The prominent infrared absorption band of solid CO – commonly observed towards young stellar objects (YSOs) – consists of three empirically determined components. The broad ‘red component’ (2136 cm−1, 4.681 μm) is generally attributed to solid CO mixed in a hydrogenbonded environment. Usually, CO embedded in the abundantly present water is considered. However, CO:H2O mixtures cannot reproduce t...

We present laboratory experiments on binary, layered ices comprised of benzene (C6H6) on methanol (CH3OH) and on diethyl ether (CH3CH2OCH2CH3). Temperature programmed desorption (TPD) and reflection-absorption infrared spectroscopy (RAIRS) have been used to investigate the growth mechanisms in these systems. Ab initio quantum chemical calculations on simple gas-phase model clusters are used to ...

The dynamics of an excess electron in size-selected methanol clusters is studied via pump-probe spectroscopy with resolution of approximately 120 fs. Following excitation, the excess electron undergoes internal conversion back to the ground state with lifetimes of 260-175 fs in (CH3OH)n- (n=145-535) and 280-230 fs in (CD3OD)n- (n=210-390), decreasing with increasing cluster size. The clusters t...

Context. The detection of a narrow SiO line emission toward the young shocks of the L1448-mm outflow has been interpreted as a signature of the magnetic precursor of C-shocks. In contrast with the very low SiO abundances (≤10−12) derived from the ambient gas, the narrow SiO emission in the precursor component at almost ambient velocities reveals enhanced SiO abundances of ∼10−11. This enhanceme...

A hybrid enzymatic/photocatalytic approach for the conversion of CO2 into methanol is described. For the approach discussed here, the production of one mol of CH3OH from CO2 requires three enzymes and the consumption of three mol of NADH. Regeneration of the cofactor NADH from NAD(+) was achieved by using visible-light-active, heterogeneous, TiO2-based photocatalysts. The efficiency of the rege...

A rapid compression machine (RCM) has been applied to measure the ignition delay times of NH3/CH3OH mixtures covering pressures 20 and 40 bar, equivalence ratios 0.5, 1.0 2.0, temperatures between 845 1100 K. The measurements show that become more reactive with increasing methanol addition. Addition merely 1% (molar basis) CH3OH NH3 lowers temperature around 100 K at bar in comparison pure NH3....

Catalytic hydrogenation is one of the most effective ways to convert CO2 high value-added chemicals, and it challenging improve catalytic activity product selectivity based on understanding catalysis mechanism process. In this work, organic phosphonic acid was innovatively employed tune single atom catalyst for methanol, effect fluoromethylphosphonic (FMPA) electronic structure molybdenum react...