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Synthesis and Catalytic Performance of Aluminium‐containing Mesoporous, Spherical Silica Particles
Author(s) -
Weissenberger Tobias,
Machoke Albert G. F.,
Kolle Joel M.,
Avadhut Yamini S.,
Hartmann Martin,
Schwieger Wilhelm
Publication year - 2021
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.202000183
Subject(s) - beckmann rearrangement , aluminium , materials science , chemical engineering , cyclohexanone oxime , mesoporous silica , mesoporous material , yield (engineering) , catalysis , particle (ecology) , economies of agglomeration , silicon , caprolactam , polyvinyl alcohol , phase (matter) , particle size , cyclohexanone , organic chemistry , chemistry , composite material , polymer chemistry , metallurgy , oceanography , engineering , geology
A one‐pot synthesis of aluminium‐containing mesoporous silica particles (Al‐MSPs) utilizing polyvinyl alcohol (PVA) as steric stabilization agent is reported. PVA prevents particle agglomeration even when the ionic aluminium source is present in the synthesis mixture. Silicon and aluminium sources were utilised completely, resulting in high yield and easy adjustment of the Si/Al ratio. The Al‐MSPs showed a spherical morphology, high surface area and were active for the liquid‐phase Beckmann rearrangement of cyclohexanone to caprolactam.