In situ lattice tuning of quasi-single-crystal surfaces for continuous electrochemical modulation

Chem Sci. 2022 May 19;13(26):7765-7772. doi: 10.1039/d2sc01868c. eCollection 2022 Jul 6.


The ability to control the atomic-level structure of a solid represents a straightforward strategy for fabricating high-performance catalysts and semiconductor materials. Herein we explore the capability of the mechanically controllable surface strain method in adjusting the surface structure of a gold film. Underpotential deposition measurements provide a quantitative and ultrasensitive approach for monitoring the evolution of surface structures. The electrochemical activities of the quasi-single-crystalline gold films are enhanced productively by controlling the surface tension, resulting in a more positive potential for copper deposition. Our method provides an effective way to tune the atom arrangement of solid surfaces with sub-angstrom precision and to achieve a reduction in power consumption, which has vast applications in electrocatalysis, molecular electronics, and materials science.

PMID:35865890 | PMC:PMC9258404 | DOI:10.1039/d2sc01868c


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