Structure sensitive reactions over Co, Fe and mixed metal clusters in zeolites. Annual technical progress report

摘要

Transient and steady state kinetic studies of structure sensitive reactions of cyclopropane (c-C(sub 3)H(sub 6)) and hydrogen over zeolites is the first area of this studied. Low level impurity Fe(sup 3+) ions in zeolites complicate interpretation of spectroscopic and catalytic studies of these systems. We focused our efforts on selectively substituting Fe(sup 3+) ions in the frameworks of various zeolites to understand their role in catalytic reactions such as with c-C(sub 3)H(sub 6) and H(sub 2). These studies led to isomorphous substitution of other ions like B(sup 3+) and their use in isomerization of n-butenes to isobutylene. The third area of research involves the synthesis, characterization and catalysis of a new class of molecular sieve manganese oxide tunnel structure materials.