Super-resolution imaging of molecular adsorption on single metal nanoparticles

ORAL  · Invited

Abstract

This talk will first give a brief introduction to the single-molecule fluorescence approaches to image catalytic reactions on single metal nanoparticles at super-optical resolution. It will present applications of such approaches to map the adsorption affinity of nonfluorescent reactants that can be converted into fluorescent products. It will then describe the development of a new approach, called COMPEITS, for super-resolution imaging of nonfluorescent processes on catalyst particles, as well as its application to study ligand adsorption on single metal nanoparticles, including the discovery of positive and negative adsorption cooperativity and adsorption crossover between different particle facets.

*We thank the financial support from the US Department of Energy, Office of Science, Office of Basic Energy Sciences, Catalysis Science program, under award DE-SC0004911 and the Army Research Office under grant no. W911NF-17-1-0590.

Publication: • P. Chen*, X. Zhou, N. M. Andoy, K.-S. Han, E. Choudhary, N. Zou, G. Chen, H. Shen "Spatiotemporal Catalytic Dynamics within Single Nanocatalysts Revealed by Single-Molecule Microscopy" Chem. Soc. Rev. 2014, 43, 1107-1117.
• X. Mao, C. Liu, M. Hesari, N. Zou, P. Chen* "Super-resolution imaging of nonfluorescent reactions via competition" Nature Chem. 2019, 11, 687-694.
• R. Ye,† M. Zhao,† X. Mao, Z. Wang, D. A. Garzon, H. Pu, Z. Zhao, P. Chen* "Nanoscale cooperative adsorption for materials control" Nature Commun. 2021, 12, 4287.

Presenters

  • Peng Chen

    • Cornell University

Authors

  • Peng Chen

    • Cornell University