Production, modification and characterisation of nanostructural wires, tubes, and coils

通过传统(自上而下)技术生产的可结构化部件的小型化导致了许多无法解决的技术问题。然而，直接合成纳米结构的方法，如纳米管和纳米线(自下而上)，在技术上是可能的。它们既可以直接生产，也可以使用模板(主体结构)进行生长。实现这些纳米结构的一种很有前途的方法是通过在碳纳米管(CNTs)或碳纳米钟(CNBS)表面电镀铜或镍等金属来制备金属/碳核壳纳米结构。此外，在生产过程中，这些碳纳米管可以通过共沉积过程以受控的方式填充金属(铜、镍)。通过这种方式，可以生成纳米结构复合管(Me/C)和复合线(C/Me)。此外，随后可以使用蚀刻过程去除碳结构，留下金属纳米管或纳米线作为最终产品。在机械稳定性、导电性和光学性能方面的一系列优势有望在这些有趣的材料中展示出来。在本项目提案中，将审查上述纳米线和纳米管(复合材料或纯金属)受控生产的可能性，并确定对其生产具有重要意义的参数范围。通过综合使用一系列分析方法，对所产生的结构进行平行和基本的描述，以形成该方案的结论。

The miniaturisation of structurable components produced by means of conventional (top down) techniques leads to a number of insoluble technical problems. Methods for the direct synthesis of nanostructures, such as nanotubes and nanowires (bottom up) are, however, technically possible. These can either be directly produced, or a template (host structure) can be used for their growth. A promising method for the realisation of these nanostructures is the production of Metal/Carbon Core-Shell nanostructures through the galvanic surface coating of Carbon-Nano-Tubes (CNTs) or Carbon-Nano-Bells (CNBs) with metals such as Cu or Ni. Additionally, these CNTs can, during their production, be filled in a controlled manner with metals (Cu, Ni) by means of a co-deposition process. In this way, nanostructural composite tubes (Me/C) and composite wires (C/Me) can be generated. Furthermore, the Carbon structures can subsequently be removed using an etching process, leaving metallic nanotubes or nanowires as the end product. A range of advantages with respect to mechanical stability, electrical conductivity, and optical properties, is expected to be demonstrated in these interesting materials. In this project proposal, the above mentioned possibilities for the controlled production of nanowires and nanotubes (composite, or purely metallic) are to be examined, and the range of parameters significant to their production identified. A parallel and fundamental characterisation of the structures produced, established by means of the combined use of a range of analytical methods, is to form the conclusion of the programme.