Related Experiment Video
Updated: Oct 20, 2025

Applying Dynamic Strain on Thin Oxide Films Immobilized on a Pseudoelastic Nickel-Titanium Alloy
Published on: July 28, 2020
Stationary stripe patterns and chemical waves on the bimetallic Rh(110)/Ni surface during the H2 + O2 reaction
Mathias Homann1, Ronald Imbihl1
1Institut für Physikalische Chemie und Elektrochemie, Leibniz-Universität Hannover; Callinstrasse 3A, 30167 Hannover, Germany. Imbihl@pci.uni-hannover.de.
Abstract:
Chemical wave patterns that develop in the O2 + H2 reaction on a bimetallic Rh(110)/Ni surface have been studied with photoelectron emission microscopy (PEEM) in the 10-6 to 10-4 mbar range. The bifurcation diagram for Ni coverages up to 3 monolayers (ML) was mapped out for T = 770 K. Stationary concentration patterns of macroscopic stripes as well as target patterns and irregular chemical waves were observed.

