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首页> 外文期刊>Combustion Science and Technology >EFFECT OF PARTICLE SIZE ON REACTIVITY AND COMBUSTION CHARACTERISTICS OF ALUMINUM NANOPARTICLES
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EFFECT OF PARTICLE SIZE ON REACTIVITY AND COMBUSTION CHARACTERISTICS OF ALUMINUM NANOPARTICLES

机译：粒径对铝纳米颗粒反应性和燃烧特性的影响

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摘要

Three different size aluminum nanoparticles are introduced in order to study the effect of particle size on reactivity and combustion characteristics. Structure and morphology of these aluminum nanoparticles are characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The results show that the mean particle sizes of these aluminum particles are 60 nm, 80 nm, and 110 nm with amorphous surface oxide. Thermogravimetry and differential thermal analysis (TG-DTA) and the burning performance (burning rate and pressure exponent) measurement are used to characterize the reactivity of three kinds of aluminum nanoparticles. It is found that the reactivity of aluminum nanoparticles is increased at first and then decreased as the particle size decreasing from 110 nm to 60 nm, which is possibly due to double function of the high specific surface area. Therefore, the reactivity of aluminum nanoparticles depends on many factors, it is important to consider all these factors before pursuing the small particles.
机译：为了研究粒度对反应性和燃烧特性的影响，引入了三种不同尺寸的铝纳米颗粒。这些铝纳米颗粒的结构和形态通过X射线衍射（XRD）和透射电子显微镜（TEM）表征。结果表明，这些铝颗粒的平均粒径为60 nm，80 nm和110 nm，且表面无定形。用热重分析和差热分析（​​TG-DTA）以及燃烧性能（燃烧速率和压力指数）测量来表征三种铝纳米颗粒的反应性。发现铝纳米颗粒的反应性首先增加，然后随着粒径从110nm减小到60nm而降低，这可能是由于高比表面积的双重作用。因此，铝纳米颗粒的反应性取决于许多因素，在追求小颗粒之前，必须考虑所有这些因素。

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  • 来源
    《Combustion Science and Technology》 |2015年第9期|1036-1043|共8页
  • 作者

    Zha Mingxia; Lv Xuewen; Ma Zhenye; Zhang Lixiong; Zhao Fengqi; Xu Siyu; Xu Huixiang;

  • 作者单位

    Nanjing Normal Univ, Sch Chem & Mat Sci, Nanjing 210097, Jiangsu, Peoples R China;

    Nanjing Normal Univ, Sch Chem & Mat Sci, Nanjing 210097, Jiangsu, Peoples R China;

    Nanjing Normal Univ, Sch Chem & Mat Sci, Nanjing 210097, Jiangsu, Peoples R China;

    Nanjing Tech Univ, Coll Chem & Chem Engn, Nanjing, Jiangsu, Peoples R China;

    Xian Modern Chem Res Inst, Sci & Technol Combust & Explos Lab, Xian, Peoples R China;

    Xian Modern Chem Res Inst, Sci & Technol Combust & Explos Lab, Xian, Peoples R China;

    Xian Modern Chem Res Inst, Sci & Technol Combust & Explos Lab, Xian, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Aluminum nanoparticles; Combustion behaviors; Particle size; Reactivity;

    机译：铝纳米颗粒;燃烧行为;颗粒尺寸;反应性;

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