Atom probe tomography (APT) provides three-dimensional compositional mapping with sub-
nanometre resolution. The sensitivity of APT is in the range of parts per million for all …

Promoters are important in catalysis, but the atomistic details of their function and particularly
their role in reaction instabilities such as kinetic phase transitions and oscillations are often …

High electric fields promote ionization of water, yet relatively little is known about this topic
due to the difficulty of generating such fields. The high field capability of field emitter tips …

In compartmentalized systems, chemical reactions may proceed in differing ways even in
adjacent compartments. In compartmentalized nanosystems, the reaction behaviour may …

Atom probe tomography is a well-established analytical instrument for imaging the 3D
structure and composition of materials with high mass resolution, sub-nanometer spatial …

In heterogeneous catalysis research, the reactivity of individual nanofacets of single
particles is typically not resolved. We applied in situ field electron microscopy to the apex of …

Self-sustained oscillations in H2 oxidation on a Rh nanotip mimicking a single catalytic
nanoparticle were studied by in situ field emission microscopy (FEM). The observed spatio …

A comprehensive theory for the adsorption of H2 and O2 on a nanometric rhodium field
emitter tip is developed to describe the equilibrium properties, the adsorption− desorption …

Field ion microscopy combined with video techniques and chemical probing reveals the
existence of catalytic oscillatory patterns at the nanoscale. This is the case when a rhodium …

The catalytic CO oxidation reaction on stepped Rh surfaces in the 10− 6 mbar pressure
range was studied in situ on individual μm-sized high-Miller-index domains of a …