Synthesis of Nitrogen-Doped ZnO Nanocrystallites and its Novel Catalytic Activity on Ammonium Perchlorate

2011 ◽  
Vol 236-238 ◽  
pp. 1665-1669
Author(s):  
Min Zheng ◽  
Zuo Shan Wang ◽  
Qing Wang
Keyword(s):  
Thermal Decomposition ◽  
Catalytic Activity ◽  
Ammonium Perchlorate ◽  
Photoelectron Spectroscopy ◽  
Catalytic Performance ◽  
Nitrogen Doped ◽  
Nitrogen Incorporation ◽  
One Step ◽  
Doped Zno ◽  
Zno Crystal

Nitrogen-doped zinc oxide (N-doped ZnO) nanocrystallites were synthesized via improved one-step combustion technique by using citric acid as additive. Scan electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) were used to determine the grain size, shape, degree of nitrogen incorporation and nature of the resultant oxynitride chemical bonding. The catalytic performance of N-doped ZnO on the thermal decomposition of ammonium perchlorate (AP) was investigated by DSC-TG technique. The results show that the as-synthesized N-doped ZnO has uniform crystallite size about 20-30nm in diameter and 1.25%wt nitrogen incorporation, which forms into NO bonding region in ZnO crystal lattice. The nitrogen doping is accountable for the significant increase in catalytic activity on the thermal decomposition of AP versus the commercial nanometer ZnO and the thermal decomposition peak shifts 133°C downward when the content of N-doped ZnO in AP is 3%wt.

scholarly journals Facile preparation of rGO/MFe2O4(M = Cu, Co, Ni) nanohybrids and its catalytic performance during the thermal decomposition of ammonium perchlorate

RSC Advances ◽  
2018 ◽  
Vol 8 (56) ◽  
pp. 32221-32230 ◽  
Author(s):  
Weiran Wang ◽  
Dongxiang Zhang
Keyword(s):  
Thermal Decomposition ◽  
Catalytic Activity ◽  
Ammonium Perchlorate ◽  
Catalytic Performance ◽  
Decomposition Process ◽  
Thermal Decomposition Process ◽  
Facile Preparation

The rGO/MFe2O4(M = Cu, Co, Ni) nanohybrids show amazing catalytic activity in the thermal decomposition process of AP.

Freestanding CuS nanowalls: ionic liquid-assisted synthesis and prominent catalytic performance for the decomposition of ammonium perchlorate

CrystEngComm ◽  
2017 ◽  
Vol 19 (34) ◽  
pp. 5048-5057 ◽  
Author(s):  
Kaisheng Yao ◽  
Chenchen Zhao ◽  
Nannan Sun ◽  
Weiwei Lu ◽  
Yuan Zhang ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Ionic Liquid ◽  
Catalytic Activity ◽  
Ammonium Perchlorate ◽  
Catalytic Performance ◽  
Liquid Interface

Freestanding CuS nanowalls, with excellent catalytic activity for AP thermal decomposition, were grown and assembled at the [C10mim]Br-modulated liquid–liquid interface.

scholarly journals Preparation of Co Nanocrystallites by Solvothermal Process and Its Catalytic Activity on the Thermal Decomposition of Ammonium Perchlorate

2010 ◽  
Vol 2010 ◽  
pp. 1-5 ◽  
Author(s):  
Shusen Zhao ◽  
Dongxu Ma
Keyword(s):  
Thermal Decomposition ◽  
Catalytic Activity ◽  
Ammonium Perchlorate ◽  
Catalytic Performance ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Selected Area Electron Diffraction ◽  
Transmission Electron ◽  
Polyol Medium ◽  
Decomposition Behavior

Nanometer cobalt ferrite (Co) was synthesized by polyol-medium solvothermal method and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and selected area electron diffraction (SAED). Further, the catalytic activity and kinetic parameters of Co nanocrystallites on the thermal decomposition behavior of ammonium perchlorate (AP) have been investigated by thermogravimetry and differential scanning calorimetry analysis (TG-DSC). The results imply that the catalytic performance of Co nanocrystallites is significant and the decrease in the activation energy and the increase in the rate constant for AP further confirm the enhancement in catalytic activity of Co nanocrystallites. A mechanism based on an proton transfer process has also been proposed for AP in the presence of Co nanocrystallites.

