Methane activation and partial oxidation on free gold and palladium clusters: Mechanistic insights into cooperative and highly selective cluster catalysis

2011 ◽  
Vol 152 ◽  
pp. 337 ◽  
Author(s):  
Sandra M. Lang ◽  
Thorsten M. Bernhardt
Keyword(s):  
Partial Oxidation ◽  
Methane Activation ◽  
Palladium Clusters ◽  
Free Gold

Methane activation by ZSM-5-supported transition metal centers

2021 ◽  
Author(s):  
Daniyal Kiani ◽  
Sagar Sourav ◽  
Yadan Tang ◽  
Jonas Baltrusaitis ◽  
Israel E. Wachs
Keyword(s):  
Transition Metal ◽  
Methane Activation ◽  
Group V ◽  
Metal Centers ◽  
Methane Dehydroaromatization

The literature on methane dehydroaromatization (MDA) to benzene using ZSM-5 supported, group V–VIII transition metal-based catalysts (MOx/ZSM-5) is critically reviewed with a focus on in situ and operando molecular insights.

TREATABILITY OF 2,4-D PRODUCTION WASTEWATERS

1994 ◽  
Vol 30 (3) ◽  
pp. 73-78 ◽  
Author(s):  
O. Tünay ◽  
S. Erden ◽  
D. Orhon ◽  
I. Kabdasli
Keyword(s):  
Hydrogen Peroxide ◽  
Activated Sludge ◽  
Partial Oxidation ◽  
Chloride Concentration ◽  
Chemical Oxidation ◽  
Cod Removal ◽  
Optimum Conditions ◽  
Organic Loading ◽  
Activated Sludge System ◽  
Biological Treatability

This study evaluates the characterization and treatability of 2,4-D production wastewaters. Wastewaters contain 20000-40000 mg/l COD, 17000-30000 mg/l chloride and pH is around 1.0. Chemical oxidation with hydrogen peroxide provided almost complete COD removal. The optimum conditions are 3:1 H2O2/COD oxidant dosage, 3000 mg/l Fe3+ as catalyst and pH 3. Partial oxidation at 0.5:1 H2O2//COD ratio is also effective providing 67% COD removal. A batch activated sludge system is used for biological treatability. Dilution is needed to maintain a tolerable chloride concentration which increases through COD removal. pH also increased during COD removal. 85% COD removal is obtained for the 50% dilution at an organic loading of 0.3 day‒1 on a COD basis. Completely and partially oxidized wastewaters are also treated in the activated sludge down to 30 mg/l BOD5.

Application of new Ru (II) pyridine‐based complexes in the partial oxidation of n‐ octane

2019 ◽  
Vol 34 (2) ◽  
Author(s):  
Revana Chanerika ◽  
Holger B. Friedrich ◽  
Mzamo L. Shozi
Keyword(s):  
Partial Oxidation

Investigations of the stability of palladium clusters supported on gold

2005 ◽  
Vol 597 (1-3) ◽  
pp. 127-132 ◽  
Author(s):  
J. Meier ◽  
H. Kleine ◽  
U. Stimming
Keyword(s):  
Palladium Clusters ◽  
The Stability
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