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Title: Size and shape controlled synthesis of metal oxide nanoparticles and their applications
Keywords: nanoparticles
Researcher: Rakesh Chowdhury
Guide(s): Md. Harunar Rashid
Registration Date: 09-03-2016
Abstract: newlineThe metal elements have a great tendency to form metal oxide after reacting with air. By applying appropriate synthetic route and conditions the oxide of metal or transition metal of nanoscale size can be prepared. Although new and many more MONPs are reported on regular basis after seeing their important role in many areas of chemistry , physics and material science and their technological applications, considerable synthetic and technological work remains to be done to fully exploit this ever increasing family of compounds for advanced materials applications. It is well known that the physicochemical properties of such metal oxide NPs are highly dependent not only on the size but also on the shape of the nanoparticles. Such size and shape dependent properties are critical parameters for their applications in various fields. Apart from this, the band gap energy of metal oxide NPs are also vastly influenced by the size and shape of the metal oxide NPs. As a result these nanoparticles show interesting size and shape tunable optical properties. Such interesting optoelectronic properties makes them suitable candidate for application in photocatalysis, sensor, bio-sensor, solar cell, battery etc. Consequently, during the last few years researchers have been extensively studying efficient synthetic routes to well defined nanoparticles with controlled size and shape. These include both the physical and the chemical approaches such as vapour-liquid-solid (VLS) methods, chemical vapour deposition (CVD) methods, thermal evaporation. and liquid phase colloidal synthesis in aqueous or non-hydrolytic media. Relatively harsh conditions are employed in physical methods, making them unsuitable for the encapsulation of sensitive materials, and encapsulation of materials after their formation is often difficult. Other disadvantages are the lack of control over size, geometry, and uniformity of the nanoparticles produced. newline newlineKeeping in mind the simplicity and scalability, in the current work, we intend to use the liquid phase col
Language: English
Appears in Department:Department of Chemistry

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