搜索结果: 1-15 共查到“理学 methanol”相关记录26条 . 查询时间(0.11 秒)
As one of the most abundant organic compounds on the planet, methanol occurs naturally in the environment as plants release it as they grow and decompose. It is also found in the ocean, where it is a ...
Effect of ultrasonic irradiation and/or halogenation on the catalytic performance of γ-Al2O3 for methanol dehydration to dimethyl ethe
ultrasonication methanol DME &gamma -Al2O3 Cl F
2014/4/2
Dimethyl ether (DME) is amongst one of the most promising alternative, renewable and clean fuels being considered as a future energy carrier. In this study, the comparative catalytic performance of th...
Electrocatalytic performance of Pt/Ru/Sn/W fullerene electrode for methanol oxidation in direct methanol fuel cell
Pt/Ru/Sn/W nanoparticles fullerene methanol oxidation modified electrode
2014/4/8
In this work, fullerene was modified by platinum, ruthenium, tin and tungsten nanoparticles. The material was characterized by XRD, ICP-OES and TEM micrograph. The average nanoparticle size on fullere...
A 95 GHz Class I Methanol Maser Survey Toward GLIMPSE Extended Green Objects (EGOs)
Maser Survey GLIMPSE Extended Green Objects
2011/10/9
We report the results of a systematic survey for 95 GHz class I methanol masers towards a new sample of 192 massive young stellar object (MYSO) candidates associated with ongoing outflows (known as ex...
Bio-methanol from Bio-oil Reforming Syngas Using Dual-reactor
Bio-methanol Bio-syngas CuZnAlZr catalyst On-line syngas conditioning
2012/4/5
A dual-reactor, assembled with the on-line syngas conditioning and methanol synthesis, was successfully applied for high efficient conversion of rich CO2 bio-oil derived syngas to bio-methanol. In the...
Global distributions of methanol and formic acid retrieved for the first time from the IASI/MetOp thermal infrared sounder
formic acid the IASI/MetOp thermal infrared sounder
2011/2/24
Methanol (CH3OH) and formic acid (HCOOH) are among the most abundant volatile organic compounds present in the atmosphere. In this work, we derive the global distributions of these two organic species...
Discovery of the first methanol (CH3OH) maser in the Andromeda galaxy (M31)
the first methanol the Andromeda galaxy
2011/1/10
We present the first detection of a 6.7 GHz Class II methanol (CH3OH) maser in the Andromeda galaxy (M31). The CH3OH maser was found in a Very Large Array (VLA) survey during the fall of 2009. We have...
Flux estimates of isoprene, methanol and acetone from airborne PTR-MS measurements over the tropical rainforest during the GABRIEL 2005 campaign
Flux estimates isoprene methanol airborne PTR-MS tropical rainforest
2009/7/15
Tropical forests are a strong source of biogenic volatile organic compounds (BVOCs) to the atmosphere which can potentially impact the atmospheric oxidation capacity. Here we present airborne and grou...
Methanol dehydration reaction to produce clean diesel alternative dimethylether over mesoporous aluminosilicate-based catalysts
DME aluminosilicate silicotungstic acid methanol dehydration
2010/4/9
Due to its good burning characteristics and high cetane number, dimethylether (DME) is considered as a highly attractive and clean alternative to diesel fuel. This ether can be produced by methanol de...
Atmospheric methanol measurement using selective catalytic methanol to formaldehyde conversion
Atmospheric methanol selective catalytic methanol formaldehyde conversion
2009/2/18
A novel atmospheric methanol measurement technique, employing selective gas-phase catalytic conversion of methanol to formaldehyde followed by detection of the formaldehyde product, has been developed...
Sources and sinks of acetone, methanol, and acetaldehyde in North Atlantic marine air
sinks acetone methanol acetaldehyde North Atlantic marine air
2009/2/12
Measurements of acetone, methanol, acetaldehyde and a range of non-methane hydrocarbons have been made in North Atlantic marine air at the Mace Head observatory. Under maritime conditions the combina...
Oxygenated compounds in aged biomass burning plumes over the Eastern Mediterranean: evidence for strong secondary production of methanol and acetone
Oxygenated compounds Eastern Mediterranean methanol acetone
2009/1/23
Airborne measurements of acetone, methanol, PAN, acetonitrile (by Proton Transfer Reaction Mass Spectrometry), and CO (by Tunable Diode Laser Absorption Spectroscopy) have been performed during the Me...
The influence of biogenic emissions on upper-tropospheric methanol as revealed from space
biogenic emissions upper-tropospheric methanol
2008/12/29
The distribution and budget of oxygenated organic compounds in the atmosphere and their impact on tropospheric chemistry are still poorly constrained. Near-global space-borne measurements of seasonall...
A fate for organic acids, formaldehyde and methanol in cloud water: their biotransformation by micro-organisms
organic acids formaldehyde cloud water biotransformation micro-organisms
2008/12/16
The interactions between microbial and chemical contents of cloud water were investigated. First, we observe that the bulk cloud water solution provides a substantial environment where bacteria can de...
Cloud condensation nucleus (CCN) behavior of organic aerosol particles generated by atomization of water and methanol solutions
Cloud condensation nucleus organic aerosol particles atomization methanol
2008/12/11
Cloud condensation nucleus (CCN) experiments were carried out for malonic acid, succinic acid, oxalacetic acid, DL-malic acid, glutaric acid, DL-glutamic acid monohydrate, and adipic acid, using both ...