Speciation of Cu-Oxo Clusters in Ferrierite for Selective Oxidation of Methane to Methanol
Source abstract
Abstract
Cu-oxo nanoclusters in Cu-exchanged zeolites oxidize methane to methanol via a three-step process. Cu-exchanged ferrierite shows high reactivity to this selective oxidation at both ambient and elevated methane pressures. The active sites are dimeric Cu clusters located in the eight-membered channels of ferrierite, containing two oxygen atoms with different reactivities. Combining in situ ultraviolet–visible (UV–vis), X-ray absorption spectroscopy (XAS), and Raman spectroscopy, it is shown that the active site is a [Cu2O2]2+ cluster stabilized at pairs of negatively charged aluminum oxygen tetrahedra. This cluster is able to oxidize up to two methane molecules at elevated methane chemical potential.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Catalytic Processes in Materials Science · Catalysts for Methane Reforming · Catalysis and Oxidation Reactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, 85748 Garching, Germany
Institute for Integrated Catalysis, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States
Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, Getreidemarkt 9/166, Vienna 1060, Austria
Funding
Technische Universit?t M?nchen · Deutsche Forschungsgemeinschaft
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