462071 Titanium-Based, Hierarchical, Flow-through Catalyst for Water Electrolysis Fabricated Via a Combination of Additive Manufacturing and Anodization
A titanium-based catalyst was fabricated via combining 3D printing and in-situ anodization in order to grow highly-ordered TiO2 nanotubes (NTs) onto a microporous 3D Ti-metal base as current collector. The performance of the reported 3D Ti/TiO2 electrocatalyst was tested for hydrogen-evolution reaction (HER) via water electrolysis.
The proposed electroatalyst features the following advantages: (1) the fabrication method for the 3D Ti/TiO2 composite is simple and scalable; (2) the 3D Ti/TiO2 composite features a flow-through architecture that not only enables more efficient utilization of the surface area of the catalyst but that could enable large-scale, continuous-flow hydrogen-production reactor technologies; and (3) minimization of electrical resistance between active surface area (TiO2 NTs) and current collector.
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