非辐射加热合成纳米材料

Non-thermal radiation heating synthesis of nanomaterials

纳米尺度效应使纳米材料具有独特的磁、光、热和电性能,在催化、生物医学传感器、能量存储和转换等领域得到了广泛的研究.目前常用的合成方法都是基于热辐射的体相加热过程,如传统的水热和煅烧等.与传统加热方式不同,非热辐射加热方法具有局部加热的特点.为此,本文总结了合成纳米材料的各种非辐射加热方法,包括微波加热、感应加热、焦耳加热、激光加热和电子束加热.并对各种非热辐射加热方法合成纳米材料的优缺点进行了比较和讨论.最后,展望了非辐射加热法合成纳米材料的发展前景和面临的挑战.

The nanoscale effect enables the unique magnetic,optical,thermal and electrical properties of nanostructured materials and has attracted extensive investigation for applications in catalysis,biomedicine,sensors,and energy storage and conversion.The widely used synthesis methods,such as traditional hydrothermal reaction and calcination,are bulk heating processes based on thermal radiation.Differing from traditional heating methods,non-thermal radiation heating technique is a local heating mode.In this regard,this review summarizes various non-thermal radiation heating methods for synthesis of nanomaterials,including microwave heating,induction heating,Joule heating,laser heating and electron beam heating.The advantages and disadvantages of these non-thermal radiation heating methods for the synthesis of nanomaterials are compared and discussed.Finally,the future development and challenges of non-thermal radiation heating method for potential synthesis of nanomaterials are discussed.