Preparation of Hydrotalcites Derived Ni/Co/Cu/Fe Nanocomposite Oxides and their Catalytic Activities for Thermal Decomposition of Ammonium Perchlorate

2013 ◽  
Vol 683 ◽  
pp. 534-539 ◽  
Author(s):  
Hong Bo Liu ◽  
Zhi Yong Huang ◽  
Bing Zhi Guo ◽  
Qing Ze Jiao
Keyword(s):  
Thermal Decomposition ◽  
Ammonium Perchlorate ◽  
Spinel Phase ◽  
Average Crystallite Size ◽  
Thermal Decomposition Process ◽  
Nano Composite ◽  
Catalytic Activities ◽  
Surface Areas ◽  
Composite Oxides ◽  
Dta And Tg

Ni/Co/Cu/Fe nano-composite oxides (Ni/Co/Cu/Fe–NCOs) were prepared by calcination of Ni/Co/Cu/Fe hydrotalcites (Ni/Co/Cu/Fe–HTs) precursors. Ni/Co/Cu/Fe–NCOs were used as new catalysts on improving thermal decomposition of ammonium perchlorate (AP). Their catalytic activities were investigated using DTA and TG–MS. The results revealed that Ni/Co/Cu/Fe–NCOs exhibited NiO and spinel phase with high specific surface areas of 90–120 m2 g–1. They have homogenous particles with average crystallite size in the range of 50–60 nm. The thermal decomposition process of AP can be accelerated by the addition of Ni/Co/Cu/Fe–NCOs. Ni/Co/Cu/Fe–NCOs achieved the purpose of improving thermal decomposition of AP based on the presence of superoxide ion (O2–) on the surface of Ni/Co/Cu/Fe–NCOs.

Catalytic Thermal Decomposition of Ammonium Perchlorate Using Cu/Cr Hydrotalcite Derived Nanocomposite Oxides

2012 ◽  
Vol 535-537 ◽  
pp. 275-279 ◽  
Author(s):  
Hong Bo Liu ◽  
Bing Zhi Guo ◽  
Zhi Yong Huang ◽  
Hong Hui Xu ◽  
Chu Yang Fang ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Thermal Decomposition ◽  
Differential Thermal Analysis ◽  
Ammonium Perchlorate ◽  
Catalytic Mechanism ◽  
Decomposition Process ◽  
Mechanical Mixture ◽  
Thermal Decomposition Process ◽  
Catalytic Activities ◽  
Catalytic Thermal Decomposition

A series of Cu/Cr nanocomposite oxides (Cu/Cr–NCOs) were prepared by Cu/Cr hydrotalcite precursors. Their catalytic activities on thermal decomposition of ammonium perchlorate (AP) were investigated by differential thermal analysis (DTA). The results show that Cu/Cr–NCOs are efficient in enhancing thermal decomposition of AP. With 4 wt. % addition of 500 °C calcined Cu2Cr–NCOs, the thermal decomposition process of AP can be accelerated by 107 °C. Cu/Cr–NCOs catalysts have better effect compared to mechanical mixture of CuO and Cr2O3 catalyst. Their catalytic mechanism was also discussed.

Nature of Catalytic Activities of CoO Nanocrystals in Thermal Decomposition of Ammonium Perchlorate

2008 ◽  
Vol 47 (19) ◽  
pp. 8839-8846 ◽  
Author(s):  
Liping Li ◽  
Xuefei Sun ◽  
Xiaoqing Qiu ◽  
Jiaoxing Xu ◽  
Guangshe Li
Keyword(s):  
Thermal Decomposition ◽  
Ammonium Perchlorate ◽  
Catalytic Activities

Catalytic activities of two different morphological nano-MnO2 on the thermal decomposition of ammonium perchlorate

2018 ◽  
Vol 101 ◽  
pp. 56-60 ◽  
Author(s):  
Ying Chen ◽  
Kefeng Ma ◽  
Jiaxin Wang ◽  
Yu Gao ◽  
Xufei Zhu ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Ammonium Perchlorate ◽  
Catalytic Activities

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.

NOVEL PREPARATION OF NANO-COMPOSITE CuO-Cr2O3 USING CTAB-TEMPLATE METHOD AND EFFICIENT FOR HYDROGENATION OF BIOMASS-DERIVED FURFURAL

2013 ◽  
Vol 06 (01) ◽  
pp. 1350007 ◽  
Author(s):  
KAI YAN ◽  
XU WU ◽  
XIA AN ◽  
XIANMEI XIE
Keyword(s):  
High Surface ◽  
High Surface Area ◽  
Metal Nitrate ◽  
Hexadecyltrimethylammonium Bromide ◽  
X Ray Diffraction ◽  
Nano Composite ◽  
Catalytic Activities ◽  
Composite Oxides ◽  
Novel Method ◽  
Templating Effect

A simple route to fabricate nano-composite oxides CuO-Cr2O3 using hexadecyltrimethylammonium bromide (CTAB)-templated Cu-Cr hydrotalcite as the precursor is presented. This novel method is based on CTAB-templating effect for mesostructure directing and using the cheap metal nitrate, followed by removal of CTAB. It was indicated that the nano-composite CuO-Cr2O3 was formed during the removal of CTAB. X-ray diffraction (XRD) and transitional electronic microscopy (TEM) revealed nice nano-composite oxides CuO-Cr2O3 were formed with high crystallinity. N2 adsorption and desorption indicated that a high surface area of 170.5 m2/g with a pore size of 2.7 nm of the nano-composite CuO-Cr2O3 was facilely resulted. The as-synthesized nano-composite oxides CuO-Cr2O3 display good catalytic activities for hydrogenation of furfural to furfuryl alcohol, whereas 86% selectivity was achieved at 75% conversion of furfural.

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