Journal
APPLIED SURFACE SCIENCE
Volume 568, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2021.150965
Keywords
Seawater splitting; Oxygen evolution reaction; Electrocatalyst; Layered double hydroxide; Sulfidation
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Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT and Future Planning [2018R1D1A1A02085938]
- National Research Foundation of Korea [2018R1D1A1A02085938] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The research demonstrates that sulfur-incorporated nickel-iron layered double hydroxide can serve as an effective catalyst for seawater oxidation, showing high catalytic activity and corrosion resistance.
Given the abundance of water on the surface of the Earth, water splitting using seawater may be an effective solution to the future energy crisis. However, oxygen evolution reaction (OER) electrocatalysts require several specific characteristics to be used in seawater electrolysis, such as high catalytic activity, selectivity, and resistivity against chlorine corrosion. This paper reports that sulfur incorporation into nickel-iron layered double hydroxide (NiFe-LDH-S) can fulfill the abovementioned requirements for seawater oxidation. Sulfidation was performed on NiFe-LDH nanosheets homogeneously grown on a porous carbon scaffold via a facile chemical vapor deposition (CVD) process. The best NiFe-LDH-S sample demonstrated excellent catalytic activity with a high corrosion resistance for seawater oxidation.
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