New analytical tools for advanced mechanistic studies in catalysis: photoionization and photoelectron photoion coincidence spectroscopy

P Hemberger, JA van Bokhoven… - Catalysis Science & …, 2020 - pubs.rsc.org
What are the reaction mechanisms responsible for the selective product formation in
catalysis? How can we identify the reactive intermediates steering the reaction towards the …

Photoion Mass-Selected Threshold Photoelectron Spectroscopy to Detect Reactive Intermediates in Catalysis: From Instrumentation and Examples to Peculiarities …

P Hemberger, Z Pan, X Wu, Z Zhang… - The Journal of …, 2023 - ACS Publications
Photoion mass-selected threshold photoelectron spectroscopy (ms-TPES) is a synchrotron-
based, universal, sensitive, and multiplexed detection tool applied in the areas of catalysis …

Elucidation of radical-and oxygenate-driven paths in zeolite-catalysed conversion of methanol and methyl chloride to hydrocarbons

A Cesarini, S Mitchell, G Zichittella, M Agrachev… - Nature …, 2022 - nature.com
Understanding hydrocarbon generation in the zeolite-catalysed conversions of methanol
and methyl chloride requires advanced spectroscopic approaches to distinguish the …

[HTML][HTML] Understanding the mechanism of catalytic fast pyrolysis by unveiling reactive intermediates in heterogeneous catalysis

P Hemberger, VBF Custodis, A Bodi, T Gerber… - Nature …, 2017 - nature.com
Catalytic fast pyrolysis is a promising way to convert lignin into fine chemicals and fuels, but
current approaches lack selectivity and yield unsatisfactory conversion. Understanding the …

Photoelectron photoion coincidence spectroscopy provides mechanistic insights in fuel synthesis and conversion

P Hemberger, A Bodi, T Bierkandt, M Köhler… - Energy & …, 2021 - ACS Publications
Clean combustion, ie, the reduction of NOx and soot emissions, and carbon neutrality,
achieved in part by biofuel synthesis, are major milestones in the transition to a sustainable …

[HTML][HTML] CRF-PEPICO: Double velocity map imaging photoelectron photoion coincidence spectroscopy for reaction kinetics studies

B Sztáray, K Voronova, KG Torma, KJ Covert… - The Journal of …, 2017 - pubs.aip.org
Photoelectron photoion coincidence (PEPICO) spectroscopy could become a powerful tool
for the time-resolved study of multi-channel gas phase chemical reactions. Toward this goal …

DELICIOUS III: A multipurpose double imaging particle coincidence spectrometer for gas phase vacuum ultraviolet photodynamics studies

GA Garcia, BK Cunha de Miranda, M Tia… - Review of Scientific …, 2013 - pubs.aip.org
We present a versatile double imaging particle coincidence spectrometer operating in fully
continuous mode, named DELICIOUS III, which combines a velocity map imaging device …

Continuous pyrolysis microreactors: Hot sources with little cooling? New insights utilizing cation velocity map imaging and threshold photoelectron spectroscopy

P Hemberger, X Wu, Z Pan, A Bodi - The Journal of Physical …, 2022 - ACS Publications
Resistively heated silicon carbide microreactors are widely applied as continuous sources to
selectively prepare elusive and reactive intermediates with astrochemical, catalytic, or …

Advances in threshold photoelectron spectroscopy (TPES) and threshold photoelectron photoion coincidence (TPEPICO)

T Baer, RP Tuckett - Physical Chemistry Chemical Physics, 2017 - pubs.rsc.org
The history and evolution of molecular threshold photoelectron spectroscopy and threshold
photoelectron photoion coincidence spectroscopy (TPEPICO) over the last fifty years are …

A new double imaging velocity focusing coincidence experiment: i2PEPICO

A Bodi, P Hemberger, T Gerber… - Review of Scientific …, 2012 - pubs.aip.org
The vacuum ultraviolet (VUV) beamline of the Swiss Light Source has been upgraded after
two years of operation. A new, turntable-type monochromator was constructed at the Paul …