| 形貌控制法合成一种新型的纤维状镍钴合金粉末前驱体(英文) |
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| 引用本文： | 湛菁,周涤非,张传福.形貌控制法合成一种新型的纤维状镍钴合金粉末前驱体(英文)[J].中国有色金属学会会刊,2011(3):544-551. |
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| 作者姓名： | 湛菁 周涤非 张传福 |
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| 作者单位： | 中南大学冶金科学与工程学院;中南大学粉末冶金国家重点实验室; |
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| 基金项目： | Project (20090162120080) supported by Doctoral Fund of Ministry of Education, China; Project (20070410989) supported by China Postdoctoral Science Foundation; Project(748310000) supported by Central South University Science Foundation for Youths, China |
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| 摘 要： | 通过选择性控制合成条件,制备一种新型的纤维状镍钴合金粉末前驱体。该前驱体中镍、钴摩尔配比精确。采用X-射线衍射仪(XRD)、扫描电镜(SEM)、红外光谱(FT-IR)和能谱(EDS)研究前驱体粉末的成分与形貌;考察溶液pH值、反应温度、金属离子浓度和表面活性剂对前驱体粉末的形貌和分散性的影响。结果表明:前驱体的形貌取决于前驱体中氨的含量,这种纤维状前驱体为一种复杂的含氨草酸镍钴复盐。形貌控制合成纤维状镍钴合金粉末前驱体的最佳条件为:氨作为配位剂和pH值调节剂,草酸为沉淀剂,反应温度为50～65°C,镍、钴离子总浓度为0.5～0.8mol/L,PVP为分散剂,溶液pH值控制在8.0～8.4.
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| 关 键 词： | 纤维状前驱体 镍钴合金粉 形貌控制合成 成分控制 生长机理 |
Shape-controlled synthesis of novel precursor for fibrous Ni-Co alloy powders |
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| ZHAN Jing,ZHOU Di-fei,ZHANG Chuan-fu . School of Metallurgical Science , Engineering,Central South University,Changsha ,China,. State Key Laboratory for Powder Metallurgy.Shape-controlled synthesis of novel precursor for fibrous Ni-Co alloy powders[J].Transactions of Nonferrous Metals Society of China,2011(3):544-551. |
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| Authors: | ZHAN Jing ZHOU Di-fei ZHANG Chuan-fu School of Metallurgical Science Engineering Central South University Changsha China State Key Laboratory for Powder Metallurgy |
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| Affiliation: | ZHAN Jing1,2,ZHOU Di-fei1,ZHANG Chuan-fu1 1. School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China,2. State Key Laboratory for Powder Metallurgy |
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| Abstract: | A novel precursor of nickel-cobalt alloy powders with an appropriate Ni to Co molar ratio was prepared under selectively synthetic conditions. The composition and morphology of the precursor were characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectrometry (FT-IR) and energy dispersive spectrometry (EDS). The effects of pH value, reaction temperature, metal ion concentrations and surfactant on the morphology and the dispersion of precursor were inv... |
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| Keywords: | fibrous precursor Ni-Co alloy powder shape-controlled synthesis composition control growth mechanism |
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