Partial oxidation of methane over SSZ-39 zeolites containing iron, copper, and iron-copper mixtures with hydrogen peroxide: selective control of oxygenate formation.

ABSTRACT: Here iron and copper containing zeolites are reported for the liquid phase oxidation of methane to methanol using hydrogen peroxide (H₂O₂) as an oxidant. Iron-exchanged SSZ-39 favors formic acid formation while Fe, Cu-SSZ-39 samples with low iron contents shift the selectivity towards methanol with no observable formic acid formation. It was also observed that how the metals are loaded into the zeolite is integral to their catalytic performance. A two-step method wherein iron-exchanged SSZ-39 had copper added to it (Cu/Al = 0.196 and Fe/Al = 0.07) showed promising results compared to other approaches of loading both metals, resulting in a methanol production rate of 5.4 mmol (g_cat ^-1 h^-1) after one hour of reaction time. Interestingly,

SUBMITTER: Pokhrel J 

PROVIDER: S-EPMC12645279 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature