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Catalytic Decomposition of Hydrogen Peroxide for Application on Micro Propulsion  

An Sung-Yong (한국과학기술원 항공우주공학과)
Lee Jong-Kwang (한국과학기술원 항공우주공학과)
Rang Seong-Min (한국과학기술원 항공우주공학과)
Kwon Se-Jin (한국과학기술원 항공우주공학과)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.9, no.4, 2005 , pp. 1-8 More about this Journal
Abstract
An experimental investigation of a microthruster that uses hydrogen peroxide as a monopropellant is described. The study comprises of preparation method of silver as a catalyst and performance evaluation of a mesoscale reactor. Reduction of silver in $H_2\;at\;500^{\circ}C$ resulted in the best reactivity of all the treatment method tested. A mesoscale reactor was built to find the optimum configuration for full decomposition of propellant. The catalyst bed was made of a glass wafer substrate sputtered with silver and had a length of 20 mm. We measured the conversion rate with varying feed rate of $H_2O_2$ and preheating temperature. With the feed rate of $H_2O_2$, the space time within the reactor varies as well. For the bed length of 20 mm, space time more than 480 s was required for full conversion.
Keywords
Microthruster; Monopropellant; Hydrogen Peroxide; Silver Catalyst; Activation; Reacfor;
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