Finding the compromise between Brønsted acidity and mesoporosity in hierarchical ZSM‐5 zeolites
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DOI: 10.1002/cctc.202300167
Abstract: Mesoporous ZSM‐5 catalysts were prepared from a commercial ZSM‐5 (Si/Al=15), using a 2‐step micelle‐templating procedure. By varying the NaOH/Si synthesis ratio in the range of 0.3‐0.7, ZSM‐5 catalysts with different textural and acidic properties were… read more here.
Keywords: compromise; nsted acidity; compromise nsted; zsm ... See more keywords
The Brønsted acidity of three- and two-dimensional zeolites
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DOI: 10.1016/j.micromeso.2019.03.033
Abstract: Abstract The zeolite activity in processes driven by Bronsted acid sites is determined by the distribution of the protons in the zeolite and strength of their interaction with the framework. This study aims to assess… read more here.
Keywords: form; acidity; nsted acidity; three two ... See more keywords
Metal Node Control of Brønsted Acidity in Heterobimetallic Titanium–Organic Frameworks
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DOI: 10.1021/jacs.2c12718
Abstract: Compared to indirect framework modification, synthetic control of cluster composition can be used to gain direct access to catalytic activities exclusive of specific metal combinations. We demonstrate this concept by testing the aminolysis of epoxides… read more here.
Keywords: metal node; control; node control; nsted acidity ... See more keywords
Theoretical Study of Zirconium Isomorphous Substitution into Zeolite Frameworks
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DOI: 10.3390/molecules24244466
Abstract: Systematic periodic density functional theory computations including dispersion correction (DFT-D) were carried out to determine the preferred location site of Zr atoms in sodalite (SOD) and CHA-type topology frameworks, including alumino-phosphate-34 (AlPO-34) and silico-alumino-phosphate-34 (SAPO-34),… read more here.
Keywords: substituted forms; nsted acidity; site; acidity ... See more keywords