Tunable catalytic activities of different α-Fe2O3 surface areas in ammonium perchlorate thermal decomposition

2018 1st International Conference on Environment Prevention and Pollution Control Technology

生态环境科学

Chen, L.J.^1 ; Shen, P.H.^1 ; Zhu, D.Y.^2

Department of Safety Technology and Environmental Engineering, Fujian Chuanzheng Communications College, Fuzhou

350007, China^1

School of Materials Science and Engineering, Fuzhou University, Fuzhou

350108, China^2

关键词: Ammonium perchlorates;    Annealing temperatures;    Brunauer-Emmett-Teller techniques;    Decomposition rate;    High temperature peaks;    Surface area;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/199/3/032088/pdf
DOI  :  10.1088/1755-1315/199/3/032088

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Different surface areas of α-Fe2O3 nanocrystals have been achieved by annealing at different temperatures. Obtained samples were characterized by X-ray diffraction, Brunauer-Emmett-Teller technique, and transmission electron microscopy. The surface areas of α-Fe2O3 nanocrystals changed from 136.5 m2/g to 2.1 m2/g with the increase of annealing temperature from 280 °C to 700 °C. α-Fe2O3 nanocrystal catalytic activity on the decomposition of ammonium perchlorate (AP) was characterized through thermogravimetric analysis. The decomposition rate of AP with the addition of α-Fe2O3 nanocrystals was surface area relative. The 136.5 m2/g α-Fe2O3 nanocrystal exhibited the best catalytic activity, which lowered the high-temperature peak temperature of AP by 60.8 °C.