Effects of amorphous structure on the catalytic properties of NiO in the thermal decomposition of typical energy-containing materials

被引：0

作者：

Li, SiHeng ^{[1
]}

Jiang, YiFan ^{[1
]}

Zhao, FengQi ^{[1
]}

Li, Na ^{[1
]}

Liu, Ding ^{[1
]}

Dong, YingNan ^{[1
]}

Qu, WenGang ^{[1
]}

机构：

[1] National Key Laboratory of Energetic Materials, Xi'an Modern Chemistry Research Institute, 168 Zhangba Road

来源：

Thermochimica Acta | 2025年 / 748卷

基金：

中国国家自然科学基金;

关键词：

Amorphous Nickel oxide; HMX; Lamellar structure; Solid propellants; Thermal decomposition;

D O I：

10.1016/j.tca.2025.179996

中图分类号：

学科分类号：

摘要：

The Nickel oxide (NiO) exhibited good catalytic performance for the thermal decomposition of AP but has limited catalytic activity for RDX and HMX. By adjusting the amorphous state, the number of active sites on the surface of NiO can be increased, thereby enhancing its catalytic activity. In this study, the amorphous NiO (Ra-NiO) with high specific surface area was successfully synthesized and characterized systemically. The Ra-NiO exhibited superior catalytic properties for the thermal decomposition of AP, HMX and RDX. Compared with the commercial γ-NiO, the Ra-NiO decreased the peak decomposition temperature of the HMX by 14.6 °C as well as the activation energy by 213.5 kJ·mol-1. Furthermore, the initial decomposition temperature is decreased by 68.8°C and the heat release is increased by 34.5 % (752.4 J·g-1). These results underscore the substantial advantages of amorphous modulation in enhancing the catalytic activity of catalysts. © 2025 Elsevier B.V.

引用

共 54 条

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