scholarly journals A Facile Method to Construct MXene/CuO Nanocomposite with Enhanced Catalytic Activity of CuO on Thermal Decomposition of Ammonium Perchlorate

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2457 ◽  
Author(s):  
Haifeng Zhao ◽  
Jing Lv ◽  
Junshan Sang ◽  
Li Zhu ◽  
Peng Zheng ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Catalytic Activity ◽  
Ammonium Perchlorate ◽  
Photoelectron Spectra ◽  
Gravimetric Analysis ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Improved Performance ◽  
Calcination Method

In this work, a mixing-calcination method was developed to facilely construct MXene/CuO nanocomposite. CuO and MXene were first dispersed in ethanol with sufficient mixing. After solvent evaporation, the dried mixture was calcinated under argon to produce a MXene/CuO nanocomposite. As characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and X-ray photoelectron spectra (XPS), CuO nanoparticles (60–100 nm) were uniformly distributed on the surface and edge of MXene nanosheets. Furthermore, as evaluated by differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA), the high-temperature decomposition (HTD) temperature decrease of ammonium perchlorate (AP) upon addition of 1 wt% CuO (hybridized with 1 wt% MXene) was comparable with that of 2 wt% CuO alone, suggesting an enhanced catalytic activity of CuO on thermal decomposition of AP upon hybridization with MXene nanosheets. This strategy could be further applied to construct other MXene/transition metal oxide (MXene/TMO) composites with improved performance for various applications.

scholarly journals HMT-Controlled Synthesis of Mesoporous NiO Hierarchical Nanostructures and Their Catalytic Role towards the Thermal Decomposition of Ammonium Perchlorate

2019 ◽  
Vol 9 (13) ◽  
pp. 2599 ◽  
Author(s):  
Songzhong Ye ◽  
Xiangfeng Guan
Keyword(s):  
Thermal Decomposition ◽  
Ammonium Perchlorate ◽  
Photoelectron Spectroscopy ◽  
Hydrothermal Reaction ◽  
Synthetic Approach ◽  
Hierarchical Nanostructures ◽  
X Ray ◽  
Temperature Decomposition ◽  
Catalytic Role ◽  
Subsequent Calcination

In this work, mesoporous nickel oxide (NiO) hierarchical nanostructures were synthesized by a facile approach by hydrothermal reaction and subsequent calcination. The phase structure, microstructure, element composition, surface area, and pore size distribution of the as-prepared products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and the Brunauer–Emmett–Teller (BET) technique. The precursor of Ni3(NO3)2(OH)4 nanosheet, Ni3(NO3)2(OH)4 microsphere, and Ni(HCO3)2 sub-microsphere was obtained by hydrothermal reaction at 160 °C for 4 h when the ratio of Ni2+/HMT (hexamethylenetetramine) was 2:1, 1:2, and 1:3, respectively. After calcination at 400 °C for 2 h, the precursors were completely transformed to mesoporous NiO hierarchical nanosheet, microsphere, and sub-microsphere. When evaluated as additives of the thermal decomposition of ammonium perchlorate (AP), these NiO nanostructures significantly reduce the decomposition temperature of AP, showing obvious catalytic activity. In particular, NiO sub-microsphere have the best catalytic role, which can reduce the high temperature decomposition (HTD) and low temperature decomposition (LTD) temperature by 75.2 and 19.1 °C, respectively. The synthetic approach can easily control the morphology and pore structure of the NiO nanostructures by adjusting the ratio of Ni2+/HMT in the reactants and subsequent calcination, which avoids using expensive templates or surfactant and could be intended to prepare other transition metal oxide.

Rapid microwave-assisted hydrothermal synthesis of CeO2 octahedra with mixed valence states and their catalytic activity for thermal decomposition of ammonium perchlorate

2019 ◽  
Vol 6 (7) ◽  
pp. 1735-1743 ◽  
Author(s):  
Jing Shi ◽  
Huixiang Wang ◽  
Yequn Liu ◽  
Xiaobo Ren ◽  
Haizhen Sun ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Catalytic Activity ◽  
Hydrothermal Synthesis ◽  
Ammonium Perchlorate ◽  
Oxygen Vacancies ◽  
Mixed Valence ◽  
High Concentration ◽  
Microwave Assisted ◽  
Valence States

CeO2 octahedra are prepared rapidly and they exhibit improved catalytic activity due to high concentration of oxygen vacancies and exposed (111) facets.

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