The results of decomposition tests of 30% H2O2 by means of a number of catalytic beds in a suitable experimental set-up are presented. The catalyst pellets have been prepared using the impregnation techniques already employed by the authors for alumina-based carriers. Platinum has been implanted on a reticular vitreous carbon (RVC) foam, on silicon carbide foam and on a CELCOR cordierite monolith. Scanning electron microscopy analyses (SEM-EDX) have been carried out on the samples to characterize the catalyst surface and to measure the load of deposed platinum. The remarkable potential of the proposed metallic cation deposition technique has been widely demonstrated on the cordierite catalyst, despite the relatively low surface area of the carrier. Conversely, the impregnation technique with the VRC (Vitreous Reticular Carbon) and SiC firebrick did not prove be equally effective.
Testing of Innovative Catalyst Beds for Hydrogen Peroxide Monopropellant Thruster
D'AGOSTINO, LUCA;
2009-01-01
Abstract
The results of decomposition tests of 30% H2O2 by means of a number of catalytic beds in a suitable experimental set-up are presented. The catalyst pellets have been prepared using the impregnation techniques already employed by the authors for alumina-based carriers. Platinum has been implanted on a reticular vitreous carbon (RVC) foam, on silicon carbide foam and on a CELCOR cordierite monolith. Scanning electron microscopy analyses (SEM-EDX) have been carried out on the samples to characterize the catalyst surface and to measure the load of deposed platinum. The remarkable potential of the proposed metallic cation deposition technique has been widely demonstrated on the cordierite catalyst, despite the relatively low surface area of the carrier. Conversely, the impregnation technique with the VRC (Vitreous Reticular Carbon) and SiC firebrick did not prove be equally effective.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
