Original articleOne-pot hydrothermal synthesis of reduced graphene oxide/zinc ferrite nanohybrids and its catalytic activity on the thermal decomposition of ammonium perchlorate

Add time:09/06/2019    Source:sciencedirect.com

Reduced graphene oxide/Zinc ferrite (rGO/ZnFe2O4) nanohybrids are successfully decorated on the surface of the rGO sheets through a simple, one-step hydrothermal method. ZnFe2O4 nanoparticles (NPs) are homogeneously anchored on the rGO sheets. The rGO/ZnFe2O4 hybrids are characterized by XRD, FT-IR, XPS, TEM, Raman, BET. The rGO/ZnFe2O4 hybrids demonstrate amazing catalytic activity on thermal decomposition of ammonium perchlorate (AP), which is better than that of bare ZnFe2O4 NPs. TG-DTA results indicate that the ZnFe2O4 NPs in the hybrids with increasing ratio (1%, 3%, 5%) could decrease the second decomposition temperature of AP by 42.7 °C, 55.0 °C, 68.1 °C, respectively, and reduce the apparent activation energy of AP from 160.2 kJ mol−1 to 103.8 kJ mol−1. This enhanced catalytic performance is mainly attributed to the synergistic effect of ZnFe2O4 NPs and rGO.

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