Results 81 to 90 of about 366,732 (353)

A Functional 2D Carbon Allotrope Combining Nanoporous Graphene and Biphenylene Segments

open access: yesAdvanced Materials, EarlyView.
The synthesis of a novel nanoporous graphene (NPG) is reported with biphenylene segments via thermal fusion of 12‐armchair porous graphene nanoribbons grown on gold surfaces. Characterization using STM, AFM, and DFT reveals low‐defect semiconducting behaviour and tunable band gaps.
Paula Angulo‐Portugal   +14 more
wiley   +1 more source

Internamentos por intoxicação com monóxido de carbono em Portugal.

open access: yesActa Médica Portuguesa, 2011
The prevalence of carbon monoxide intoxication in the World shows that this is a common situation. In Portugal, there are no concrete data available in literature and its incidence remains unknown.
Márcia Christel Sá   +2 more
doaj   +1 more source

The Tropospheric Lifetimes of Halocarbons and Their Reactions with OH Radicals: an Assessment Based on the Concentration of CO-14 [PDF]

open access: yes
Chemical reaction with hydroxyl radicals formed in the troposphere from ozone photolysis in the presence of methane, carbon monoxide and nitrogen oxides provides an important removal mechanism for halocarbons containing C-H and C = C double bonds.
Derwent, Richard G.   +1 more
core   +1 more source

Electrochemical Carbon Dioxide Reduction to Methanol on Copper‐Based Catalysts: Mechanistic Insights and Industrial Prospects

open access: yesAdvanced Materials, EarlyView.
This review presents a focused and integrated perspective on copper‐based catalysts for the selective electrochemical reduction of CO2 to methanol. It elucidates active site dynamics, mechanistic pathways, and structure–activity relationships, while connecting fundamental insights with catalyst design, reactor engineering, and techno‐economic ...
Debabrata Bagchi   +7 more
wiley   +1 more source

Excitation of the CO fourth positive band system by electron impact on carbon monoxide and carbon dioxide [PDF]

open access: yes
Excitation of carbon monoxide fourth positive band system by electron impact on carbon monoxide and carbon ...
Mumma, M. J., Stone, E. J., Zipf, E. C.
core   +1 more source

Carbon monoxide oxidation rates computed for automobile thermal reactor conditions [PDF]

open access: yes, 1972
Carbon monoxide oxidation rates in thermal reactors for exhaust manifolds are computed by integrating differential equations for system of twenty-nine reversible chemical reactions.
Bittker, D. A., Brokaw, R. S.
core   +1 more source

The orbital motion, absolute mass, and high-altitude winds of exoplanet HD209458b

open access: yes, 2010
For extrasolar planets discovered using the radial velocity method, the spectral characterization of the host star leads to a mass-estimate of the star and subsequently of the orbiting planet. In contrast, if also the orbital velocity of the planet would
Albrecht, Simon   +3 more
core   +1 more source

High‐Performance Zero‐Gap Glycerol‐Fed Electrolyzer for C3 Chemicals and Hydrogen Production

open access: yesAdvanced Materials, EarlyView.
This work presents a dynamic, self‐regulating operation strategy that enables selective glycerol electrooxidation in the OER‐free regime, co‐producing C3 chemicals and hydrogen at cell voltages below 1.25 V. Voltage‐ and temperature‐resolved analyses define optimal operating conditions, achieving a sustained current density of 500 mA cm−2 at ∼1.21 V ...
Shayan Angizi   +11 more
wiley   +1 more source

Carbon Monoxide as Indoor Pollutant in Kano Metropolis

open access: yesJournal of Applied Sciences and Environmental Management, 2010
The level of carbon monoxide concentrations in three different residential areas of Kano municipality has been determined. Health effects of carbon monoxide are not only determined by its pollution level, but the time spent breathing polluted air ...
JT Ayodele, AO Adekiya, I Yakubu
doaj   +1 more source

On-site manufacture of propellant oxygen from lunar resources [PDF]

open access: yes
The Aerojet Carbothermal Process for the manufacture of oxygen from lunar resources has three essential steps: the reduction of silicate with methane to form carbon monoxide and hydrogen; the reduction of carbon monoxide with hydrogen to form methane and
Rosenberg, Sanders D.
core   +1 more source

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