The application of multifunctional nanomaterials to complex problems in biomedicine and alternative energy is tempered by the challenges arising in the design of synthetic approaches to produce segmented surfaces –especially in the size range of ten nanometers. We expand upon a strategy that utilizes partially masked seed particles, restricting noble metal growth to a single side of the seed particles, to produce asymmetric segmented nanoparticles. This seeded-growth strategy was demonstrated with silica as a mask, directing the growth of Pt and Pd, yielding segmented Pt-Au, Pd-Au, and Pt-Pd-Au particles. Recent progress has expanded to include non-noble metal components, extending the impact of the mask assisted seeded growth approach.

Pt-Au and Pd-Au bimetallic heterostructures using mask assisted seeded growth

249th National Meeting (2015)

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