Results 21 to 30 of about 171,990 (332)

Silicon electrowinning by molten salts electrolysis

open access: yesFrontiers in Chemistry, 2023
Electrochemically produced Si in molten salts can be used to fabricate electronic and photovoltaic devices. The major factors influencing the structure and morphology of Si deposits are electrolyte composition, applied current densities and ...
Sai Krishna Padamata   +2 more
doaj   +1 more source

Fabrication of bifunctional membrane electrode assemblies for unitised regenerative polymer electrolyte fuel cells [PDF]

open access: yes, 2006
Bifunctional membrane electrode assemblies have been fabricated using a screen printing technique, which demonstrate a repeatable and stable operation to cell current and voltages.
Harrison, DJ, Pettersson, J, Ramsey, BJ
core   +1 more source

Lanthanides extraction processes in molten fluoride media. Application to nuclear spent fuel reprocessing [PDF]

open access: yes, 2009
This paper describes four techniques of extraction of lanthanides elements (Ln) from molten salts in the general frame of reprocessing nuclear wastes; One of them is chemical: the precipitation of Ln ions in insoluble compounds (oxides or oxifluorides);
Cassayre, Laurent   +5 more
core   +2 more sources

Hydrogen production by alkaline water electrolysis

open access: yesQuímica Nova, 2013
Water electrolysis is one of the simplest methods used for hydrogen production. It has the advantage of being able to produce hydrogen using only renewable energy.
Diogo M. F. Santos   +2 more
doaj   +1 more source

Silicon recovery from silicon-iron alloys by electrorefining in molten fluorides [PDF]

open access: yes, 2013
Electrorefining of a silicon-iron material (Si-4.7at%Fe) in molten NaF-KF at 850°C has been investigated in view of recovering pure Si, using electrochemical techniques, SEM-EDS and ICP-AES analyses.
Bieber, Anne-Laure   +5 more
core   +4 more sources

Hydrogen Production System Using Non-Thermal Plasma Electrolysis in Glycerol-KOH Solution

open access: yesInternational Journal of Technology, 2014
Hydrogen is one of chemical industry feedstock and automobile fuel, which is commonly produced by electrolysis. Electrolysis, however, has several constraints that are primarily due to its large energy requirement.
Nelson Saksono   +2 more
doaj   +1 more source

Voltage Optimization in MV Network with Distributed Generation Using Power Consumption Control in Electrolysis Installations

open access: yesEnergies, 2021
Connecting a large number of distributed sources to the medium and low voltage grid poses many problems. The most important of these are the voltage changes inside the network, what can be observed when the power flow from these sources towards the HV/MV
Paweł Pijarski, Piotr Kacejko
doaj   +1 more source

Self-sustainable protonic ceramic electrochemical cells using a triple conducting electrode for hydrogen and power production. [PDF]

open access: yes, 2020
The protonic ceramic electrochemical cell (PCEC) is an emerging and attractive technology that converts energy between power and hydrogen using solid oxide proton conductors at intermediate temperatures.
Bian, Wenjuan   +10 more
core   +1 more source

New insight into 4-nitrobenzene diazonium reduction process: Evidence for a grafting step distinct from NO2 electrochemical reactivity [PDF]

open access: yes, 2012
Electrochemical and spectroscopic investigations were performed in order to clarify the mechanism of 4-nitrobenzene diazonium reduction on glassy carbon in protic medium.
Evrard, David   +2 more
core   +3 more sources

Fuelling the future: Assessing multifuel filling stations for hydrogen and other renewable fuels through life cycle analysis

open access: yesEnergy Science & Engineering, 2023
Hydrogen could play an important role in reducing the climate impact of the transport sector. This study explores the possibility of using existing biomethane infrastructure to enable the accelerated roll‐out of hydrogen as a transport fuel in a Swedish ...
Anders Hjort   +9 more
doaj   +1 more source

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