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

Journal Article · Tue May 15 00:00:00 EDT 2018 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2018.01.013· OSTI ID:22803955

Chen, Ying ^[1]; Ma, Kefeng ^[2]; Wang, Jiaxin; Gao, Yu; Zhu, Xufei; Zhang, Wenchao ^[1]

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1. School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094 (China)
2. School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094 (China)

Highlights: • Nano-MnO{sub 2} was produced easily. • Nano-MnO{sub 2} can promote the decomposition of AP. • Sea-urchin nano-MnO{sub 2} is a superior catalyst. - Abstract: In order to investigate the catalytic activity of nano-MnO{sub 2} on the thermal decomposition of ammonium perchlorate, two different shapes of nano-MnO{sub 2} (sea-urchin and linear) were prepared by the hydrothermal method with MnSO{sub 4}·H{sub 2}O and Na{sub 2}S{sub 2}O{sub 8}, MnSO{sub 4}·H{sub 2}O and (NH{sub 4}){sub 2}S{sub 2}O{sub 8}, respectively. X-ray diffraction, scanning electron microscopy and the nitrogen adsorption/desorption analysis were used to characterize the structure of the nanocomposites. The sea-urchin nano-MnO{sub 2} possesses a greater specific surface area than the linear nano-MnO{sub 2}. The catalytic properties of nano-MnO{sub 2} on the thermal decomposition of ammonium perchlorate (AP) were demonstrated by differential scanning calorimeter (DSC). As show in the DSC carves, the addition of the sea-urchin nano-MnO{sub 2} got the thermal decomposition peak temperature of AP reduced much more than the addition of the linear nano-MnO{sub 2}, the low-temperature decomposition process even disappeared, and the high-temperature pyrolysis peak temperature decreased by 94.6 °C. All evidences indicated that the sea-urchin nano-MnO{sub 2} is a better catalytic than the linear one.

• OSTI ID: 22803955
• Journal Information: Materials Research Bulletin, Vol. 101; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ADSORPTION
AMMONIUM PERCHLORATES
CALORIMETERS
CATALYSTS
DESORPTION
HYDROTHERMAL SYNTHESIS
MANGANESE OXIDES
MANGANESE SULFATES
NANOCOMPOSITES
NITROGEN
PYROLYSIS
SCANNING ELECTRON MICROSCOPY
SODIUM SULFATES
SPECIFIC SURFACE AREA
TEMPERATURE RANGE 0400-1000 K
WATER
X-RAY DIFFRACTION