Cerium oxide based active catalyst for hydroxylammonium nitrate (HAN) fueled monopropellant thrusters.

ABSTRACT: Hydroxylammonium nitrate (HAN) is an energetic ionic liquid which is fast emerging as a promising environmentally friendly, high performing monopropellant for space propulsion application. The high performance due to the higher adiabatic temperature for HAN based compositions also poses challenges as high temperature tolerant catalysts have to be developed for its decomposition. A novel cobalt doped cerium oxide based catalyst has been prepared by the co-precipitation route and characterized by SEM/EDS, XRD, and XPS. The effectiveness of the catalyst in decomposing HAN has been tested using thermo-analytical techniques. An evolved gas analysis (EGA) to examine decomposition products and the possible reaction mechanism was also performed using the hyphenated DTA-TG-FTIR technique. Formation

SUBMITTER: Agnihotri R 

PROVIDER: S-EPMC9081081 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature