نتایج جستجو برای: adsorption ch3oh

تعداد نتایج: 55518  

2003
J. K. Jørgensen M. R. Hogerheijde G. A. Blake E. F. van Dishoeck L. G. Mundy F. L. Schöier

This paper presents a detailed study of the chemistry in the outflow associated with the low-mass protostar NGC 1333–IRAS 2A down to 3′′ (650 AU) scales. Millimeter-wavelength aperture-synthesis observations from the Owens Valley and Berkeley-Illinois-Maryland-Association interferometers and (sub)millimeter single-dish observations from the Onsala Space Observatory 20 m telescope and Caltech Su...

2008
M. T. Beltrán A. Dutrey S. Guilloteau

We present high spatial resolution maps, obtained with the Plateau de Bure Interferometer, of the blue lobe of the L1157 outflow. We observed four lines at 3 mm, namely CH3OH (2K–1K), HC3N (11–10), HCN (1–0) and OCS (7–6). Moreover, the bright B1 clump has also been observed at better spatial resolution in CS (2–1), CH3OH (21– 11)A −, and SO (32–21). These high spatial resolution observations s...

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The reaction of gallium (III) nitrate octahydrate with the proton transfer compound (pydaH2)2+ (pydc)2– ( where  pyda  is 2,6-pyridinediamine and pydcH2 is 2,6-pyridinedicarboxylic acid) leads to the formation of (C5H8N3) [Ga(C7H3NO4)2] · 4H2O · CH3OH. The crystal system of the anionic complex is triclinic with space group Pī and two molecules per unit cell. The unit cell parameters are a=10.23...

Journal: :Atmospheric Chemistry and Physics 2022

Abstract. In this study, we present simultaneous airborne measurements of peroxyacetyl nitrate (PAN), ethane (C2H6), formic acid (HCOOH), methanol (CH3OH), and ethylene (C2H4) above the South Atlantic in September October 2019. Observations were obtained from Gimballed Limb Observer for Radiance Imaging Atmosphere (GLORIA), as two-dimensional altitude cross sections along flight path. The fligh...

Journal: :Nature Catalysis 2021

Catalysts respond to reactive atmospheres, leading intrinsically distinct active sites and reaction pathways in response pressure changes. The degree of gap depends on the nanostructure. Now, gaps discrepancies in-situ operando studies CO2-to-CH3OH using CuZn catalysts have been rationalized.

Journal: :Chinese Journal of Catalysis 2022

The hydrogenation of CO2 into methanol has attracted much attention and In2O3 is a promising catalyst. Introducing metal elements (M/In2O3) one the main strategies to improve its performance. However, mechanism active sites remain unclear need be further elucidated. Here, noble-metal-free Inx-Coy oxides catalysts were prepared. Much-improved performance obvious product selectivity shift observe...

2017
L. Moscadelli A. Sanna C. Goddi M. C. Walmsley R. Cesaroni A. Caratti o Garatti B. Stecklum K. M. Menten A. Kraus

Aims. Recently, substantial flaring in the 6.7 GHz methanol maser line has been observed toward the high-mass young stellar object (YSO) S255 NIRS 3, where an accretion burst was also detected in the IR. Our goal is to study the change in the properties of the 6.7 GHz masers between the preand outburst phases, and investigate the connection between the maser and the accretion burst. Methods. Wi...

2014
Matthias Weil Thomas Häusler

The title compound, catena-poly[[bis-(methanol-κO)nickel(II)]-di-μ-thio-cyanato-κ(4) N:S-mercurate(II)-di-μ-thio-cyanato-κ(4) N:S], was obtained from a gel-growth method using tetra-meth-oxy-silane as gelling agent. The crystal structure is composed of rather regular HgS4 tetra-hedra (point group symmetry .2.) and trans-NiN4O2 octa-hedra (point group symmetry 2..) that are linked through thio-c...

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