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.
(a) Microscopic picture of the platinum electrodes with different diameters. The white arrows denote the active area of the working electrodes. (b, c) Scanning electron micrographs of a 25 μm-diameter electrode (b) and 5 μm-diameter electrode (c) modified by Pt black. (d) Magnified cauliflower-like structure of the Pt black surface. (b, c, d) Picture: D. Mathys, Centre of Microscopy (ZMB), University of Basel Klingelbergstrasse 50/70, CH-4056 Basel.
