Operando Photoelectron Photoion Coincidence Spectroscopy to Detect Short-lived Intermediates in Catalysis.
Chimia (Aarau)
; 77(3): 132-138, 2023 Mar 29.
Article
in En
| MEDLINE
| ID: mdl-38047816
ABSTRACT
Understanding the reaction mechanism is critical yet challenging in heterogeneous catalysis. Reactive intermediates, e.g., radicals and ketenes, are short-lived and often evade detection. In this review, we summarize recent developments with operando photoelectron photoion coincidence (PEPICO) spectroscopy as a versatile tool capable of detecting elusive intermediates. PEPICO combines the advantages of mass spectrometry and the isomer-selectivity of threshold photoelectron spectroscopy. Recent applications of PEPICO in understanding catalyst synthesis and catalytic reaction mechanisms involving gaseous and surface-confined radical and ketene chemistry will be summarized.
Full text:
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Chimia (Aarau)
Year:
2023
Document type:
Article