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Catalysis

Catalysis

The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.

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Updated: Sep 17, 2025

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions

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Surface-Active Catalysts for Interfacial Gas-Liquid-Solid Reactions.

Kang Wang¹, Badri Vishal¹, Marc Pera-Titus¹

¹Cardiff Catalysis Institute, Cardiff University, Cardiff CF10 3AT, United Kingdom.

Accounts of Materials Research

|July 4, 2025

Summary

This summary is machine-generated.

Particle-stabilized foams using surface-active catalytic particles dramatically accelerate multiphase reactions by enhancing gas-liquid contact. These engineered particles offer stable, reusable catalytic systems for industrial chemical processes.

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Last Updated: Sep 17, 2025

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions

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Published on: June 16, 2014

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Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry

Published on: October 18, 2019

Area of Science:

Chemical Engineering
Materials Science
Catalysis

Background:

Multiphase reactions (gas-liquid-solid) are crucial in chemical industry but limited by poor gas solubility and mass transfer.
Conventional methods use high pressure, temperature, or cosolvents to enhance reaction rates, often inefficiently.
Surfactant-stabilized foams are used, but face issues like coalescence and limited reusability.

Purpose of the Study:

To present a taxonomy of microstructured gas-liquid-(solid) interfaces for gas-liquid-solid (G-L-S) microreactors.
To critically appraise surface-active catalytic particles for engineering particle-stabilized foams.
To elucidate the design principles for advanced G-L-S microreactors.

Main Methods:

Classification of microstructured G-L-(S) interfaces including catalytic membrane contactors, microdroplets, and particle-stabilized foams.
Analysis of particle adsorption thermodynamics and dynamics at the gas-liquid interface.
Review of synthesis strategies for surface-active catalytic particles and their characterization.

Main Results:

Particle-stabilized foams using surface-active catalytic particles significantly enhance G-L-S reaction rates.
These particles provide stability, prevent coalescence, and are reusable, unlike conventional surfactants.
Demonstrated applications in catalytic oxidation, hydrogenation, and tandem reactions using tailored particles.

Conclusions:

Surface-active catalytic particles are effective for accelerating multiphase reactions in microreactors.
Tailor-designed particles offer improved foam stability, catalytic efficiency, and reusability.
Future development of data-driven computational tools for *in silico* particle design is recommended.