{"title":"Fe-Sn-Co硫化物/氢氧异质结构电催化剂协同水裂解界面工程","authors":"Siyu Chen, Ting Zhang, Jingyi Han, Hui Qi, Shihui Jiao, Changmin Hou, Jingqi Guan","doi":"10.26599/nre.2023.9120106","DOIUrl":null,"url":null,"abstract":"To realize large-scale hydrogen production by electrolysis of water, it is essential to develop non-precious metal catalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). Here, we fabricate Sn-, Fe-, and Co-based sulfide/oxyhydroxide heterostructural catalyst on nickel foam (FeSnCo<sub>0.2</sub>S<em><sub>x</sub></em>O<sub><em>y</em></sub>/NF) by solvothermal method. The FeSnCo<sub>0.2</sub>S<em><sub>x</sub></em>O<em><sub>y</sub></em>/NF requires low overpotentials of 48 and 186 mV at 10 mA·cm<sup>–2</sup>, respectively, for HER and OER. When it is assembled into an electrolytic cell as a bifunctional electrocatalyst, it only needs 1.54 V to reach 10 mA·cm<sup>–2</sup>, far better than IrO<sub>2</sub>||Pt/C electrolyzer. The formation of sulfide/hydroxide heterostructural interfaces improves the electron transfer and reduces the reaction energy barrier, thus promoting the electrocatalytic processes.","PeriodicalId":489474,"journal":{"name":"Nano Research Energy","volume":"6 2","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Interface engineering of Fe-Sn-Co sulfide/oxyhydroxide heterostructural electrocatalyst for synergistic water splitting\",\"authors\":\"Siyu Chen, Ting Zhang, Jingyi Han, Hui Qi, Shihui Jiao, Changmin Hou, Jingqi Guan\",\"doi\":\"10.26599/nre.2023.9120106\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"To realize large-scale hydrogen production by electrolysis of water, it is essential to develop non-precious metal catalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). Here, we fabricate Sn-, Fe-, and Co-based sulfide/oxyhydroxide heterostructural catalyst on nickel foam (FeSnCo<sub>0.2</sub>S<em><sub>x</sub></em>O<sub><em>y</em></sub>/NF) by solvothermal method. The FeSnCo<sub>0.2</sub>S<em><sub>x</sub></em>O<em><sub>y</sub></em>/NF requires low overpotentials of 48 and 186 mV at 10 mA·cm<sup>–2</sup>, respectively, for HER and OER. When it is assembled into an electrolytic cell as a bifunctional electrocatalyst, it only needs 1.54 V to reach 10 mA·cm<sup>–2</sup>, far better than IrO<sub>2</sub>||Pt/C electrolyzer. The formation of sulfide/hydroxide heterostructural interfaces improves the electron transfer and reduces the reaction energy barrier, thus promoting the electrocatalytic processes.\",\"PeriodicalId\":489474,\"journal\":{\"name\":\"Nano Research Energy\",\"volume\":\"6 2\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nano Research Energy\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.26599/nre.2023.9120106\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano Research Energy","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.26599/nre.2023.9120106","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Interface engineering of Fe-Sn-Co sulfide/oxyhydroxide heterostructural electrocatalyst for synergistic water splitting
To realize large-scale hydrogen production by electrolysis of water, it is essential to develop non-precious metal catalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). Here, we fabricate Sn-, Fe-, and Co-based sulfide/oxyhydroxide heterostructural catalyst on nickel foam (FeSnCo0.2SxOy/NF) by solvothermal method. The FeSnCo0.2SxOy/NF requires low overpotentials of 48 and 186 mV at 10 mA·cm–2, respectively, for HER and OER. When it is assembled into an electrolytic cell as a bifunctional electrocatalyst, it only needs 1.54 V to reach 10 mA·cm–2, far better than IrO2||Pt/C electrolyzer. The formation of sulfide/hydroxide heterostructural interfaces improves the electron transfer and reduces the reaction energy barrier, thus promoting the electrocatalytic processes.
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