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Synthesis of Amorphous Hierarchical Mesoporous ZnAlPO4 and its Catalytic Applications for Benzene to Aniline Reaction


Affiliations
1 Faculty of Chemical Sciences, Institute of Natural Sciences, Shri Ramswaroop Memorial University, Barabanki, 222 503, U.P, India
 

This paper reports a distinctive property of hierarchical mesoporous ZnAlPO4 for benzene to aniline reaction, with 99% selectivity using aqueous ammonia as amine source in presence of hydrogen peroxide at mild reaction conditions (70℃ and atmospheric pressure). The catalyst is synthesized by a simple, solvent-free mixing method, which significantly improves properties such as acidity and porosity of the material is gained by increasing the temperature of the physical mixture from room temperature (25ºC) to 100ºC. Detailed characterization analysis by FT-IR, SEM, TEM, XRD, TPD, XPS, and N2 adsorption–desorption studies of the material helped in understanding the direct amination activity of the material.

Keywords

Aluminophosphates, Amination, Aqueous ammonia, Molecular sieves, Zeolite materials.
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  • Synthesis of Amorphous Hierarchical Mesoporous ZnAlPO4 and its Catalytic Applications for Benzene to Aniline Reaction

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Authors

Sreenivasulu Peta
Faculty of Chemical Sciences, Institute of Natural Sciences, Shri Ramswaroop Memorial University, Barabanki, 222 503, U.P, India
Sadhana Singh
Faculty of Chemical Sciences, Institute of Natural Sciences, Shri Ramswaroop Memorial University, Barabanki, 222 503, U.P, India

Abstract


This paper reports a distinctive property of hierarchical mesoporous ZnAlPO4 for benzene to aniline reaction, with 99% selectivity using aqueous ammonia as amine source in presence of hydrogen peroxide at mild reaction conditions (70℃ and atmospheric pressure). The catalyst is synthesized by a simple, solvent-free mixing method, which significantly improves properties such as acidity and porosity of the material is gained by increasing the temperature of the physical mixture from room temperature (25ºC) to 100ºC. Detailed characterization analysis by FT-IR, SEM, TEM, XRD, TPD, XPS, and N2 adsorption–desorption studies of the material helped in understanding the direct amination activity of the material.

Keywords


Aluminophosphates, Amination, Aqueous ammonia, Molecular sieves, Zeolite materials.

References