Effect of Synthesis Parameters on the Characteristics and Catalytic Activity of Combined Metal Oxide Catalysts of Thermal Decomposition of Ammonium Perchlorate

IF 0.9 4区工程技术 Q4 ENERGY & FUELS

Combustion, Explosion, and Shock Waves Pub Date : 2024-01-22 DOI:10.1134/s0010508223060084

I. I. Lebedeva, K. O. Ukhin, M. A. Savast’yanova, N. B. Kondrashova, V. A. Val’tsifer, V. N. Strel’nikov, I. G. Mokrushin

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Abstract

This paper presents combined metal oxide catalysts for the decomposition of ammonium perchlorate, combining two transition metal oxides (iron and cobalt) deposited on the surface of a carbon support. Combined catalysts are obtained by impregnation and chemical precipitation methods. Catalyst samples containing various phases of iron and cobalt oxides are obtained by varying the calcination temperature. The structural and morphological features of the synthesized catalysts are studied using different methods: X-ray diffraction, scanning electron microscopy, and Brunauer–Emmett–Teller surface area. As shown by the study performed using differential scanning calorimetry, the synthesized combination catalysts manifest high catalytic activity during the thermal decomposition of ammonium perchlorate, reducing the peak temperature of the high-temperature stage of decomposition by more than 60°C.

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合成参数对高氯酸铵热分解组合金属氧化物催化剂特性和催化活性的影响

摘要本文介绍了用于分解高氯酸铵的组合金属氧化物催化剂，该催化剂结合了沉积在碳载体表面的两种过渡金属氧化物（铁和钴）。组合催化剂是通过浸渍法和化学沉淀法获得的。通过改变煅烧温度可获得含有不同铁和钴氧化物相的催化剂样品。使用不同的方法对合成催化剂的结构和形态特征进行了研究：X 射线衍射、扫描电子显微镜和布鲁瑙尔-艾美特-泰勒表面积。使用差示扫描量热法进行的研究表明，合成的组合催化剂在高氯酸铵的热分解过程中具有很高的催化活性，可将分解高温阶段的峰值温度降低 60°C 以上。

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来源期刊

Combustion, Explosion, and Shock Waves 工程技术-材料科学：综合

CiteScore

1.60

自引率

16.70%

发文量

审稿时长

5.7 months

期刊介绍： Combustion, Explosion, and Shock Waves a peer reviewed journal published in collaboration with the Siberian Branch of the Russian Academy of Sciences. The journal presents top-level studies in the physics and chemistry of combustion and detonation processes, structural and chemical transformation of matter in shock and detonation waves, and related phenomena. Each issue contains valuable information on initiation of detonation in condensed and gaseous phases, environmental consequences of combustion and explosion, engine and power unit combustion, production of new materials by shock and detonation waves, explosion welding, explosive compaction of powders, dynamic responses of materials and constructions, and hypervelocity impact.