Direct Electrolytic Splitting of Seawater: Opportunities and Challenges
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Abstract
Hot, coastal, hyper-arid regions with intense solar irradiation and strong on- and off-shore wind patterns are ideal locations for the production of renewable electricity using wind turbines or photovoltaics. Given ample access to seawater and scarce freshwater resources, such regions make the direct and selective electrolytic splitting of seawater into molecular hydrogen and oxygen a potentially attractive technology. The key catalytic challenge consists of the competition between anodic chlorine chemistry and the oxygen evolution reaction (OER). This Perspective addresses some aspects related to direct seawater electrolyzers equipped with selective OER and hydrogen evolution reaction (HER) electrocatalysts.…
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1,179
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- 19.52
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Authors
4Topics & keywords
Topics
Keywords
- Oxygen evolution
- Seawater
- Electrolysis
- Electrolysis of water
- Hydrogen production
- Environmental science
- Renewable energy
- Water splitting
UN Sustainable Development Goals
- Affordable and clean energy
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