Tailored platinum-nickel nanostructures on zirconia developed by metal casting, internal oxidation and dealloying
Source abstract
Abstract
Abstract Noble-metal nanostructures are crucial, highly active materials in applications such as fuel cells, sensors, electrodes and catalysts. The present work shows a new and efficient method for the in-situ synthesis of platinum-nickel nanostructures on porous zirconia. Ni-Zr-Y metallic alloys with defined Zr/Y-ratios and small amounts of platinum are internally oxidized. An interpenetrating network of yttria-stabilized zirconia (YSZ) in pure nickel is formed. Dealloying of the nickel matrix generates a multimodal porous ceramic support structure with platinum-nickel nanostructures on the surface of the zirconia-ceramic with a broad spectrum for tailored functionality, for example in after-treatment of exhaust gases.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nanoporous metals and alloys · Electrocatalysts for Energy Conversion · Supercapacitor Materials and Fabrication
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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