https://cyberleninka.org/article/n/551703.pdf

Applications of nano-catalyst in new era

Catalytic effects of nano additives on decomposition and combustion of RDX-, HMX-, and AP-based energetic compositions

Highly dispersed copper oxide (CuO) nanoparticles with an average size of 6 nm have been successfully prepared by a novel quick-precipitation method. The as-prepared CuO nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), UV–Visible absorption spectroscopy and BET nitrogen adsorption. The results show that the as-prepared CuO nanoparticles have high dispersion and narrow size distribution. The influence of reaction conditions on morphology of CuO nanocrystals was discussed. Spherical, ellipsoidal and needle-shaped CuO nanocrystals can be obtained simply by varying the reaction temperature and controlling the addition of NaOH.

Highly dispersed CuO nanoparticles prepared by a novel quick-precipitation method

Investigation of the catalytic activity of nano-sized CuO, Co3O4 and CuCo2O4 powders on thermal decomposition of ammonium perchlorate

A review on the use of nanometals as catalysts for the thermal decomposition of ammonium perchlorate

Binary transition metal ferrite (BTMF) nanocrystals of formula MFe2O4 (M=Cu, Co, Ni) were prepared by the coprecipitation method and characterized by X-ray diffraction (XRD). XRD patterns gave average particle size by using Scherrer's equation for CuFe2O4 (CuF), CoFe2O4 (CoF), and NiFe2O4 (NiF) as 39.9, 27.3, and 43.8 nm, respectively. The catalytic activity measurements on the thermal decomposition of ammonium perchlorate (AP) were carried out by using thermogravimetry (TG), differential thermal analysis (DTA), and ignition delay studies. Isothermal TG data up to a mass loss of 45% have been used to evaluate kinetic parameters by using model fitting as well as isoconversional method. The order of catalytic activity was found to be:

Kinetics of Thermal Decomposition of Ammonium Perchlorate with Nanocrystals of Binary Transition Metal Ferrites

Bimetallic nanoalloys: Preparation, characterization and their catalytic activity☆

Four transition metal nanoparticles (TMNs) of 3d series (Cu, Co, Ni, and Fe) were prepared by hydrazine reduction of metal chloride in ethylene glycol at 60°C and characterized by X-ray diffraction (XRD). The XRD pattern showed average particle sizes for Cu, Ni, Co, and Fe of 16.7, 40.5, 27.4, and 35.0 nm, respectively. The activity of these TMN accelerants on the thermal decomposition of ammonium perchlorate (AP) was investigated using thermogravimetry (TG), differential scanning calorimetry (DSC), and ignition delay studies. Isothermal TG data were used to evaluate the kinetic parameters by model fitting as well as an isoconversional methods. The activation energy for thermal decomposition of AP was found to be 66.8, 68.7, 78.5, and 85.4 kJmol−1, respectively, for Co, Cu, Ni, and Fe, when they were mixed with AP. Hence, the order of activity was found to be Co > Cu > Ni > Fe. The accelerant effect of nanoparticles of TMNs was found to be better than their respective nano-oxides.

Nanoparticles of Transition Metals as Accelerants in the Thermal Decomposition of Ammonium Perchlorate, Part 62

Nanocrystals of four transition metal oxides (TMOs) were prepared by a novel quick precipitation method and characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). From the XRD patterns, average particle sizes for CuO, NiO, Co 2 O 3 , MnO 2 are calculated to be 15 nm, 4 nm, 13 nm, 40 nm, respectively. The TEM study revealed that the majority of CuO particles are of 6–8 nm in size. Catalytic activities of the TMO nanocrystals for thermal decomposition of ammonium perchlorate (AP) were investigated using differential thermal analysis (DTA), thermogravimetric analysis (TGA) and ignition delay measurements. The order of catalytic activity of these oxide nanocrystals on thermal decomposition of AP was found to be: Co 2 O 3 > CuO > NiO > MnO 2 .

Shalini Dubey

Papers

Kinetics of Thermal Decomposition of Ammonium Perchlorate with Nanocrystals of Binary Transition Metal Ferrites

Bimetallic nanoalloys: Preparation, characterization and their catalytic activity☆

Nanoparticles of Transition Metals as Accelerants in the Thermal Decomposition of Ammonium Perchlorate, Part 62

Preparation, Characterization and Catalytic Activity of Transition Metal Oxide Nanocrystals

Effect of mixed ternary transition metal ferrite nanocrystallites on thermal decomposition of ammmonium perchlorate