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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.

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...

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Related Experiment Video

Updated: Aug 19, 2025

Preparation of Silver-Palladium Alloyed Nanoparticles for Plasmonic Catalysis under Visible-Light Illumination

Preparation of Silver-Palladium Alloyed Nanoparticles for Plasmonic Catalysis under Visible-Light Illumination

Published on: August 18, 2020

A high-throughput catalyst synthesis system for Ag-based catalysts.

Zhuoran Deng¹, Liqiang Zhao², Daojian Cheng¹

¹State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China.

The Review of Scientific Instruments

|December 3, 2022

Summary

This summary is machine-generated.

A new automated system enables high-throughput synthesis of silver-based catalysts, optimizing production pathways with ant colony algorithms. This advancement accelerates catalyst development for practical applications.

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Last Updated: Aug 19, 2025

Preparation of Silver-Palladium Alloyed Nanoparticles for Plasmonic Catalysis under Visible-Light Illumination

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Published on: August 18, 2020

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Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation

Published on: July 18, 2017

Area of Science:

Materials Science
Chemical Engineering
Catalysis

Background:

Silver-based catalysts offer cost-effectiveness and high activity for reactions like p-nitrophenol reduction.
Current manual synthesis methods for catalysts can be time-consuming and limit exploration.
Automated systems are crucial for accelerating experimental processes in catalyst development.

Purpose of the Study:

To develop an automated, high-throughput system for synthesizing silver-based catalysts.
To utilize software with optimization algorithms for efficient catalyst synthesis path planning.
To validate the system's capability for gram-level synthesis and exploratory experiments.

Main Methods:

Development of a high-throughput synthesis system based on a facile impregnation method.
Implementation of dedicated software incorporating the ant colony algorithm for synthesis path optimization.
Automated batch synthesis of silver-based catalysts controlled by software parameters.

Main Results:

Characterization results confirmed the similarity between catalysts synthesized via the high-throughput system and manual methods.
The system demonstrated capability for gram-level high-throughput synthesis of silver-based catalysts.
Successful synthesis of platinum-silver (Pt-Ag) bimetallic catalysts showcased the system's utility for exploratory research.

Conclusions:

The developed high-throughput system significantly accelerates the synthesis of silver-based catalysts.
This automated approach is extendable to the preparation of other catalyst systems and facilitates high-throughput characterization.
The system represents a significant advancement for industrial catalyst development, enabling rapid exploration and optimization.