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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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用有机相还原法制备钴纳米颗粒
Keywords: 金属材料,纳米粒子,钴,原子力显微镜
Abstract:
？硼氢化钠在乙二醇的碱性溶液中比在水溶液中更稳定,使还原醋酸钴制备金属co纳米颗粒的反应平稳进行,制备出六方晶型的co纳米颗粒,平均粒径为50.2nm.原子力显微镜和激光散射分析表明,co纳米粒子为类球形.制备co纳米粒子的最佳温度为60℃,最佳ph为11~12.用不同种类的表面活性剂对co纳米颗粒进行表面修饰,能减少其在正己烷中的软团聚,以吸附作用为主的非离子表面活性剂的效果最佳,可以使团聚体的平均尺寸由80.0nm降低至50.2nm.
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