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gptkbp:instanceOf
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gptkb:Electrolyser
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gptkbp:advantage
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Low cost
Slower response time
Long lifetime
Lower current density
Sensitive to impurities
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gptkbp:alternativeTo
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gptkb:PEM_Electrolyser
Solid Oxide Electrolyser
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gptkbp:anodeMaterial
|
Nickel
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gptkbp:application
|
Renewable energy storage
Power-to-gas
Industrial hydrogen production
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gptkbp:cathodeMaterial
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Nickel
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gptkbp:cellVoltage
|
1.8-2.4 V
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gptkbp:commercialUse
|
1890s
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gptkbp:commonElectrolyte
|
gptkb:Potassium_hydroxide
gptkb:Sodium_hydroxide
|
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gptkbp:developmentType
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Commercially available
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gptkbp:effect
|
60-80%
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gptkbp:electrolyteType
|
Alkaline solution
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gptkbp:environmentalImpact
|
Depends on electricity source
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gptkbp:hydrogenPurity
|
99.5-99.9%
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gptkbp:lifespan
|
>60,000 hours
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gptkbp:location
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Worldwide
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gptkbp:maintenance
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Low
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gptkbp:market
|
Largest among electrolysers (as of 2023)
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gptkbp:membraneType
|
Diaphragm
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gptkbp:minimumPressure
|
1-30 bar
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gptkbp:notableBrand
|
gptkb:Cummins
gptkb:Thyssenkrupp
Hydrogenics
McPhy
NEL Hydrogen
|
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gptkbp:notRecommendedFor
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Dynamic operation
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gptkbp:operatingSystem
|
60-80°C
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gptkbp:powerSource
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gptkb:Electricity
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gptkbp:product
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gptkb:Oxygen
gptkb:Hydrogen
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gptkbp:reactionEquation
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2H2O(l) + 2e- → H2(g) + 2OH-(aq) (cathode)
2OH-(aq) → 1/2O2(g) + H2O(l) + 2e- (anode)
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gptkbp:safetyConsideration
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Corrosive electrolyte
Hydrogen handling
|
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gptkbp:size
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High
|
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gptkbp:stackConfiguration
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Modular
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gptkbp:suitableFor
|
Large-scale hydrogen production
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gptkbp:technology
|
Mature
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gptkbp:usedFor
|
Hydrogen production
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gptkbp:bfsParent
|
gptkb:AEM_Electrolyser
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gptkbp:bfsLayer
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8
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|
https://www.w3.org/2000/01/rdf-schema#label
|
Alkaline Electrolyser
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