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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

Catalysis influences the rate of chemical reactions by providing an alternative reaction pathway with lower activation energy. A catalyst speeds up a reaction, but it is not consumed during the process. The fundamental principle of catalysis is the ability of a catalyst to alter the reaction mechanism, often introducing a more efficient pathway than the uncatalyzed process.In a catalyzed reaction, the catalyst participates directly in the reaction mechanism. It interacts with reactants to form...

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: Jun 17, 2026

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

Catalyst-functionalized nanomaterials.

Yi Lu¹, Juewen Liu¹

¹Department of Chemistry, University of Illinois at Urbana, Champaign, IL, USA.

Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology

|January 6, 2010

Summary

This summary is machine-generated.

Nanotechnology and biotechnology merge to create advanced biosensors for detecting various analytes. These nanomaterial-based sensors offer significant potential applications in nanomedicine and diagnostics.

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Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering

Published on: June 1, 2016

Area of Science:

Interdisciplinary research at the intersection of nanotechnology and biotechnology.
Development of novel sensing platforms utilizing nanomaterials.

Background:

Biomolecules offer molecular recognition and catalytic properties that can modulate nanomaterial functions.
Existing biosensors face limitations in sensitivity, specificity, and application scope.

Purpose of the Study:

To review the design principles of sensors based on four classes of nanomaterials: metallic, semiconductor, magnetic, and carbon nanotubes.
To highlight the potential applications of these nanomaterial-based sensors in nanomedicine.

Main Methods:

Review of sensor designs incorporating metallic nanoparticles for colorimetric detection.
Summary of quantum dot (QD) based sensors utilizing energy or charge transfer mechanisms.
Discussion of magnetic nanoparticles as contrast agents for magnetic resonance imaging (MRI).
Exploration of carbon nanotube-based sensors for in vivo sensing applications.

Main Results:

Metallic nanoparticles enable colorimetric sensing due to their optical properties.
Quantum dots offer superior fluorescence properties over traditional fluorophores.
Magnetic nanoparticles serve as effective MRI contrast agents.
Carbon nanotubes exhibit near-infrared emission for potential in vivo sensing.

Conclusions:

Nanomaterial-based biosensors represent a significant advancement in analytical detection.
These sensors hold great promise for diverse applications, particularly in nanomedicine.
Further development in nanomaterial design will enhance sensing capabilities and expand applications.