Catalytic decomposition of low-strength hydrogen peroxide for stable, low-flow, medical-grade oxygen generation

Funding Sponsor

Information Technology Industry Development Agency

Author's Department

Mechanical Engineering Department

Second Author's Department

Mechanical Engineering Department

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https://doi.org/10.1016/j.ceja.2025.100955

All Authors

Ahmed Hassanein Omar Abdelaziz

Document Type

Research Article

Publication Title

Chemical Engineering Journal Advances

Publication Date

11-1-2025

doi

10.1016/j.ceja.2025.100955

Abstract

Low-cost, portable sources of medical-grade oxygen (O₂) are urgently needed in home and field care, yet most current technologies are bulky, energy-intensive, or deliver flows far above the 3–15 mL h⁻¹ required for chronic wound therapy. This study builds upon earlier catalytic hydrogen peroxide (H₂O₂) decomposition studies, adding systematic measurements of O₂ purity and monitoring the decomposition continuously until completion. A 3 × 3 full-factorial experiment using three H₂O₂ concentrations (1.5, 2.87, and 6 %) and three manganese dioxide (MnO₂) masses (0.1, 0.3, and 0.5 grams) was executed. Stable O₂ generation was achieved at 1.5 % H₂O₂, delivering average flow rates of 68–134 mL h⁻¹ with high O₂ purity (≥95.6 %) and minimal temperature rise (<4 °C). These findings demonstrate the viability of catalytic decomposition of H₂O₂ using MnO₂ as a practical method for generating stable, low-flow, medical-grade O₂, with opportunities for further optimization in device integration.

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