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Article: Solar-driven, highly sustained splitting of seawater into hydrogen and oxygen fuels

TitleSolar-driven, highly sustained splitting of seawater into hydrogen and oxygen fuels
Authors
KeywordsAnticorrosion
Electrocatalysis
Hydrogen production
Seawater splitting
Solar driven
Issue Date2019
Citation
Proceedings of the National Academy of Sciences of the United States of America, 2019, v. 116, n. 14, p. 6624-6629 How to Cite?
AbstractElectrolysis of water to generate hydrogen fuel is an attractive renewable energy storage technology. However, grid-scale freshwater electrolysis would put a heavy strain on vital water resources. Developing cheap electrocatalysts and electrodes that can sustain seawater splitting without chloride corrosion could address the water scarcity issue. Here we present a multilayer anode consisting of a nickel–iron hydroxide (NiFe) electrocatalyst layer uniformly coated on a nickel sulfide (NiSx) layer formed on porous Ni foam (NiFe/NiSx-Ni), affording superior catalytic activity and corrosion resistance in solar-driven alkaline seawater electrolysis operating at industrially required current densities (0.4 to 1 A/cm 2 ) over 1,000 h. A continuous, highly oxygen evolution reaction-active NiFe electrocatalyst layer drawing anodic currents toward water oxidation and an in situ-generated polyatomic sulfate and carbonate-rich passivating layers formed in the anode are responsible for chloride repelling and superior corrosion resistance of the salty-water-splitting anode.
Persistent Identifierhttp://hdl.handle.net/10722/334583
ISSN
2023 Impact Factor: 9.4
2023 SCImago Journal Rankings: 3.737
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorKuang, Yun-
dc.contributor.authorKenney, Michael J.-
dc.contributor.authorMeng, Yongtao-
dc.contributor.authorHung, Wei Hsuan-
dc.contributor.authorLiu, Yijin-
dc.contributor.authorHuang, Jianan Erick-
dc.contributor.authorPrasanna, Rohit-
dc.contributor.authorLi, Pengsong-
dc.contributor.authorLi, Yaping-
dc.contributor.authorWang, Lei-
dc.contributor.authorLin, Meng Chang-
dc.contributor.authorMcGehee, Michael D.-
dc.contributor.authorSun, Xiaoming-
dc.contributor.authorDai, Hongjie-
dc.date.accessioned2023-10-20T06:49:10Z-
dc.date.available2023-10-20T06:49:10Z-
dc.date.issued2019-
dc.identifier.citationProceedings of the National Academy of Sciences of the United States of America, 2019, v. 116, n. 14, p. 6624-6629-
dc.identifier.issn0027-8424-
dc.identifier.urihttp://hdl.handle.net/10722/334583-
dc.description.abstractElectrolysis of water to generate hydrogen fuel is an attractive renewable energy storage technology. However, grid-scale freshwater electrolysis would put a heavy strain on vital water resources. Developing cheap electrocatalysts and electrodes that can sustain seawater splitting without chloride corrosion could address the water scarcity issue. Here we present a multilayer anode consisting of a nickel–iron hydroxide (NiFe) electrocatalyst layer uniformly coated on a nickel sulfide (NiSx) layer formed on porous Ni foam (NiFe/NiSx-Ni), affording superior catalytic activity and corrosion resistance in solar-driven alkaline seawater electrolysis operating at industrially required current densities (0.4 to 1 A/cm 2 ) over 1,000 h. A continuous, highly oxygen evolution reaction-active NiFe electrocatalyst layer drawing anodic currents toward water oxidation and an in situ-generated polyatomic sulfate and carbonate-rich passivating layers formed in the anode are responsible for chloride repelling and superior corrosion resistance of the salty-water-splitting anode.-
dc.languageeng-
dc.relation.ispartofProceedings of the National Academy of Sciences of the United States of America-
dc.subjectAnticorrosion-
dc.subjectElectrocatalysis-
dc.subjectHydrogen production-
dc.subjectSeawater splitting-
dc.subjectSolar driven-
dc.titleSolar-driven, highly sustained splitting of seawater into hydrogen and oxygen fuels-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1073/pnas.1900556116-
dc.identifier.pmid30886092-
dc.identifier.scopuseid_2-s2.0-85064045164-
dc.identifier.volume116-
dc.identifier.issue14-
dc.identifier.spage6624-
dc.identifier.epage6629-
dc.identifier.eissn1091-6490-
dc.identifier.isiWOS:000463069900024-

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