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

Alizadeh-Gheshlaghi, Ebrahim; Shaabani, Behrouz; Khodayari, Ali; Azizian‐Kalandaragh, Yashar; Rahimi, Rahmatollah

doi:10.1016/j.powtec.2011.10.045

Cited by 266 publications

(98 citation statements)

References 58 publications

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“…[1][2][3][4][5] Especially, tricobalt tetraoxide (Co 3 O 4 ), a mixed-valence transition metal oxide with spinel crystal structure, is regarded as one of the most promising p-type semiconducting materials for industrial and scienti c applications such as heterogeneous catalysts, [6][7][8][9][10][11][12] solid-state sensors, [13][14][15] magnetic materials, 16,17) and lithium ion rechargeable batteries. [18][19][20][21] Up to date, various types of preparation methods have been developed for the preparation of Co 3 O 4 by thermal decomposition, [6][7][8]20,22,23) chemical spray pyrolysis, 24) spattering, 25) and sol-gel process. [26][27][28] In contrast, liquid-phase synthesis of Co 3 O 4 particles has been of signi cant interests because the liquid phase process has large potentials to obtain highly puri ed and homogenized Co 3 O 4 particles.…”

Section: Introductionmentioning

confidence: 99%

Direct Hydrothermal Synthesis of Size-Controlled Co3O4 Nanocubes under Highly Condensed Conditions

2017

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Cobalt oxide (Co 3 O 4 ) nanocubes with high crystallinity and a narrow size distribution have been synthesized in one pot process under highly condensed hydrothermal reactions using cobalt(II) nitrate (Co(NO 3 ) 2 ) and sodium hydroxide or tetramethylammonium hydroxide. The particle morphology was controlled to a cubic shape by change in the initial pH. The particle mean diameter was also gradually controlled by the change in the initial pH in the range from 18 nm to 66 nm. Co(OH) 2 hexagonal thin platelet particles were obtained as the predominant product when CoSO 4 , CoCl 2 , and Co(CH 3 COO) 2 were used as the Co-source. The result indicated that oxidation ability of nitrate anions played an important role to obtain the Co 3 O 4 nanocubes in the one pot process.

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Section: Introductionmentioning

confidence: 99%

Direct Hydrothermal Synthesis of Size-Controlled Co3O4 Nanocubes under Highly Condensed Conditions

2017

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“…The image reveals undefined shape with similar particle size forming agglomerates that can be associated with the high surface energy of the nanometric crystals. The material synthesized when compared to other sol-gel methods, we can observe that the size of particles and agglomerates are similar, around 10 and 20 nm 26,43 . The voltammograms for the Co 3 O 4 electrode at scan rates of 1, 25 and 100 mV s -1 in the potential range of 0 -0.6 V for 1 mol L -1 KOH electrolyte is shown in Fig.…”

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confidence: 83%

Pseudocapacitance Properties of Co3O4 Nanoparticles Synthesized Using a Modified Sol-Gel Method

et al. 2018

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This work reports the synthesization of nanoparticles cobalt oxide (Co 3 O 4 ) with no secondary phase by a modified sol-gel method and its structural morphological and electrochemical characterizations. FTIR, XRD and Raman analysis showed the formation of spinel cobalt oxide with no secondary phase. TEM images revealed that an undefined morphology with average crystallite size estimated by Scherrer's equation was found to be 30 nm. Experiments of cyclic voltametric, galvanostatic chargedischarge and impedance spectroscopy were evaluated at 1 mol L -1 KOH and revealed an intrinsic pseudocapacitance. The studies of complex capacitance and complex power revealed the resistive and capacitive characteristics with a specific capacitance of 120 F g -1 .

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“…According to the proton transfer theory, decomposition starts through proton transfer from NH 4 + to ClO 4 ⁻ (Equation 2) and then further reactions cause partial decomposition of AP. From the electron transfer theory, the main decomposition stage, which occurs at higher temperatures, is initiated by electron transfer from anion to cation which leads to NH 4̊ and ClO 4 0 species [43]:…”

Section: Catalytic Activitymentioning

confidence: 99%

Synthesis and Characterization of CuO Nanoparticles by the Chemical Liquid Deposition Method and Investigation of its Catalytic Effect on the Thermal Decomposition of Ammonium Perchlorate

Eslami¹,

Juibari²,

Hosseini³

et al. 2017

Cent. Eur. J. Energ. Mater.

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Abstract:Copper oxide nanoparticles have been synthesized by the chemical liquid deposition method and characterized by means of X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). The XRD and SEM results showed that the particle size was between 50 nm and 70 nm. Ammonium perchlorate (AP)-CuO nanostructures have been prepared by ex-situ mixing of AP and CuO nanoparticles, while AP/CuO nanocomposites have been obtained by in-situ growth of nano CuO on the surface of AP. The effect of the nanoparticles on the thermal decomposition of AP has been examined by differential scanning calorimetery (DSC) and thermogravimetric analysis (TGA) methods. The results showed that the ex-situ prepared nanoparticles had better catalytic activity than the in-situ prepared ones. The effect of the synthesized nanoparticles on the thermal decomposition of AP in experiments with a AP to CuO ratio of 98:2 was as follows: with the ex-situ prepared experiments, the decomposition temperature decreased from 428 °C to 348 °C and the heat released increased from 344 J·g −1 to 1432 J·g

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

Cited by 266 publications

References 58 publications

Direct Hydrothermal Synthesis of Size-Controlled Co<sub>3</sub>O<sub>4</sub> Nanocubes under Highly Condensed Conditions

Direct Hydrothermal Synthesis of Size-Controlled Co<sub>3</sub>O<sub>4</sub> Nanocubes under Highly Condensed Conditions

Pseudocapacitance Properties of Co3O4 Nanoparticles Synthesized Using a Modified Sol-Gel Method

Synthesis and Characterization of CuO Nanoparticles by the Chemical Liquid Deposition Method and Investigation of its Catalytic Effect on the Thermal Decomposition of Ammonium Perchlorate

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