Results 51 to 60 of about 7,281 (303)

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

open access: yesAdvanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria   +6 more
wiley   +1 more source

Attrition-resistant Ni-Mg/Al2O3 catalyst for fluidized bed syngas methanation

open access: yes, 2015
Spray granulation was applied to prepare attrition-resistant Ni-Mg/Al2O3 catalysts for fluidized bed methanation. The tested binders included alumina sol (AS, pH = 4.0), acidic silica sol (SS, pH = 3.0), alumina-modified silica sol (AM, pH = 8.7) and ...
Xu, Guangwen   +4 more
core   +1 more source

De-oxygenation of CO2 by using Hydrogen, Carbon and Methane over Alumina-Supported Catalysts [PDF]

open access: yes, 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   +1 more source

Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics

open access: yesAdvanced Materials, EarlyView.
“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair   +3 more
wiley   +1 more source

Biological CO2-Methanation: An Approach to Standardization

open access: yesEnergies, 2019
Power-to-Methane as one part of Power-to-Gas has been recognized globally as one of the key elements for the transition towards a sustainable energy system.
Martin Thema   +17 more
doaj   +1 more source

Heat Recovery from a PtSNG Plant Coupled with Wind Energy

open access: yesEnergies, 2021
Power to substitute natural gas (PtSNG) is a promising technology to store intermittent renewable electricity as synthetic fuel. Power surplus on the electric grid is converted to hydrogen via water electrolysis and then to SNG via CO2 methanation.
Daniele Candelaresi   +3 more
doaj   +1 more source

Recent Progress in the Phase‐Controlled Synthesis of Ruthenium Nanocrystals for Catalytic Applications

open access: yesAdvanced Materials, EarlyView.
Template effect and kinetic control enable crystal‐phase engineering of Ru nanocrystals, granting access to either metastable fcc‐Ru or stable hcp‐Ru with distinct surface structures, thermal stabilities, and catalytic behaviors. Moreover, the hcp‐Ru can further serve as an epitaxial template to direct Pd and Rh nanocrystals into the metastable hcp ...
Jianlong He   +3 more
wiley   +1 more source

Three-Dimensional Computation Fluid Dynamics Simulation of CO Methanation Reactor with Immersed Tubes

open access: yesEnergies, 2022
CO methanation is an exothermic process, and heat removal is an essential issue for the methanation reactor. Numerical studies were carried out to investigate the performance of a 3D fluidized bed methanation reactor with immersed cooling tubes.
Liyan Sun   +4 more
doaj   +1 more source

Syngas methanation in fluidized bed for an advanced two-stage process of SNG production

open access: yes, 2016
Process simulation was conducted to identify the technical feasibility and optimal reactor combination for a simple two-stage methanation process producing substitute natural gas (SNG).
Xu, Guangwen   +5 more
core   +1 more source

Techno-economic assessment of product gas methanation system integrated in biogas plant : Comparative study between biological and catalytic methanation processes [PDF]

open access: yes, 2023
The thesis investigated the economics of the methanation process of the product gas of a 1 MW wood gasifier profitability in both biological and catalytic processes in a farm-scale biogas plant.
Haho, Oskari
core  

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