A new 3D 8-fold interpenetrating 66-dia topological Co-MOF: Syntheses, crystal structure, magnetic properties and electrocatalytic hydrogen evolution reaction
| Autor: | Zheng-Fang Tian, Wen-Wen Dong, Meng-Yue Jiang, Ya-Pan Wu, Yi-Cheng Zhou, Dongsheng Li, Jun Zhao |
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| Rok vydání: | 2019 |
| Předmět: |
Solvent system
Tafel equation Materials science Exchange current density 02 engineering and technology Crystal structure 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Topology 01 natural sciences 0104 chemical sciences Electronic Optical and Magnetic Materials Ion Inorganic Chemistry Materials Chemistry Ceramics and Composites Antiferromagnetism Metal-organic framework Hydrogen evolution Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | Journal of Solid State Chemistry. 279:120929 |
| ISSN: | 0022-4596 |
| Popis: | It still remains a tremendous challenge in exploring high efficient electrocatalysts for hydrogen evolution reaction (HER). Herein, reaction of Co2+ ions and 3-(pyrid-4′-yl)-5 -(4″- carbonylphenyl) -1,2,4-triazolyl (H2Pycz) in a mixed solvent system has obtained a new 3D metal organic framework (MOF) formulated as Co2(Hpycz)4·H2O (1). Compound 1 shows a 3D 8-fold interpenetrating 66-dia topological network with antiferromagnetic interactions between the Co(II) ions. The obtained Co-MOF exhibits a good HER performance: it displays a low onset potential of 101 mV, a small Tafel slope of 121 mV dec−1, exchange current density of 1.62 × 10−4 A cm−2 and long term stability of at least 72 h. This work may enrich the new candidates of MOFs materials for HER application. |
| Databáze: | OpenAIRE |
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