文章摘要
程志,彭汝芳.高速气流法低温固相合成锰基金属有机框架[J].精细化工,2018,35(5):
高速气流法低温固相合成锰基金属有机框架
A innovated synthesis of Mn-BTC through high-speed air flow circulation in the condition of the solid phase at low-temperatures
投稿时间:2017-07-22  修订日期:2018-01-07
DOI:
中文关键词: 高速气流法  Mn-BTC  Mn2O3  催化AP  环境友好
英文关键词: High-speed gas flow method  Mn-BTC  Mn2O3  Catalytic AP  Environment friendly
基金项目:国家自然科学基金国家重大仪器设备专项(51327804)
作者单位E-mail
程志 西南科技大学 1577910661@qq.com 
彭汝芳 西南科技大学 rfpeng2006@163.com 
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中文摘要:
      以均苯三甲酸和乙酸锰为原料,应用一种机械化学法即高速气流法低温固相合成锰金属有机框架(Mn-BTC)材料,并通过XRD、FTIR、TG、SEM对Mn-BTC的结构进行了表征。以Mn-BTC为前体制备Mn2O3,研究了其对高氯酸铵(AP)热分解的催化作用。结果表明:相比传统液相扩散法合成Mn-BTC需要24 h,高速气流法只需要10 min,并且合成过程操作简便、耗能低、效率高、绿色环保、易于工业化生产。与液相扩散法相比,以高速气流法合成的Mn-BTC为前体制备的Mn2O3具有更好的AP催化效果,可使高温分解(HTD)温度降低158℃。
英文摘要:
      By high-speed air flow circulation, a porous Mn-based metal-organic framework (Mn-BTC) was prepared from manganese acetate tetrahydrate and trimesic acid in the condition of the solid phase at low-temperature. The Mn-BTC was characterized by X-Ray diffraction (XRD) technique, IR spectroscopy (FTIR), thermogravimetric analysis (TG) and scanning electron microscopy (SEM). Moreover, an easy route for the synthesis of Mn2O3 by direct pyrolysis of Mn-BTC was also reported. The catalytic effect of Mn2O3 on the decomposition of AP was studied in detail. The results showed that the time for the synthesis of Mn-TBC by high-speed air flow could be reduced to 10 min, while the time for the diffusion in liquid phase was 24 h. In addition, the process of high-speed air flow method is easy to operate, low energy to cost, high efficiency to synthesize and also friendly to environment, which are benefit to this method to be industrialization. Compared to the product from the liquid phase diffusion’s precursor, the Mn2O3 prepared by the high-speed air flow method’s product, has better effect to catalyze the AP and can make the high thermal decomposition temperature (HTD) reduce by 158 ℃.
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