A5003333554- Zeolite Catalysis and Synthesis
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Catalytic Processes in Materials Science
- Magnetic Properties and Synthesis of Ferrites
- Multiferroics and related materials
- Metal-Organic Frameworks: Synthesis and Applications
- Mesoporous Materials and Catalysis
- Electromagnetic wave absorption materials
- Catalysis and Hydrodesulfurization Studies
- Catalysts for Methane Reforming
- Advanced Photocatalysis Techniques
- Hydrogels: synthesis, properties, applications
- Advanced Drug Delivery Systems
- Chemical Synthesis and Characterization
- Gas Sensing Nanomaterials and Sensors
- Catalysis for Biomass Conversion
- Electrochemical Analysis and Applications
- Catalysis and Oxidation Reactions
- biodegradable polymer synthesis and properties
ETH Zurich
2020-2024
Bahauddin Zakariya University
2018-2022
Bioengineering (Switzerland)
2020-2021
Institute for Biomedical Engineering
2020-2021
Aluminum ion exchange was employed to introduce Lewis acidity into zeolites BEA, mordenite (MOR), MFI, and FAU (Si/Al = 11–15) thereby evaluate what factors affect the generation activity of extra-framework acid sites (LAS) in zeolites. After treatment, all retain their framework structure porosity characteristics, as evidenced by diffraction nitrogen physisorption. The increase total aluminum content BEA appreciable, whereas MOR MFI showed very little uptake aluminum. quantitatively follows...
Lewis acidity was introduced into zeolite Y (Si/Al = 30) by a facile ion-exchange of aluminum cations followed calcination. X-ray diffraction and nitrogen physisorption suggest that the zeolitic framework is retained after these treatments. With an increase in total extra-framework modified zeolites, there pronounced number acid sites, as illustrated FTIR spectroscopy adsorbed pyridine carbon monoxide, whereas no significant change Brønsted sites observed. Likewise, catalytic activity, i.e....
Unveiling catalytic mechanisms at a molecular level aids rational catalyst design and selectivity control for process optimization. In this study, we find that the Brønsted acid site density of zeolite efficiently controls guaiacol pyrolysis mechanism. Guaiacol demethylation to catechol initiates reaction, as evidenced by detected methyl radicals. The mechanism branches form either fulvenone (c-C5H4 = C O), reactive ketene intermediate, dehydration, or phenol acid-catalyzed dehydroxylation....
Abstract A series Manganese and Gadolinium doped Zinc-Strontium hexaferrites, Sr 2 Zn − x Mn Fe 12− 12−y Gd y O 22 (x = 0.0–1.0, 0.0-0.1), was fabricated by chemical co-precipitation route. XRD analysis confirmed the single magnetoplumbite phase formed in hexaferrites with average crystallite size range 27–38 nm. Surface morphology distribution also explored using Scanning electron microscopy (SEM). The dielectric parameters i.e. constant, loss dielectic tan were measured at ambient...