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| Facile Synthesis and Sodium Storage Performance of N,Se-Co-doped Carbon Restricted NiSe Nanocrystalline Through a Two Step Direct Solid State Reaction |
| Author Name | Affiliation | E-mail | | WANG Zhuang-Zhuang | Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China | | | LIU Sang-Xin | Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China | | | HOU Qi-Rui | Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China | | | ZHANG Li-Cui | Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China | | | ZHANG An-Ping | Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China | | | WU Ping | Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China | | | ZHU Xiao-Shu | Centre for Analysis and Testing, Nanjing Normal University, Nanjing 210023, China | | | WEI Shao-Hua | Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China | | | ZHOU Yi-Ming | Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China | zhouyiming@njnu.edu.cn |
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| Abstract: In this work, a very simple and cost-effective two-step solid state reaction method for the preparation of NiSe nanocrystalline restricted within N,Se-codoped carbon scaffold was presented. By directly grinding nickel acetate tetrahydrate, o-vanillin and o-phenylenediamine together with a molar ratio of 1:2:1 at room temperature, a self -assembly solid state reaction took place to give rise to a bis-Schiff base complex with Ni(Ⅱ). After subsequent annealing at 700℃ in the presence of selenium powder, simultaneous carbonization and selenization occurred, resulting in the in -situ formation of NiSe nanocrystalline (~100 nm) confined within an irregular N,Se-codoped carbon scaffold (denoted as NiSe⊂NSeC). By means of X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS) and thermogravimetric analysis (TGA), the phase, morphology, composition and mass content for the NiSe ⊂ NSeC composite were identified. Its electrochemical sodium storage performance was tested by cyclic voltammetry, constant current charge and discharge cycling process, and electrochemical impedance spectrum. When tested as an anode material for sodium-ion batteries (SIBs), the NiSe⊂NSeC composite exhibited an impressive electrochemical sodium storage performance in terms of long-term cycling stability (291 mAh·g-1 of charging capacity after 100 cycles at 0.1 A·g-1, with a 88% of charging capacity retention compared with the first cycle) and excellent rate capability (197 mAh·g-1 of charging capacity at 5 A·g-1). |
| Keywords: NiSe nanocrystalline carbon N,Se-codoping composite two step solid-state reaction anode material sodium-ion batteries |
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| WANG Zhuang-Zhuang,LIU Sang-Xin,HOU Qi-Rui,ZHANG Li-Cui,ZHANG An-Ping,WU Ping,ZHU Xiao-Shu,WEI Shao-Hua,ZHOU Yi-Ming.Facile Synthesis and Sodium Storage Performance of N,Se-Co-doped Carbon Restricted NiSe Nanocrystalline Through a Two Step Direct Solid State Reaction[J].Chinese Journal of Inorganic Chemistry,2020,36(8):1524-1534. |
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