Green 수소 생산
그린수소의 생산 기술은 현재는 Alkaline Water Electrolysis (AWE)와 Polymer Electrolyte Membrane Water Electrolysis (PEMWE)가 주로 사용되고 있으며, 2025년부터 Anion Exchange Membrane Water Electrolysis (AEMWE)가 추가될 것으로 예상을 하고 있습니다.
AWE
| Alkaline Water Electrolysis AWE |
|---|
|
Cathode : Ni, Co or Fe
Anode : Ni |
|
Lye : 25-30% Potassium
Hydroxide solution in water |
| 100% Electrical power |
| 0.3 ~ 1.0 A/㎠ |
| Hydrogen |
| Up to 40 bar |
| ~80℃ |
AEM
| Anion Exchange Membrane / Alkaline Electrolyte Membrane AEM |
|---|
|
Cathode : Ni / Ni alloys
Anode : Fe, Ni, Co oxides |
| Anion Exchange ionomer(e.g. AS-4) |
| 100% Electrical power |
| 0.5 ~ 1.5 A/㎠ |
| Hydrogen |
| Up to 35 bar H2, 1 bar O2 |
| ~60℃ |
PEM
| Polymer Electrolyte Membrane / Proton Exchange Membrane PEM/PEMEC |
|---|
|
Cathode : Pt / Pd
Anode : IrO2 / RuO2 |
|
Fluoropolymer ionomer
(eg Nafion, a DuPont brand) |
| 100% Electrical power |
| Up to 3 A/㎠ |
| Hydrogen |
| Up to 40 bar |
| ~60℃ |