Influence of solvent structure and hydrogen bonding on catalysis at solid–liquid interfaces
Solvent molecules interact with reactive species and alter the rates and selectivities of
catalytic reactions by orders of magnitude. Specifically, solvent molecules can modify the …
catalytic reactions by orders of magnitude. Specifically, solvent molecules can modify the …
Zeolites: a theoretical and Practical Approach with uses in (Bio) Chemical processes
AA Vasconcelos, T Len, AN de Oliveira, AAF Costa… - Applied Sciences, 2023 - mdpi.com
This review provides a state-of-the-art summary of distributed zeolite technology, as well as
identifying strategies to further promote the absorption of these materials in various areas of …
identifying strategies to further promote the absorption of these materials in various areas of …
Effect of Pd Coordination and Isolation on the Catalytic Reduction of O2 to H2O2 over PdAu Bimetallic Nanoparticles
The direct synthesis of hydrogen peroxide (H2+ O2→ H2O2) may enable low-cost H2O2
production and reduce environmental impacts of chemical oxidations. Here, we synthesize a …
production and reduce environmental impacts of chemical oxidations. Here, we synthesize a …
The shape of water in zeolites and its impact on epoxidation catalysis
Solvent structures that surround active sites reorganize during catalysis and influence the
stability of surface intermediates. Within zeolite pores, H2O molecules form hydrogen …
stability of surface intermediates. Within zeolite pores, H2O molecules form hydrogen …
Effects of Solvent–Pore Interaction on Rates and Barriers for Vapor Phase Alkene Epoxidation with Gaseous H2O2 in Ti-BEA Catalysts
Liquid-like fluids condense spontaneously within micropores of titanosilicates and
preferentially stabilize transition states for alkene epoxidations. Consequently, turnover rates …
preferentially stabilize transition states for alkene epoxidations. Consequently, turnover rates …
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 …
Transition state stabilization depends on solvent identity, pore size, and hydrophilicity for epoxidations in zeolites
Ti-silicates activate H 2 O 2 to form Ti-hydroperoxo and Ti-peroxo intermediates that can
react with alkenes to form epoxide products. Comparisons of kinetics for 1-octene …
react with alkenes to form epoxide products. Comparisons of kinetics for 1-octene …
Catalytic consequences of oxidant, alkene, and pore structures on alkene epoxidations within titanium silicates
Ti atoms incorporated into the framework of zeolite* BEA (Ti-BEA) or grafted onto SBA-15 (Ti-
SBA-15) catalyze alkene epoxidation with hydrogen peroxide (H2O2), t-butyl hydrogen …
SBA-15) catalyze alkene epoxidation with hydrogen peroxide (H2O2), t-butyl hydrogen …
Engineering intraporous solvent environments: effects of aqueous-organic solvent mixtures on competition between zeolite-catalyzed epoxidation and H 2 O 2 …
Solvent molecules alter the free energies of liquid phase species and adsorbed
intermediates during catalytic reactions, thereby impacting rates and selectivities. Here, we …
intermediates during catalytic reactions, thereby impacting rates and selectivities. Here, we …
Opportunities in catalysis over metal-zeotypes enabled by descriptions of active centers beyond their binding site
Active centers in porous solid catalysts are multifaceted in structure, comprised of primary
sites that bind intermediates, secondary environments that confine intermediates and …
sites that bind intermediates, secondary environments that confine intermediates and …