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| Preparation and Structure Characterization of Ni Nanoparticles Prepared in the Medium Containing [Bmim]NTf2 Ionic Liquids |
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Received:October 28, 2010
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| DOI：DOI：10.3969/j.issn.1007-7545.2011.03.002 |
| KeyWord:Ionic liquids；[Bmim]NTf2；Ni nanoparticles；Preparation |
| Author | Institution |
| SU Yong-qing |
云南师范大学化学化工学院 |
| YANG Ming-di |
云南师范大学化学化工学院 |
| WANG Ying-zhen |
昆明学院化学科学与技术系 |
| LI Cong |
云南师范大学化学化工学院 |
| WANG Hong |
云南师范大学化学化工学院 |
| CAI Ying |
云南师范大学化学化工学院 |
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| Abstract: |
| Black crystal Ni nanoparticles were prepared by reducing Ni2 in the reducing solution of pH11 hydrazine hydrate-sodium carbonate containing 1-butyl-3-meth-ylimidazolium bis (trifluoromethanesulfonyl) imide ([Bmim]NTf2) ionic liquids. The structure and morphology of Ni nanoparticles were characterized by XRD and TEM respectively and the thermostability by TG and DTA. The results showed that Ni nanoparticles were irregular globoid and their size distributed in a narrow range of 3~32 nm in diameter. They were crystals with face-centered lattice cube. In reducing process, the ionic liquids were not only reactive media but also modifiers. They formed a modifying layer in the surface of Ni nanoparticles to stabilize the size of the nanoparticles and hold back congregating among nanoparticles and also to increase the thermostability of the nanoparticles. |
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