Reactivity of surface species in heterogeneous catalysts probed by in situ X-ray absorption techniques
Starting from the late seventies, the progressively increased availability of synchrotron light
sources allowed the execution of experiments requiring a high X-ray flux in a continuous …
sources allowed the execution of experiments requiring a high X-ray flux in a continuous …
Porous aluminophosphates: from molecular sieves to designed acid catalysts
HO Pastore, S Coluccia, L Marchese - Annu. Rev. Mater. Res., 2005 - annualreviews.org
▪ Abstract This review covers the synthesis, characterization, and physico-chemical
properties of microporous and mesoporous aluminophosphates and …
properties of microporous and mesoporous aluminophosphates and …
Consequences of confinement for alkene epoxidation with hydrogen peroxide on highly dispersed group 4 and 5 metal oxide catalysts
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 …
mesoporous silica (M-SiO2) irreversibly activate hydrogen peroxide (H2O2) to form pools of …
Periodic trends in olefin epoxidation over group IV and V framework-substituted zeolite catalysts: a kinetic and spectroscopic study
Group IV and V framework-substituted zeolites have been used for olefin epoxidation
reactions for decades, yet the underlying properties that determine the selectivities and …
reactions for decades, yet the underlying properties that determine the selectivities and …
Alkene Epoxidations with H2O2 over Groups 4–6 Metal-Substituted BEA Zeolites: Reactive Intermediates, Reaction Pathways, and Linear Free-Energy …
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 …
active metal center for both heterogeneous and homogeneous catalysts. While group 6 …
Selective oxidation of furfural to succinic acid over lewis acidic Sn-beta
Selective production of succinic acid from furfural with H2O2 over Sn-Beta, a pure Lewis
acid catalyst, is reported. Under optimized reaction conditions, 53% yield of succinic acid …
acid catalyst, is reported. Under optimized reaction conditions, 53% yield of succinic acid …
Evidence of defect-promoted reactivity for epoxidation of propylene in titanosilicate (TS-1) catalysts: a DFT study
DH Wells Jr, WN Delgass Jr… - Journal of the American …, 2004 - ACS Publications
Our density functional theory study of hydroperoxy (OOH) intermediates on various model
titanosilicalite (TS-1) Ti centers explores how microstructural aspects of Ti sites effect …
titanosilicalite (TS-1) Ti centers explores how microstructural aspects of Ti sites effect …
Reactivity of Ti (iv) species hosted in TS-1 towards H 2 O 2–H 2 O solutions investigated by ab initio cluster and periodic approaches combined with experimental …
This work is intended to underline how the most-advanced experimental and theoretical
physical chemistry tools must be used synergistically to understand the reactivity of Ti …
physical chemistry tools must be used synergistically to understand the reactivity of Ti …
Heterogeneous Catalytic Oxidation of As(III) on Nonferrous Metal Oxides in the Presence of H2O2
The oxidation of As (III)(arsenite) to As (V)(arsenate), a critical pretreatment process for total
arsenic removal, is easily achieved using chemical oxidation methods. Hydrogen peroxide …
arsenic removal, is easily achieved using chemical oxidation methods. Hydrogen peroxide …
Transient technique for identification of true reaction intermediates: Hydroperoxide species in propylene epoxidation on gold/titanosilicate catalysts by X-ray …
In situ ultraviolet− visible (UV− vis) diffuse reflectance spectroscopy was used in
combination with in situ Ti K-edge X-ray absorption near-edge structure (XANES) to study …
combination with in situ Ti K-edge X-ray absorption near-edge structure (XANES) to study …