Results 31 to 40 of about 22,559 (231)

Room‐Temperature Gas‐Phase CO2‐to‐C3 Coupling by a 4f‐Aromatic Cluster

open access: yesAngewandte Chemie, EarlyView.
We engineered a 4f metalla aromatic cluster, PrB2C2−, that enables efficient sequential C−C coupling with CO2 at room temperature, yielding a linear C3 backbone. This system provides a complete theoretical catalytic cycle and establishes a new design principle for lanthanide mediated CO2 activation.
Feng‐Xiang Zhang   +7 more
wiley   +2 more sources

Exergy Analysis of a Process Converting Power and Biomass to a Liquid Fuel

open access: yesChemical Engineering Transactions, 2019
A power and biomass to liquid process (PBtL) via Fischer-Tropsch synthesis is exergetically analysed. Synthesis gas is generated through an entrained flow gasifier and extra hydrogen is produced through high temperature steam electrolysis in a solid ...
Mohammad Ostadi   +2 more
doaj   +1 more source

Spin‐State Modulation of Atomic Iron Sites Enables Efficient CO2 Electroreduction in Acid Medium

open access: yesAngewandte Chemie, EarlyView.
An axial oxygen ligand was added to shift the spin state of the single‐atom Fe site from low to medium spin. This change reduces the interfacial interaction with H3O+ and decreases the *CO desorption energy, thus enhancing CO2RR in acidic media.
Shanhe Gong   +13 more
wiley   +2 more sources

Olefine Production from Syngas over Bimetallic Supported

open access: yesEurasian Chemico-Technological Journal, 2000
Bimetallic cobalt-containing catalysts supported on alumina have been studied in the Fischer-Tropsch synthesis. It has been shown that a promotion of Co/Al2O3 by iridium leads to dispergation of both metals.
Sh. S. Itkulova, G. D. Zakumbaeva
doaj   +1 more source

Biomass steam gasification in fluidized bed of inert or catalytic particles: Comparison between experimental results and thermodynamic equilibrium predictions [PDF]

open access: yes, 2011
In order to improve the understanding of biomass gasification in a bed fluidized by steam, the thermochemical equilibrium of the reactive system was studied.
Andreux, Régis   +2 more
core   +2 more sources

Fischer–Tropsch Synthesis with Cu-Co Nanocatalysts Prepared Using Novel Inorganic Precursor Complex [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2018
The structural properties and activities of Cu-Co catalysts used in Fischer-Tropsch synthesis are explored according to their method of preparation. Impregnation, co-precipitation, and a novel method of thermal decomposition were applied to an inorganic ...
Javad Farzanfar, Ali Reza Rezvani
doaj  

Direct synthesis of extra-heavy olefins from carbon monoxide and water

open access: yesNature Communications, 2023
Fischer-Tropsch synthesis is challenged by the trade-off between enhancing C-C coupling and suppressing further hydrogenation of olefins. Here the authors break this challenge by developing a universal strategy to synthesis extra-heavy olefins from ...
Chuanhao Wang   +9 more
doaj   +1 more source

CO2 valorization: Production of Synthetic Gasoline and Diesel Fuel from Dry Reforming of Methane

open access: yesChemical Engineering Transactions, 2012
The purpose of this study is to illustrate the potential of dry reforming of methane for industrial applications by producing synthetic fuels from the combination of dry and steam reforming of methane.
H. Er-rbib, C. Bouallou, F. Werkoff
doaj   +1 more source

The Origin of Life [PDF]

open access: yes, 1974
The origin of life is in a sense a genetic problem, for, as H. J. Muller pointed out many years ago, the essential attribute that identifies living matter is its capacity to replicate itself and its variants (1). Because this uniquely biological property
Horowitz, N. H., Hubbard, Jerry S.
core   +1 more source

Efficient photosynthesis of carbon monoxide from CO2 using perovskite photovoltaics [PDF]

open access: yes, 2015
Artificial photosynthesis, mimicking nature in its efforts to store solar energy, has received considerable attention from the research community. Most of these attempts target the production of H2 as a fuel and our group recently demonstrated solar-to ...
Abate, A   +8 more
core   +1 more source

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