Results 81 to 90 of about 6,546,850 (243)
Advanced Science, EarlyView.A new data‐efficient framework combining DFT calculations, a neural network model, and automated graph analysis of catalytic reaction networks is proposed and applied to CO2 hydrogenation on transition metal nanoparticles. The analysis shows how efficient C2 oxygenate production requires a balance between CHx formation, C–C coupling, protonation, and ...
Mikhail V. Polynski, Sergey M. Kozlov
wiley +1 more source
Advanced Science, EarlyView.Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais +32 more
wiley +1 more source
De-oxygenation of CO2 by using Hydrogen, Carbon and Methane over Alumina-Supported Catalysts [PDF]
, 2012 The de-oxygenation of CO2 was explored by using hydrogen, methane, carbon etc., over alumina supported catalysts. The alumina-supported ruthenium, rhodium, platinum, molybdenum, vanadium and magnesium catalysts were first reduced in hydrogen atmosphere ...
Raskar, R.Y. +5 more
core +2 more sources
The Effect Of Catalyst Support On The Decomposition Of Methane To Hydrogen And Carbon. [PDF]
, 2004 Decomposition of methane into carbon and hydrogen over Cu/Ni supported catalysts was investigated. The catalytic activities and the lifetimes of the catalysts were studied. Cu/Ni supported on Ti02 showed high activity and long lifetime for the reaction.
Sharif Zein, Sharif Hussein +1 more
core +1 more source
Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction
Advanced Science, EarlyView.Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen +5 more
wiley +1 more source
Methane emission rate studies in a northern West Virginia mine [PDF]
"Methane emission rates were studied in a Pittsburgh coalbed mine in northern West Virginia. A fullface boring-type continuous miner, equipped with a methane monitor, was used in the development of a set of eight main headings, one side of which was near
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Ferroelectric Catalysts in the Hydrogen Evolution Reaction: A Perspective
Advanced Science, EarlyView.This perspective summarizes recent advances in ferroelectric (FE) catalysts for the hydrogen evolution reaction (HER). It first introduces HER fundamentals and FE mechanisms, then classifies FE catalysts into single‐phase, single‐atom‐modified, heterostructured, and other engineered types, with representative examples.
Rongxuan Lu +6 more
wiley +1 more source
A comparison of technical and environmental merits of producing bio-ethanol and bio-methane from waste paper sludge [PDF]
, 2012 Includes bibliographical references.The pressing need for alternative methods of waste management in developing countries has led to increased interest in energy recovery from waste.
Dalwai, Ilhaam
core +1 more source
Evaluation of Methane Production of Six Varieties of Date Pulp Waste (Phoenix Dactylifera L.)
Chemical Engineering Transactions, 2018 Anaerobic digestion is the biodegradation of the waste materials with the aid of microorganisms which grow in the absence of oxygen. Fruits and vegetable wastes are a good substrate with potential to produce biomethane and are abundantly available.
Ikbel Souli +5 more
doaj +1 more source
Climate Change Policy and the Adoption of Methane Digesters on Livestock Operations [PDF]
Methane digesters—biogas recovery systems that use methane from manure to generate electricity—have not been widely adopted in the United States because costs have exceeded benefits to operators.
Key, Nigel D., Sneeringer, Stacy E.
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