as follows: Skatīt vairāk • ZEOMICS – Zeolite Pore Characterization of MFI (ZSM-5) Skatīt vairāk Pentasil-zeolites are defined by their structure type, and more specifically by their X-ray diffraction patterns. ZSM -5 is the trade name of a pentasil-zeolite. As early as 1967, Argauer and Landolt worked out parameters for the synthesis of pentasilzeolites, … Skatīt vairāk ZSM-5 has a high silicon to aluminum ratio. Whenever an Al cation replaces a Si cation, an additional positive charge is required to keep the material charge-neutral. With proton (H ) as the cation, the material becomes very acidic. Thus the acidity is … Skatīt vairāk christopher rehm hyde park ma
The oxidative degradation of phenol
Tīmeklis2024. gada 6. marts · Production of granular Fe-ZSM-5 was further explored, and the fixed bed adsorption experiment was carried out. The adsorption capacity of granular Fe-ZSM-5 to PX can reach 45.64 mg·g –1 under better process conditions, which is superior to ZSM-5 zeolites and activated carbon. TīmeklisThe effect of acidic properties and mesoporosity created by desilication on ZSM-5 zeolites was investigated to evaluate changes in product selectivity during Fischer–Tropsch synthesis (FTS) over Fe-based bifunctional catalysts. The reaction was studied at 300 °C, 10 bar, and H2:CO = 2:1, using a physical mixture of the iron … Tīmeklis2024. gada 18. maijs · Zn–Fe/ZSM-5 had slight reduction around 390 and 560 °C [ 24, 33, 34 ]. It was suggested that a strong interaction between the metals led to shift in … get width of div angular