Abstract
The ability to tune the synergistic properties of heterogeneous catalysts by manipulating the surface composition, structure, and morphology is critical for achieving the desired catalytic performance, especially for metal and alloy catalysts at the nanoscale sizes. However, the control of the surface composition, structure, and morphology of nanocatalysts is challenging due to the highly dynamic nature of atoms on the surface or in the bulk phase of the metal or alloy nanomaterials. This chapter focuses on discussing recent findings of the investigations of the composition, structure, and morphology of metal and alloy nanoparticle catalysts, especially those involving dynamic core–shell and alloy structures. Insights into the structural synergies of their catalytic and electrocatalytic properties in reactions such as oxygen reduction reaction and hydrocarbon oxidation reaction. The development of active, stable, and low-cost heterogeneous catalysts for these reactions will contribute to the global drive to sustainable energy and environment.
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Acknowledgements
This work was supported by National Science Foundation (CHE 1566283) and the Department of Energy – Basic Energy Sciences (DE-SC0006877). The authors also thank all collaborators for their contributions, especially Valeri Petkov, to the in-situ/operando studies.
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Wu, ZP. et al. (2021). Multimetallic Catalysts and Electrocatalysts: Dynamic Core–Shell Nanostructures. In: Yamashita, H., Li, H. (eds) Core-Shell and Yolk-Shell Nanocatalysts. Nanostructure Science and Technology. Springer, Singapore. https://doi.org/10.1007/978-981-16-0463-8_5
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DOI: https://doi.org/10.1007/978-981-16-0463-8_5
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