Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
High-resolution XPS spectra of (a) C1s, (b) Au4f, and (c) S2p core level of the different modified electrode designs as indicated and in different situations: before and after electrode immersion into a Cu ions solution and after performing Square wave voltammetry (SWV) measurements.
