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中文摘要：
研究了强静磁场对溶剂热合成纳米Bi形态的影响。实验中选用乙二醇或乙二醇与乙醇的混合液作溶剂、硝酸铋作铋源。结果表明，磁场能促进Bi纳米呈各向异性生长，并诱导合成纳米线。随着磁场强度的提高，产物中纳米线的比例逐步增大；反应温度越高，产物中获得全部纳米线所对应的磁场强度越低；在150℃、磁场强度达到12T时，产物中没有得到全部纳米线，在180℃和210℃时，产物中全部纳米线所对应的磁场强度分别为12T和8T。采用乙二醇与乙醇的混合液作溶剂时，产物中纳米线所对应的磁场强度提高。最后讨论了磁场诱导合成＆纳米线的原因。
英文摘要：
The influence of strong magnetic field on the morphology of nano-Bi by solvothermal synthesis is investigated in this study. The glycol or the mixture of glycol and ethanol is used as the solvent,and BiNO3 is selected as Bi source. The results show that a strong magnetic field can promote the anisotropy growth of nano-Bi and induce the Bi nanowire. With enhancing the intensity of magnetic field, the proportion of nanowire in the obtained product increases. The higher the reaction temperature gets, the lower the intensity of magnetic field corresponded to the condition for obtaining the entire nanowires in the product. At 150℃, the entire nanowires is not yet obatined in the product until the intensity of magnetic field is up to 12T. At 180℃ and 210℃, the intensity of magnetic field corresponded to the entire nanowires in the product are 12T and ST, respectively. Compared with pure glycol solvent, the intensity of magnetic field that nanowires appear in the product becomes larger when the mixture of glycol and ethanol is used as the solvent. Finally, the reason that magnetic field induces the synthesis of Bi nanowire is discussed.
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同项目期刊论文
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