Abstract
In the last couple of decades, there has been a lot of progress in the synthesis methods of nano-structural materials, but still the field has a large number of puzzles to solve. Metal nanowires (NWs) and their alloys represent a sub category of the 1-D nano-materials and there is a large effort to study the microstructural, physical and chemical properties to use them for further industrial applications. Due to technical limitations of single component NWs, the hetero-structured materials gained attention recently. Among them, multi-segmented NWs are more diverse in applications, consisting of two or more segments that can perform multiple function at a time, which confer their unique properties. Recent advancement in characterization techniques has opened up new opportunities for understanding the physical properties of multi-segmented structures of 1-D nanomaterials. Since the multi-segmented NWs needs a reliable response from an external filed, numerous studies have been done on the synthesis of multi-segmented NWs to precisely control the physical properties of multi-segmented NWs. This paper highlights the electrochemical synthesis and physical properties of multi-segmented NWs, with a focus on the mechanical and magnetic properties by explaining the shape, microstructure, and composition of NWs.
Highlights
One-dimensional (1-D) nanostructures contain an important class of nano-science and technology.Nanowires (NWs) are defined as a 1-D structure with a transverse limit of less than 100 nm [1]
This review mostly focuses on the materials, that is, Ni, Fe, Co, CoFe, and NiFe, etc, which were electrodeposited as magnetic segments, whereas Cu, Pt and Ag were electrodeposited as nonmagnetic segments
This study shows that the research focuses on microstructure and mechanical properties of 1-D nanostructures, and will help further in the use of such materials in magnetic and sensing devices
Summary
One-dimensional (1-D) nanostructures contain an important class of nano-science and technology. Multi-segmented NWs, usually prepared using the templates assisted method, template synthesis of NWs array contains the electrochemical reduction of one or more ions of desirable metals inside the nano-pore channels of an insulating membrane [17]. Multi-segmented NWs prepared from templates can significantly be used for device fabrication and have a wide range of applications [17,18,19,20,21,22]. The microsturucture of the multi-segmented NWs was discussed, and we focused on the mechanical and magnetic properties of multi-layered NWs. This study shows that the research focuses on microstructure and mechanical properties of 1-D nanostructures, and will help further in the use of such materials in magnetic and sensing devices.
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