Synthesis of Co Nanoparticles and Their Catalytic Effect on the Decomposition of Ammonium Perchlorate

Effects of Nanosized Metals and Metal Oxides on the Thermal Behaviors of Insensitive High Energetic Compound ICM-102

“…It can be seen that ICM-102 shows a rapid decomposition, followed by a slow one. The shapes of all the decomposition curves consist with S- 29 In fact, nano-Co would be oxidized to nano-Co 3 O 4 , which may decrease the decomposition temperature of AP by 106.3 °C. 30 It is also reported that nano-Fe 2 O 3 and nano-CuO could decrease the decomposition temperature of AP by 107.1 and 107.9 °C, respectively.…”

“…It can be seen from Figure b that nano-Co has the minimum amount of residue rate (about 1.57 wt %). It is reported that nano-Co could decrease the decomposition temperature of AP by 145.01–155.7 °C . In fact, nano-Co would be oxidized to nano-Co 3 O 4 , which may decrease the decomposition temperature of AP by 106.3 °C .…”

Colorimetric detection of heavy metal ions using aminosilane

“…Assuming that the S si is 156 0.2 nm 2 [21], the grafting density of APTES on Co NPs was 157 estimated to be about 4.9 mg/g. If Co NPs have smaller particle size 158 (42 nm and 15.9 m 2 /g) [20], the grafting density might be 159 increased to 292 mg/g. Therefore, the remaining excess of silane, 160 which is used to form metal-amine complex, forms the polymeric The colloidal Co, Cr, and Cu NPs show color changes from green 164 to blue, after the addition of APTES.…”

“…The specific surface area (S) of the bare 154 Co NP (m 2 /g) was calculated by S = 6/rd (r = 8.9 g/cm 3 , 155 d = 250 nm) [20], which is 2.7 m 2 /g. Assuming that the S si is 156 0.2 nm 2 [21], the grafting density of APTES on Co NPs was 157 estimated to be about 4.9 mg/g.…”

Nanoparticulate Copper(II) Oxide Catalyzed Synthesis of Guanidine Derivatives and Their Conversion into Functionalized Iminoguanidines

“…7 There has also been much recent interest in the synthesis and application of transition-metal oxide nanoparticles, because of their large specific surface areas and their high activities in many catalytic processes. 8 Among the various nanoparticulate metal oxides, nanoparticulate copper(II) oxide is an effective catalyst for many reactions. [9][10][11][12] In continuation of our interest in the applications of nanoparticulate copper(II) oxide as a catalyst for organic reactions, we have prepared nanoparticulate copper(II) oxide 13 and have used it as a new, simple, and efficient catalyst for the guanylation of amines with carbodiimides under mild conditions.…”