Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
The selective oxidation of methane to methanol, using H
2
O
2
generated
in situ
from H
2
and O
2
has been investigated using a series of TS-1 supported bimetallic palladium-based catalysts. The alloying of Pd with Au exhibited improved performance compared to monometallic Pd analogues, with the optimal AuPd catalyst stable over multiple uses. Complementary studies into catalytic performance towards the direct synthesis and subsequent degradation of H
2
O
2
indicated that catalysts that offered moderate activity toward H
2
O
2
synthesis and degradation were the most active for CH
4
oxidation, balancing the high activity of the Pd-only formulation, with the greater selectivity of the Au-only analogue. In particular, the ability of Au to promote the release of oxygen-based radical species from catalytic surfaces is considered to be crucial in achieving improved reactivity, compared to monometallic Pd analogues. The alloying of Pd with more abundant secondary metals was also explored with the NiPd/TS-1 catalyst exhibiting comparable activity to the AuPd analogue. However, unlike over AuPd/TS-1, where methanol is the primary product, the production of formic acid was found to be favoured by the NiPd/TS-1 catalyst.
The selective oxidation of methane to methanol, using
in situ
generated H
2
O
2
has been investigated using a series of TS-1 supported palladium-based catalysts, with the introduction of Au or Ni considerably improving catalytic performance.
Sprache
–
Identifikatoren
ISSN: 2044-4753
eISSN: 2044-4761
DOI: 10.1039/d3cy00116d
Titel-ID: cdi_rsc_primary_d3cy00116d
Format
–
Weiterführende Literatur
Empfehlungen zum selben Thema automatisch vorgeschlagen von bX