Nanostructures and nanostructured materials have gained increasing attention over the last decades due to their unique properties and promising applications in future key technologies. Among the multitude of fabrication techniques for nanomaterials, electroless deposition provides high versatility and good control in terms of material and substrate choice, while remaining simple and inexpensive in operation and cost.[1] Possible materials that can be plated range from the iron-group (Fe, Co, Ni) and more noble metals (e.g. Cu, Pt, Pd) to select main group elements (e.g. Bi, Pb).[1], [2] Interesting combinations of these materials can be obtained, for example, by simultaneous or consecutive deposition or even the combination with other wet-chemical techniques such as electroplating and galvanic exchange reactions.   
In this poster presentation, we showcase the flexibility of the aforementioned wet-chemical approaches in the fabrication of multi-metallic nanotubes and networks, using ion-track etched polymer membranes. Here, it is possible to create both alloyed materials, as demonstrated on CoNiB, as well as multi-layered structures as shown for CoNiB/Cu and NiB/PtIr. Such structures are interesting for both chemical applications like catalysis as well as spintronics and microelectronics.[3], [4]
The aim of the presented poster is to give an overview over the various possibilities provided by these surprisingly simple, yet powerful wet-chemical processes.  

[1]    F. Muench, “Electroless Plating of Metal Nanomaterials,” ChemElectroChem, pp. 1–21, 2021.
[2]    M. C. Scheuerlein and W. Ensinger, “Development of a nanoscale electroless plating procedure for bismuth and its application in template-assisted nanotube fabrication,” RSC Adv., vol. 11, no. 15, pp. 8636–8642, 2021.
[3]    M. Staňo et al., “Flux-closure domains in high aspect ratio electroless-deposited CoNiB nanotubes,” SciPost Phys., vol. 5, no. 4, 2018.
[4]    T. Boettcher et al., “Electrodeposition of palladium-dotted nickel nanowire networks as a robust self-supported methanol electrooxidation catalyst,” J. Mater. Sci., vol. 56, no. 22, pp. 12620–12633, 2021.