Seed-mediated co-reduction was originally developed to deposit alloyed shells onto shape-controlled monometallic nanocrystal seeds. Here, this technique is used to deposit alloy and intermetallic shells onto intermetallic seeds, creating nanostructures with highly strained surfaces on account of the lattice mismatch between the seeds and depositing compositions. The morphology of these core@shell nanoparticles also change as shell thickness is varied, demonstrating that seed-mediated co-reduction is a versatile method to achieve structures with different faceting and engineered surface strain. These particles were also evaluated as electrocatalysts for the oxygen reduction reaction, with their performance depending heavily on the shell composition and structure.<br/>

Seed-mediated co-reduction as a route to multi-metallic core@shell nanocatalysts

254th National Meeting (2017)

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