The broad challenges of energy and environment have become a main focus of research
efforts to develop more active and selective catalytic systems for key chemical …

Polyoxoniobates (PONbs), a remarkable category of metal-oxo cluster materials, have
attracted significant attention, owing to their structural diversity and high nucleophilicity …

Hydrophobic voids within titanium silicates have long been considered necessary to achieve
high rates and selectivities for alkene epoxidations with H2O2. The catalytic consequences …

Ti, Nb, and Ta atoms substituted into the framework of zeolite* BEA (M-BEA) or grafted onto
mesoporous silica (M-SiO2) irreversibly activate hydrogen peroxide (H2O2) to form pools of …

Rates and selectivities for alkene epoxidations depend sensitively on the identity of the
active metal center for both heterogeneous and homogeneous catalysts. While group 6 …

Zr-monosubstituted Lindqvist-type polyoxometalates (Zr-POMs),(Bu4N) 2 [W5O18Zr (H2O)
3](1) and (Bu4N) 6 [{W5O18Zr (μ-OH)} 2](2), have been employed as molecular models to …

This study is devoted to the evaluation of the influence of phosphate dopants on the
reactivity of Nb 2 O 5-based nanomaterials in the combined catalytic activation of H 2 O 2 …

Nb-monosubstituted Lindqvist-type polyoxometalates (POM),(Bu4N) 4 [(NbW5O18) 2O](1)
and (Bu4N) 3 [Nb (O) W5O18](2), catalyze epoxidation of alkenes with hydrogen peroxide …

Zr-based metal–organic frameworks (Zr-MOF) UiO-66 and UiO-67 catalyze thioether
oxidation in nonprotic solvents with unprecedentedly high selectivity toward corresponding …

The oxidation of hydrocarbons is of great significance for the chemical industry as it provides
access to valuable functionalized chemicals. The oxidation of cyclohexene has raised much …