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Related Experiment Video

Updated: Jul 5, 2025

Improving the Combustion Performance of a Hybrid Rocket Engine using a Novel Fuel Grain with a Nested Helical Structure
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Metal-Plastic Hybrid Additive Manufacturing to Realize Small-Scale Self-Propelled Catalytic Engines.

Adhikarige Taniya Kaushalya Perera1, Kewei Song2, Xiangyi Meng2

  • 1School of Mechanical and Aerospace Engineering, Nanyang Technological University, N3.2-01- 20, 65 Nanyang Drive, Singapore 637460, Singapore.

ACS Omega
|January 15, 2024
PubMed
Summary

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Researchers developed a rapid, inexpensive single-step 3D printing method for catalytic microengines. This new technique enables efficient fabrication of microengines for applications like environmental monitoring and drug delivery.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemical Engineering

Background:

  • Catalytic microengines are promising for applications like environmental monitoring and drug delivery.
  • Current fabrication methods (e.g., deposition, electrochemical methods, multi-step 3D printing) are often tedious, time-consuming, and expensive.

Purpose of the Study:

  • To develop a simple, rapid, and inexpensive single-step method for fabricating catalytic microengines.
  • To demonstrate the feasibility and efficiency of the developed fabrication technique.

Main Methods:

  • Utilized digital light processing (DLP) 3D printing with a catalyst resin (Pd(II)).
  • Fabricated microengines in various shapes in a single step.
  • Demonstrated microengine locomotion in hydrogen peroxide (H₂O₂) fuel.

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Related Experiment Videos

Last Updated: Jul 5, 2025

Improving the Combustion Performance of a Hybrid Rocket Engine using a Novel Fuel Grain with a Nested Helical Structure
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Main Results:

  • Successfully fabricated microengines using a cost-effective, integrated molding process.
  • Achieved self-propelled locomotion of microengines in 30% H₂O₂ via catalytic decomposition.
  • Characterized microengine performance based on H₂O₂ concentration, catalyst (Pd), and design parameters.

Conclusions:

  • The developed 3D printing technique offers a simple, rapid, and inexpensive approach for manufacturing high-efficiency microengines.
  • This method is suitable for various applications, including environmental monitoring, remediation, and drug delivery, with potential for customization.