Results 81 to 90 of about 481,445 (303)

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

open access: yesAdvanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari   +4 more
wiley   +1 more source

Recent Developments in Mems-Based Micro Fuel Cells [PDF]

open access: yes, 2006
Micro fuel cells ($\mu$-FC) represent promising power sources for portable applications. Today, one of the technological ways to make $\mu$-FC is to have recourse to standard microfabrication techniques used in the fabrication of micro electromechanical ...
Gauthier-Manuel, B., Pichonat, T.
core   +4 more sources

Stoma‐Shell Nanoarchitecture for Enhanced Plasma Confinement Catalysis in Synthesis of Ethanol from CO2

open access: yesAdvanced Functional Materials, EarlyView.
High‐energy electron impact in plasma catalysis often causes excessive dissociation of active intermediates, limiting C2+ product selectivity. To address this challenge, a bio‐inspired stoma‐shell nanoarchitecture is designed to decouple electron impact from catalytic reaction zones.
Nan Zou   +5 more
wiley   +1 more source

Energy technology complexes as regulators of electrical power systems

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2019
The aim of the work is to study the processes of electrothermal gasification of solid fuels in energy technological complexes and to assess the possibilities of using energy technological complexes for regulating load schedules of electric power systems.
V. V. Afanasyev   +2 more
doaj   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

open access: yesAdvanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado   +6 more
wiley   +1 more source

Improvement of the Ecological Efficiency of Synthetic Motor Fuel Production in Ukraine

open access: yesЖурнал інженерних наук
Solving the problem of improving energy security is one of Ukraine’s challenges in modern conditions. One of the ways to solve this problem is to organize the production of synthetic motor fuel from the available domestic carbon-containing raw materials.
Ihor Shulga   +3 more
doaj   +1 more source

Stirling material technology [PDF]

open access: yes
The Stirling engine is an external combustion engine that offers the advantage of high fuel economy, low emissions, low noise, and low vibrations compared to current internal combustion automotive engines.
Scheuermann, C. M.   +2 more
core   +1 more source

Catalysis of the electrochemical reduction of oxygen by bacteria isolated from electro-active biofilms formed in seawater [PDF]

open access: yes, 2011
Biofilmsformed in aerobic seawater on stainless steel are known to be efficient catalysts of the electrochemicalreduction of oxygen. Based on their genomic analysis, seven bacterial isolates were selected and a cyclic voltammetry (CV) procedure was ...
Bergel, Alain   +7 more
core   +2 more sources

Approaches to The Establishment Of Safety Conditions For The Fuel-Containing Materials During New Safe Confinement Operation

open access: yesNuclear and Radiation Safety, 2019
Construction of the New Safe Confinement (NSC) above the Shelter over destroyed Chornobyl NPP Unit 4 has been completed. The NSC design is based on boundary conditions for current and potential hazardous impacts of the Shelter. Accordingly, criteria for Shelter safe state have to be established, in particular, criteria for the safe state of fuel ...
D. Bielykh   +7 more
openaire   +2 more sources

Tuning the Selectivity of the CO2 Reduction Reaction by Means of Synergistic Interactions in the Cu, Ag, Ce System

open access: yesAdvanced Functional Materials, EarlyView.
Multi‐metal Cu─Ce─Ag nanoparticles harness synergistic interactions to drive efficient electrochemical CO2 reduction reaction toward C2+ products at high current densities. Ag enhances CO production, Ce modulates Cu oxidation states, and together they boost *CO coverage and local pH to enhance C─C coupling, enabling record C2+ yields with suppressed ...
Nini Zhang   +9 more
wiley   +1 more source

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