Results 101 to 110 of about 164,259 (298)

A metagenomic study of methanotrophic microorganisms in Coal Oil Point seep sediments

open access: yesBMC Microbiology, 2011
Background Methane oxidizing prokaryotes in marine sediments are believed to function as a methane filter reducing the oceanic contribution to the global methane emission.
Haverkamp Thomas HA   +4 more
doaj   +1 more source

Research and Development Study Related to the Synthesis of Formaldehyde from CO2 and H2 Quarterly Progress Report, Feb. - Apr. 1967 [PDF]

open access: yes
Oxidation of methane to formaldehyde in reactors coated with potassium ...
Budininkas, P.   +2 more
core   +1 more source

Heavy hydrogen in the stratosphere [PDF]

open access: yes, 2003
We report measurements of the deuterium content of molecular hydrogen (H2) obtained from a suite of air samples that were collected during a stratospheric balloon flight between 12 and 33 km at 40º N in October 2002. Strong deuterium enrichments of up to
Engel, Andreas   +2 more
core   +4 more sources

Stabilization of Single Metal Atoms on Graphitic Carbon Nitride: Synthetic Strategies and Emerging Applications

open access: yesAdvanced Science, EarlyView.
This review highlights recent advancements in stabilizing single metal atoms on graphitic carbon nitride emphasizing innovative synthesis strategies and emerging applications in electrocatalysis, photocatalysis and organic transformations, along with key challenges and future perspective. Abstract Emerging as a new frontier in catalysis science, single‐
Wenyao Zhang   +6 more
wiley   +1 more source

Research and development study related to the synthesis of formaldehyde from CO2 and H2 Quarterly progress report, Aug. - Oct. 1967 [PDF]

open access: yes
Air oxidation of methane to formaldehyde using gaseous nitric oxide catalyst with solid heated reaction beds - oxidation of methane with ozonized air over potassium tetraborate ...
Budininkas, P., Remus, G. A.
core   +1 more source

Production of hydrogen by unmixed steam reforming of methane [PDF]

open access: yes, 2008
Unmixed steam reforming is an alternative method of catalytic steam reforming that uses separate air and fuel–steam feeds, producing a reformate high in H2 content using a single reactor and a variety of fuels. It claims insensitivity to carbon formation
Dupont, V.   +4 more
core   +1 more source

Bioenergy Cropping Reduces the Spatiotemporal Scaling of Soil Bacterial Biodiversity

open access: yesAdvanced Science, EarlyView.
Consistent with patterns observed in plant and animal communities, soil bacterial communities exhibit significant species–time–area and phylogenetic–time–area relationships independent of nested structure. Bioenergy cropping significantly reduces the spatiotemporal scaling rates, particularly in sandy loam soils.
Zhencheng Ye   +19 more
wiley   +1 more source

Simulation of hydrogen production for mobile fuel cell applications via autothermal reforming of methane [PDF]

open access: yes, 2006
This paper presents a simulation of catalytic autothermal reforming (ATR) of methane (CH4) for hydrogen (H2) production. ATR is essentially an oxidative steam reforming, which combines the exothermic partial oxidation (PO) with the endothermic steam ...
Abd. Hamid, Mohd. Kamaruddin   +3 more
core  

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

open access: yesAdvanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas   +6 more
wiley   +1 more source

Simulation study on catalytic oxidation of low concentration mine gas in an oxidation device

open access: yesScientific Reports
Anthropogenic emissions of non-CO2 greenhouse gases, such as low-concentration coal mine methane (cCH4 
Yuhang Liu   +6 more
doaj   +1 more source

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