Mechanical and Thermal Sensitivity of Mixtures of Ammonium Nitrate with Combustible Hydrocarbons

An Efficient Nanocatalyst Cobalt Copper Zinc Ferrite for the Thermolysis of Ammonium Nitrate

“…Ammonium nitrate (AN) has Raman active modes in the range 50 cm –1 to 1600 cm –1 in which a lower frequency mode (<200 cm –1 ) was assigned to crystallographic transformation of enantiotropic phases of AN while moderate frequency modes (250 cm –1 to 800 cm –1 ) were assigned to molecular vibrations of orientation disorder of cations and anions of N–O bond of nitrate group (NO 3 – ) and higher frequency modes (<800 cm –1 ) were assigned to heteroionic coupling effect of ammonium ion (NH 4 + ) and nitrate ion (NO 3 – ). The intense peaks observed at ∼480 cm –1 Raman shift correspond to N–O and N–H bending vibrations, while the characteristic peak of AN at ∼1050 cm –1 Raman shift corresponds to NO 3 – symmetric vibration. − It was observed that at room temperature and ambient pressure in the presence of a nanocatalyst ternary spinel ferrite CoCuZnFe 2 O 4 shifted bands as observed due to molecular bonding polarization with ammonium nitrate, which resulted in increasing the characteristic peak intensity of AN. However, the blue shift in AN+CoCuZnFe 2 O 4 observed indicates the size effect of nanoferrite.…”

“…The intense peaks observed at ∼480 cm –1 Raman shift correspond to N–O and N–H bending vibrations, while the characteristic peak of AN at ∼1050 cm –1 Raman shift corresponds to NO 3 – symmetric vibration. 55 − 57 It was observed that at room temperature and ambient pressure in the presence of a nanocatalyst ternary spinel ferrite CoCuZnFe 2 O 4 shifted bands as observed due to molecular bonding polarization with ammonium nitrate, which resulted in increasing the characteristic peak intensity of AN. However, the blue shift in AN+CoCuZnFe 2 O 4 observed indicates the size effect of nanoferrite.…”