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A Novel Self-Assembling Al-based Composite Powder with High Hydrogen Generation Efficiency.

Cuiping Wang1,2, Yuheng Liu1, Hongxin Liu1

  • 1Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, P. R. China.

Scientific Reports
|December 1, 2015
PubMed
Summary
This summary is machine-generated.

A novel aluminum-bismuth-tin powder generates hydrogen efficiently from water. This self-assembling powder shows high hydrogen conversion yields for potential use in fuel cells.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Chemical Engineering

Background:

  • Hydrogen generation is crucial for clean energy technologies.
  • Developing efficient and cost-effective hydrogen production methods is a key research area.
  • Aluminum-based materials are explored for their potential in hydrolysis-based hydrogen generation.

Purpose of the Study:

  • To prepare and characterize a novel self-assembling hydrogen generation powder.
  • To investigate the morphological and hydrolysis properties of the Al-Bi-Sn powder.
  • To evaluate the potential of the generated hydrogen for proton exchange membrane fuel cells.

Main Methods:

  • Gas atomization method for powder preparation.
  • Morphological analysis using microscopy techniques.
  • Hydrolysis property testing with distilled water at various temperatures.

Main Results:

  • A novel self-assembling powder (80Al-10Bi-10Sn wt.%) was successfully prepared.
  • The powder exhibited unique core/shell microstructures with specific phase distributions.
  • High hydrogen conversion yield (91.30% in 16 minutes at 30°C) was achieved.
  • The powder demonstrated violent reaction with water at 0°C and good oxidation resistance.

Conclusions:

  • The developed Al-Bi-Sn powder is a promising material for efficient hydrogen generation.
  • The unique microstructure contributes to its hydrolysis performance.
  • The generated hydrogen is suitable for direct use in proton exchange membrane fuel cells.