Regensburg 2019 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 18: Poster Monday: Nanostructures
O 18.11: Poster
Montag, 1. April 2019, 17:45–20:00, Poster F
Tailor-made *meso to macro* porous CuNi films by electrodeposition: synthesis and application — •Jin Zhang1,2, Jordi Sort2,3, and Eva Pellicer2 — 1State Key laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China — 2Departament de Física, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain — 3ICREA, Pg. Lluís Companys 23, E-08010 Barcelona, Spain
Porous films with interconnected pores of different dimensions are attractive in many fields like catalysis, gas adsorption, or energy storage, etc. Template-assisted electrodeposition (ED) is very effective to fabricate porous films since meso- to macro-scale pores can be obtained by changing templates. In this talk, the production of macroporous CuNi films by hydrogen bubble-assisted ED is demonstrated. The synthetic approach results in porous films with highly interconnected nanodendritic walls[1]. Moreover, P123 tri-block copolymer is used for the ED of mesoporous CuNi films. Pores between 5 nm and 20 nm and dissimilar space arrangements are obtained depending on the parameters[2]. These meso- to macro-porous CuNi films exhibit enhanced electrocatalytic activity towards hydrogen evolution reaction. From a technological point of view, they can also be used as scaffold to host other functional materials that could bring hydrophilic/hydrophobic properties, electrical insulation or even enhanced mechanical performance.
[1] Nanoscale 2014, 6, 12490. [2] ACS Appl. Mater. Interfaces 2018, 10, 14877