Methanol oxidation on Au(332): methyl formate selectivity and surface deactivation under isothermal conditions
نویسندگان
چکیده
Surface deactivation for partial methanol oxidation to methyl formate on Au(332) under oxygen-deficient conditions at low temperatures suggests a small number of highly active sites formation.
منابع مشابه
Selective oxidation of methanol to form dimethoxymethane and methyl formate over a monolayer V2O5/TiO2 catalyst
The oxidation of methanol over highly dispersed vanadia supported on TiO2 (anatase) has been investigated using in situ Fourier transform infrared spectroscopy (FTIR), near ambient pressure X-ray photoelectron spectroscopy (NAP XPS), X-ray absorption near-edge structure (XANES), and a temperature-programmed reaction technique. The data were complemented by kinetic measurements collected in a fl...
متن کاملKinetic Modeling of Methyl Formate Oxidation
A kinetic model for methyl formate oxidation is generated using our open-source Reaction Mechanism Generator (RMG) software, supplemented with high level quantum calculations and transition state theory (TST). New rate coefficients are calculated for the decomposition pathways of methyl formate, methoxy-formyl (CH3OC ·O), and formyloxy-methyl (C H2OCHO), and hydrogen abstractions from methyl fo...
متن کاملSelective oxidation of methanol to dimethoxymethane under mild conditions over V2O5/TiO2 with enhanced surface acidity.
Dimethoxymethane was synthesized from the direct oxidation of methanol with high conversion and selectivity over specially designed bifunctional V(2)O(5)/TiO2 catalysts with redox and enhanced acidic character, in which the surface acidity played an essential role for inhibiting the formation of formaldehyde through the enhanced condensation reaction of formaldehyde with methanol to produce dim...
متن کاملStructures and properties of zirconia-supported ruthenium oxide catalysts for the selective oxidation of methanol to methyl formate.
The effects of RuO(x) structure on the selective oxidation of methanol to methyl formate (MF) at low temperatures were examined on ZrO(2)-supported RuO(x) catalysts with a range of Ru surface densities (0.2-3.8 Ru/nm(2)). Their structure was characterized using complementary methods (X-ray diffraction, Raman and X-ray photoelectron spectra, and reduction dynamics). The structure and reactivity ...
متن کاملMicrobial growth on C-1 compounds. 6. Oxidation of methanol, formaldehyde and formate by methanol-grown Pseudomonas AM-1.
Several studies have been made of the oxidation of C, compounds by micro-organisms grown on such compounds as sole source of carbon. In some cases, rather different results have been obtained by different workers. Kaneda & Roxburgh (1959) obtained evidence for an NAD+-linked methanol dehydrogenase in methanol-grown Pseudomonas PRL-W 4, whereas neither Harrington & Kallio (1960) nor Anthony & Za...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Catalysis Science & Technology
سال: 2022
ISSN: ['2044-4761', '2044-4753']
DOI: https://doi.org/10.1039/d1cy02034j