制氢
电解
质子交换膜燃料电池
聚合物电解质膜电解
高温电解
高压电解
电解水
氢
化学
电解法
环境科学
废物管理
材料科学
膜
工程类
电解质
有机化学
电极
物理化学
生物化学
作者
Elke Schropp,Felipe Campos-Carriedo,Diego Iribarren,Gabriel Naumann,Christian Immanuel Bernäcker,Matthias Gaderer,Javier Dufour
出处
期刊:Applied Energy
[Elsevier]
日期:2024-02-01
卷期号:356: 122247-122247
被引量:1
标识
DOI:10.1016/j.apenergy.2023.122247
摘要
The need to drastically reduce greenhouse gas emissions is driving the development of existing and new technologies to produce and use hydrogen. Anion exchange membrane electrolysis is one of these rapidly developing technologies and presents promising characteristics for efficient hydrogen production. However, the environmental performance and the material criticality of anion exchange membrane electrolysis must be assessed. In this work, prospective life cycle assessment and criticality assessment are applied, first, to identify environmental and material criticality hotspots within the production of anion exchange membrane electrolysis units and, second, to benchmark hydrogen production against proton exchange membrane electrolysis. From an environmental point of view, the catalyst spraying process heavily dominates the ozone depletion impact category, while the production of the membrane represents a hotspot in terms of the photochemical ozone formation potential. For the other categories, the environmental impacts are distributed across different components. The comparison of hydrogen production via anion exchange membrane electrolysis and proton exchange membrane electrolysis shows that both technologies involve a similar life-cycle environmental profile due to similar efficiencies and the leading role of electricity generation for the operation of electrolysis. Despite the fact that for proton exchange membrane electrolysis much less material is required due to a higher lifetime, anion exchange membrane electrolysis shows significantly lower raw material criticality since it does not rely on platinum-group metals. Overall, a promising environmental and material criticality performance of anion exchange membrane electrolysis for hydrogen production is concluded, subject to the expected technical progress for this technology.
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