Radiation chemical studies in zeolites : radical cations and zeolite catalysis.

Journal Article · Thu Jan 01 04:00:00 EST 1998 · Radiat. Phys. Chem.

DOI:https://doi.org/10.1016/S0969-806X(97)00113-8· OSTI ID:937970

Werst, D W; Han, P; Trifunac, A D

The constrained spaces within zeolites offer unique opportunities for chemical reaction control of very reactive intermediates. Here we review studies which illustrate the use of EPR detection of paramagnetic species following radiolysis of guest molecules in zeolites to gain new insights into reactions of organic radical cations. The radiolysis/EPR technique is also a valuable method to study catalytic transformations on acidic zeolites. In essence, radiolysis is used to spin label products of catalysis in order that they may be detected and identified by EPR. Several examples are presented to show that application at low temperatures makes the radiolysis/EPR method a promising new in situ spectroscopy for elucidating mechanisms in zeolite catalysis.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: ER
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 937970
• Report Number(s): ANL/CHM/JA-24950
• Journal Information: Radiat. Phys. Chem., Journal Name: Radiat. Phys. Chem. Journal Issue: 3 ; 1998 Vol. 51
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
CATALYSIS
CATIONS
CHEMICAL REACTION KINETICS
DETECTION
ELECTRON SPIN RESONANCE
RADICALS
RADIOLYSIS
ZEOLITES