Scheme 1.
Generic representations of: (a) HAT where the H is transferred along with its electron, and (b) PCET, where the proton H+ and electron (e−) are transferred to different locations.
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.