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Updated: Mar 30, 2026

Manganese Oxide Nanoparticle Synthesis by Thermal Decomposition of ManganeseII Acetylacetonate

Manganese Oxide Nanoparticle Synthesis by Thermal Decomposition of ManganeseII Acetylacetonate

Published on: June 18, 2020

Manganese Oxide-Based Chemically Powered Micromotors.

Muhammad Safdar¹, Owies M Wani¹, Janne Jänis¹

¹Department of Chemistry, University of Eastern Finland , FI-80101 Joensuu, Finland.

ACS Applied Materials & Interfaces

|November 10, 2015

Summary

This summary is machine-generated.

Manganese oxide (MnO2) micromotors achieve record speeds up to 900 μm s(-1) in hydrogen peroxide fuel. These fast-moving nanodevices operate efficiently even at low fuel concentrations, showing promise for various applications.

Keywords:

manganese oxide micromotors nanomotors template fabrication

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An Additive Manufacturing Technique for the Facile and Rapid Fabrication of Hydrogel-based Micromachines with Magnetically Responsive Components

An Additive Manufacturing Technique for the Facile and Rapid Fabrication of Hydrogel-based Micromachines with Magnetically Responsive Components

Published on: July 18, 2018

Area of Science:

Nanotechnology
Materials Science
Chemical Engineering

Background:

Chemically powered micromotors are artificial nanodevices.
Bubble formation at the solid-liquid interface drives micromotor movement.
Platinum is commonly used but other materials are being explored.

Purpose of the Study:

To prepare and characterize fast-moving micromotors using manganese oxide (MnO2).
To evaluate the performance of MnO2 micromotors with different geometrical shapes.
To demonstrate efficient micromotor operation at low fuel concentrations.

Main Methods:

Fabrication of MnO2 micromotors in various shapes (tubes, rods, spheres).
Characterization of micromotor speeds in hydrogen peroxide (H2O2) solutions.
Evaluation of performance at different fuel concentrations.

Main Results:

MnO2 micromotors achieved speeds up to ~900 μm s(-1) in 10% H2O2.
These speeds are the highest reported for MnO2-based micromotors.
Efficient bubble propulsion was observed even at very low peroxide concentrations.

Conclusions:

Manganese oxide (MnO2) is a promising material for high-speed micromotor fabrication.
MnO2 micromotors offer efficient performance with low fuel concentrations.
Potential applications exist in biomedical and environmental fields requiring fast nanodevices.