Lab-Scale Thermal Decomposition of Hydrogen Peroxide as Green Propellant over Low-Cost Catalysts Based on Copper Deposited on Different Supports
The thermal decomposition of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) as a promising green propellant was performed over free-noble metallic-based catalysts deposited on abundant supports. A 30% (<i>w</i>/<i>w</i>) H<sub>2</sub>O<s...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-05-01
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| Series: | Aerospace |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2226-4310/12/5/440 |
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| Summary: | The thermal decomposition of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) as a promising green propellant was performed over free-noble metallic-based catalysts deposited on abundant supports. A 30% (<i>w</i>/<i>w</i>) H<sub>2</sub>O<sub>2</sub> liquid was decomposed over 1 wt.% of copper-based catalysts deposited on three different supports: γ-alumina, graphite and monocrystal clay. In this research work, the catalytic performance of the thermal decomposition of H<sub>2</sub>O<sub>2</sub> was carried out by measuring the differential pressure (ΔP) versus time at initial constant temperatures and, for the first time, by the DTA-TG technique and by the DIP-MS technique at atmospheric pressure. The obtained preliminary results showed that copper deposited on alumina and on graphite are promising catalysts for the decomposition of the H<sub>2</sub>O<sub>2</sub> liquid propellant. Moreover, the natural clay can be valorized on the thermal decomposition of H<sub>2</sub>O<sub>2</sub> due to its high resistivity and high surface area. The N<sub>2</sub>-physisorption technique and scanning electron microscopy technique were used to characterize the effect of the texture properties on the decomposition and to understand the morphological characteristics of the catalyst. |
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| ISSN: | 2226-4310 |