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Heterogeneous Catalysis

Heterogeneous Catalysis

Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...

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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Related Experiment Video

Updated: May 12, 2026

Millifluidics for Chemical Synthesis and Time-resolved Mechanistic Studies

Millifluidics for Chemical Synthesis and Time-resolved Mechanistic Studies

Published on: November 27, 2013

Nanomaterial Integration at Liquid-Liquid Interfaces for Green Catalysis.

Bokgi Seo¹, Jaewon Shin¹, Minkyoung Jang¹

¹School of Chemical Engineering, Sungkyunkwan University, Suwon, Republic of Korea.

Advanced Materials (Deerfield Beach, Fla.)

|May 11, 2026

Summary

This summary is machine-generated.

Functional nanomaterials at liquid-liquid interfaces improve catalysis by stabilizing emulsions and acting as catalytic sites. This approach enhances reaction rates, simplifies catalyst recovery, and supports sustainable chemical processes.

Keywords:

Pickering emulsions biphasic reactions emulsion microreactors interfacial assembly recoverable catalysts

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Area of Science:

Materials Science
Chemical Engineering
Catalysis

Background:

Conventional biphasic catalysis faces challenges in mass transfer and catalyst recovery.
Nanomaterials assembled at liquid-liquid interfaces offer a novel solution.
Engineered colloidal particles act as both emulsion stabilizers and catalytic sites.

Purpose of the Study:

To review recent advancements in interfacially active nanocatalysts.
To analyze structure-performance relationships for catalytic efficiency and emulsion stability.
To assess industrial implementation challenges and prospects for sustainable chemical processes.

Main Methods:

Design and synthesis of interfacially active nanocatalysts.
Surface engineering of colloidal particles.
Analysis of catalytic performance and emulsion stability.
Evaluation of scalability and economic viability.

Main Results:

High interfacial area-to-volume ratios achieved.
Improved reaction kinetics and efficient phase separation observed.
Enhanced catalyst recyclability demonstrated.
Potential for milder reaction conditions, reducing energy consumption and waste.

Conclusions:

Pickering emulsion-based microreactors show promise for sustainable chemistry.
This approach aligns with green chemistry principles and circular economy frameworks.
Further development is needed to address scalability and economic viability for industrial implementation.