Conspectus Since the discovery of synthetic zeolites in the 1940s and their implementation
in major industrial processes involving adsorption, catalytic conversion, and ion exchange …

Many metal–organic frameworks (MOFs) incorporate nodes that are small metal oxide
clusters. Some of these MOFs are stable at high temperatures, offering good prospects as …

In this work, nitrogen-doped graphene quantum dots (N-GQDs) were synthesized by an
efficient one-step hydrothermal using hydrated citric acid and urea as the carbon and …

Keggin‐type polyaluminum cations belong to a unique class of compounds with their large
positive charge, hydroxo bridges, and divergent isomerization/oligomerization. Previous …

Aluminum hydrolysis chemistry is an important part of modern society because of the
dominance of Al (III) as a highly effective antiperspirant active. However, the century-old …

In highly alkaline “water-in-salt” Na2O/Al2O3/H2O solutions where the monomeric Al (OH) 4–
anion dominates, isolation of transitional species that seed crystallization of sodium …

Novel crystalline transformation of Al polycation sulfates from tetrahedral to block shape was
observed spontaneously in aqueous solution. Theoretical calculations revealed that the …

We present a way of stabilizing cationic partially hydrolyzed aluminum clusters in a non-
acidic environment, through Ca2+ and L-Arginine doping. The Keggin Al13-mer (ε-AlO4Al12 …

A sharp signal at 72 ppm was recently observed in 27 Al-NMR spectra during the
isomerization of Keggin-Al 13 ions in the presence of calcium and glycine [1]. It has been …

Keggin-type aluminum-oxo polycations are effective coagulating agents for wastewater
treatment. Previous work demonstrated that heteroatom substitution in Keggin-type ε-Al13 …