RESUMEN
In this work, the smashing effect of explosives innovatively led to the preparation of nanoparticles. The energetic material 3,5-dinitrobenzoic acid (DNBA) was introduced as a ligand to coordinate with silver ions and connect graphene sheets via electrostatic attraction in the sol-gel process. Owing to the thermolysis of DNBA, the pore-formation of graphene sheets, thermal reduction of Ag+ and achievement of monodisperse Ag nanoparticles were realized simultaneously. The morphology and composition of the nanocomposites were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. Then, the nanocomposite was used to construct a hydrogen peroxide (H2O2) sensor, which displayed excellent catalytic performance over a wide linear concentration range of 4 × 10-5 to 4 × 10-3 mM with a corresponding sensitivity of 72 µA mM-1 cm-2 and detection limit of 101.25 nM with a signal-to-noise ratio of 3.
