Xuejiao Sun , Lei Yang , Dongmei Li , Zhongzhen Tian
{"title":"具有混合配体的 Co/Ni-MOFs 的合成及其氧进化反应 (OER) 性能","authors":"Xuejiao Sun , Lei Yang , Dongmei Li , Zhongzhen Tian","doi":"10.1016/j.molstruc.2024.140549","DOIUrl":null,"url":null,"abstract":"<div><div>Two new transition metal–organic framework (MOF) complexes, Co-MOF (C<sub>28</sub>H<sub>17</sub>CoN<sub>6</sub>O<sub>9</sub>S<sub>2</sub>) and Ni-MOF (C<sub>28</sub>H<sub>6</sub>NNi<sub>8</sub>O<sub>2</sub>S<sub>0.06</sub>), were synthesized using a hydrothermal method. Upon characterization and analysis, Co-MOF and Ni-MOF showed similar structures, in which Co<sup>2+</sup> or Ni<sup>2+</sup> coordinated with two pyridine-2,6-dicarboxylic acid ligands to form octahedral geometric configurations, which in turn formed one-dimensional layered structure, while Py<sub>2</sub>TTz ligands existed between these layers to enlarge the pore size of MOFs. Co-MOF showed superior performance than Ni-MOF in the OER process, with a low overpotential (227 mV) and Tafel slope (51.4 mV dec<sup>‑1</sup>) at 10 mA cm<sup>-2</sup> current density. This work provided new insight into designing transition MOFs for electrocatalytic water splitting.</div></div>","PeriodicalId":16414,"journal":{"name":"Journal of Molecular Structure","volume":"1322 ","pages":"Article 140549"},"PeriodicalIF":4.0000,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis of Co/Ni-MOFs with mixed ligands and their Oxygen Evolution Reaction (OER) performance\",\"authors\":\"Xuejiao Sun , Lei Yang , Dongmei Li , Zhongzhen Tian\",\"doi\":\"10.1016/j.molstruc.2024.140549\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Two new transition metal–organic framework (MOF) complexes, Co-MOF (C<sub>28</sub>H<sub>17</sub>CoN<sub>6</sub>O<sub>9</sub>S<sub>2</sub>) and Ni-MOF (C<sub>28</sub>H<sub>6</sub>NNi<sub>8</sub>O<sub>2</sub>S<sub>0.06</sub>), were synthesized using a hydrothermal method. Upon characterization and analysis, Co-MOF and Ni-MOF showed similar structures, in which Co<sup>2+</sup> or Ni<sup>2+</sup> coordinated with two pyridine-2,6-dicarboxylic acid ligands to form octahedral geometric configurations, which in turn formed one-dimensional layered structure, while Py<sub>2</sub>TTz ligands existed between these layers to enlarge the pore size of MOFs. Co-MOF showed superior performance than Ni-MOF in the OER process, with a low overpotential (227 mV) and Tafel slope (51.4 mV dec<sup>‑1</sup>) at 10 mA cm<sup>-2</sup> current density. This work provided new insight into designing transition MOFs for electrocatalytic water splitting.</div></div>\",\"PeriodicalId\":16414,\"journal\":{\"name\":\"Journal of Molecular Structure\",\"volume\":\"1322 \",\"pages\":\"Article 140549\"},\"PeriodicalIF\":4.0000,\"publicationDate\":\"2024-11-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Molecular Structure\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022286024030576\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Molecular Structure","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022286024030576","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Synthesis of Co/Ni-MOFs with mixed ligands and their Oxygen Evolution Reaction (OER) performance
Two new transition metal–organic framework (MOF) complexes, Co-MOF (C28H17CoN6O9S2) and Ni-MOF (C28H6NNi8O2S0.06), were synthesized using a hydrothermal method. Upon characterization and analysis, Co-MOF and Ni-MOF showed similar structures, in which Co2+ or Ni2+ coordinated with two pyridine-2,6-dicarboxylic acid ligands to form octahedral geometric configurations, which in turn formed one-dimensional layered structure, while Py2TTz ligands existed between these layers to enlarge the pore size of MOFs. Co-MOF showed superior performance than Ni-MOF in the OER process, with a low overpotential (227 mV) and Tafel slope (51.4 mV dec‑1) at 10 mA cm-2 current density. This work provided new insight into designing transition MOFs for electrocatalytic water splitting.
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