Low-temperature and anhydrous preparation of NixFey-LDHs as an efficient electrocatalyst for water and urea electrolysis
Oxygen evolution reaction (OER) and urea oxidation reaction (UOR) limit the efficiency of electrolytic water and urea oxidation to hydrogen formation processes, respectively. Here, a facile low-temperature anhydrous method was used to synthesize NixFey-LDHs catalysts with good eletrocatalytic activi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-02-01
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| Series: | Catalysis Communications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1566736721001138 |
| _version_ | 1819176339342622720 |
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| author | Xiaoke Li Xuejing Cui Luhua Jiang |
| author_facet | Xiaoke Li Xuejing Cui Luhua Jiang |
| author_sort | Xiaoke Li |
| collection | DOAJ |
| description | Oxygen evolution reaction (OER) and urea oxidation reaction (UOR) limit the efficiency of electrolytic water and urea oxidation to hydrogen formation processes, respectively. Here, a facile low-temperature anhydrous method was used to synthesize NixFey-LDHs catalysts with good eletrocatalytic activity for OER and UOR. With urea oxidation as an alternative anodic reaction, the anodic oxidation potential decreased significantly to 1.37 V@20 mA cm−2. The electrolyzer voltage decreased to only 1.41 V@10 mA cm−2 with the Ni9Fe1-LDHs anode. It was demonstrated that Fe induced the formation of Ni(III) on the surface and promoted the reversible Ni(II)/Ni(III) transition. |
| first_indexed | 2024-12-22T21:09:11Z |
| format | Article |
| id | doaj.art-f1a47cdce6904fdd9f10d7733b67833c |
| institution | Directory Open Access Journal |
| issn | 1873-3905 |
| language | English |
| last_indexed | 2024-12-22T21:09:11Z |
| publishDate | 2022-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Catalysis Communications |
| spelling | doaj.art-f1a47cdce6904fdd9f10d7733b67833c2022-12-21T18:12:36ZengElsevierCatalysis Communications1873-39052022-02-01162106390Low-temperature and anhydrous preparation of NixFey-LDHs as an efficient electrocatalyst for water and urea electrolysisXiaoke Li0Xuejing Cui1Luhua Jiang2Nanomaterials & Electrocatalysis Laboratory, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR ChinaNanomaterials & Electrocatalysis Laboratory, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR ChinaCorresponding author.; Nanomaterials & Electrocatalysis Laboratory, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR ChinaOxygen evolution reaction (OER) and urea oxidation reaction (UOR) limit the efficiency of electrolytic water and urea oxidation to hydrogen formation processes, respectively. Here, a facile low-temperature anhydrous method was used to synthesize NixFey-LDHs catalysts with good eletrocatalytic activity for OER and UOR. With urea oxidation as an alternative anodic reaction, the anodic oxidation potential decreased significantly to 1.37 V@20 mA cm−2. The electrolyzer voltage decreased to only 1.41 V@10 mA cm−2 with the Ni9Fe1-LDHs anode. It was demonstrated that Fe induced the formation of Ni(III) on the surface and promoted the reversible Ni(II)/Ni(III) transition.http://www.sciencedirect.com/science/article/pii/S1566736721001138Urea oxidation reactionOxygen evolution reactionLayered double hydroxideHydrogen production |
| spellingShingle | Xiaoke Li Xuejing Cui Luhua Jiang Low-temperature and anhydrous preparation of NixFey-LDHs as an efficient electrocatalyst for water and urea electrolysis Catalysis Communications Urea oxidation reaction Oxygen evolution reaction Layered double hydroxide Hydrogen production |
| title | Low-temperature and anhydrous preparation of NixFey-LDHs as an efficient electrocatalyst for water and urea electrolysis |
| title_full | Low-temperature and anhydrous preparation of NixFey-LDHs as an efficient electrocatalyst for water and urea electrolysis |
| title_fullStr | Low-temperature and anhydrous preparation of NixFey-LDHs as an efficient electrocatalyst for water and urea electrolysis |
| title_full_unstemmed | Low-temperature and anhydrous preparation of NixFey-LDHs as an efficient electrocatalyst for water and urea electrolysis |
| title_short | Low-temperature and anhydrous preparation of NixFey-LDHs as an efficient electrocatalyst for water and urea electrolysis |
| title_sort | low temperature and anhydrous preparation of nixfey ldhs as an efficient electrocatalyst for water and urea electrolysis |
| topic | Urea oxidation reaction Oxygen evolution reaction Layered double hydroxide Hydrogen production |
| url | http://www.sciencedirect.com/science/article/pii/S1566736721001138 |
| work_keys_str_mv | AT xiaokeli lowtemperatureandanhydrouspreparationofnixfeyldhsasanefficientelectrocatalystforwaterandureaelectrolysis AT xuejingcui lowtemperatureandanhydrouspreparationofnixfeyldhsasanefficientelectrocatalystforwaterandureaelectrolysis AT luhuajiang lowtemperatureandanhydrouspreparationofnixfeyldhsasanefficientelectrocatalystforwaterandureaelectrolysis |