Results 151 to 160 of about 101,670 (302)

Multiple Active Sites Engineering in Cu/γ‐Al2O3 Catalyst Enables Selective Electrocatalytic CO2 Reduction to Methane at High Rates

open access: yesCarbon Energy, EarlyView.
A multi‐site heterogeneous electrocatalyst is designed, composed of Cu nanoclusters supported on γ‐Al2O3. Within this system, CO2 activation, H2O dissociation, and *CO protonation are respectively governed by the Cu sites, γ‐Al2O3 sites, and the Cu/γ‐Al2O3 interface sites.
Xiangke Zeng   +10 more
wiley   +1 more source

Functionalizing Conductive Diamond: Recent Advance in Fabrication, Modifications, and Applications

open access: yesCarbon Energy, EarlyView.
This review highlights recent advancements in the synthesis, modification, and electrochemical applications of conductive diamond, particularly boron‐doped diamond (BDD). It emphasizes progress in fabrication methods, including CVD and HPHT, and explores modifications such as doping, surface terminations, and composite design, enabling significant ...
Ning Linghu, Xin Jiang, Jing Xu
wiley   +1 more source

Alternative aircraft fuels technology [PDF]

open access: yes
NASA is studying the characteristics of future aircraft fuels produced from either petroleum or nonpetroleum sources such as oil shale or coal. These future hydrocarbon based fuels may have chemical and physical properties that are different from present
Grobman, J.
core   +1 more source

Spectroscopic Insights Into the Role of the Coverage of *CO and *H on Bifurcation of Ethylene and Ethanol Pathways in Carbon Dioxide Electroreduction

open access: yesCarbon Energy, EarlyView.
Zhao et al. control the coverage of *CO or *H intermediates by introducing foreign metal into Cu nanoparticles. The increased *CO coverage on Ag‐doped and Zn‐doped Cu promotes the generation of multi‐carbon products while the increased *H coverage of Co‐doped and Pd‐doped Cu enhances the selectivity of oxygenates. ABSTRACT As key reaction intermediates
Zi‐Hao Zhao   +3 more
wiley   +1 more source

Molecular Insights into the Adsorption of Deposit Control Additives from Hydrocarbon Fuels. [PDF]

open access: yesLangmuir
Corral-Casas C   +6 more
europepmc   +1 more source

A Methodology to Integrate Closed‐Cycle Heat Pumps into Batch Distillation Columns

open access: yesChemie Ingenieur Technik, EarlyView.
Batch distillation often cannot use vapor recompression due to contamination risks in food and pharma. This study proposes a design for integrating closed‐loop heat pumps using natural fluids. Results show significant energy savings, offering a sustainable alternative to traditional setups.
Philipp Dorn   +5 more
wiley   +1 more source

Impact of Distillation Column Design on Potential for the Integration of Mechanical Vapor Recompression

open access: yesChemie Ingenieur Technik, EarlyView.
Mechanical vapor recompression integration in distillation is analyzed, focusing on feed preheating and column pressure drop. Binary methanol–water and benzene–toluene separations are studied to identify optimal designs, which are further assessed in a bioethanol vacuum distillation sequence regarding energetic, ecological, and economic performance ...
Thorben Hochhaus   +3 more
wiley   +1 more source

Hydroprocessing of synthetic kerosene over a non‐sulphided Ni/Al2O3 catalyst: Impact of alcohols and ketones on alkene conversion

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Synthetic jet fuel containing non‐petroleum‐derived kerosene can be produced from synthetic kerosene obtained through processes that include a hydroprocessing step. The potential use of non‐sulphided (reduced) nickel supported on alumina (Ni/Al2O3) was evaluated as an alternative to sulphided catalysts to saturate alkenes in sulphur‐free ...
Garima Chauhan   +3 more
wiley   +1 more source

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