Combined near-ambient pressure photoelectron spectroscopy and temporal analysis of products study of CH4 oxidation on Pd/γ-Al2O3 catalysts

Ethanol Dehydrogenation: A Reaction Path Study by Means of Temporal Analysis of Products

“…The commercial TAP-KPC reactor system (Mithra Technologies, Inc., Foley, USA), which was used for the transient experiments in this paper and also the way the "thin-zone reactor" concept was established, is described in detail in Pasel et al [72]. For the TAP experiments, the micro-reactor contained 20 mg of the catalysts and the carbon black sample, respectively, with particle sizes between 200 µm and 400 µm.…”

“…These were either height-normalized or Ar-normalized. The way in which these normalizations and mass correction of the recorded time values used at the X-axis in all figures was performed is described in detail in a former publication by Pasel et al [72]. In addition, possible condensation products of acetaldehyde such as acetic acid (m/z = 60), butanol isomers (m/z = 56), diethyl ether (m/z = 59) or ethyl acetate (m/z = 70) were analyzed.…”

Aligning time-resolved kinetics (TAP) and surface spectroscopy (AP-XPS) for a more comprehensive understanding of ALD-derived 2D and 3D model catalysts

“…It can be surmised that combined, or at least quantitatively reconciled, TAP and AP-XPS experiments with complex reactive surfaces are an intriguing prospect with considerable potential for materials discovery and reactivity understanding. There have been several reports employing TAP in combination with so X-ray spectroscopic techniques [21][22][23] where spectroscopy has been used to characterize the limiting states of the catalyst surface. Quantitative time-resolved reconciliation has, to the best of our knowledge, not yet been fully demonstrated in the literature.…”