Figure 2.
Wide scan XPS of (a) GNS and (b) GNS-PDA, C 1s core-level spectra of (c) GNS and (d) GNS-PDA. (e) Surface element compositions of GNS and GNS-PDA as determined from by XPS results.
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.