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| 论文编号: |
122214O120120144 |
| 第一作者所在部门: |
704组 |
| 中文论文题目: |
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| 英文论文题目: |
Precisely tailoring dendritic α-Fe2O3 structures along [10-10] directions
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| 论文题目英文: |
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| 作者: |
刘忠
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| 论文出处: |
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| 刊物名称: |
Crystal Engineering Communication（CrystEngComm）
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| 年: |
2012
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| 卷: |
14 |
| 期: |
11 |
| 页: |
4074-4080 |
| 联系作者: |
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| 收录类别: |
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| 影响因子: |
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| 摘要: |
In the present work, a significant advance has been made in precisely tailoring dendritic a-Fe2O3 structures along [101？] and/or its equivalent directions. We proposed that the benzoate anions adsorb on (101？) and/or its equivalent facets, leading to the slow growth of these facets. By carefully
controlling the experimental conditions, the dendritic structures can be gradually tailored to nanorods and finally to dodecahedral a-Fe2O3 nanoparticles with twelve exposed (011？) planes. Interestingly, with the process proceeding, the coercivity (Hc) of these particles decreases successively due to the reduction in magnetic anisotropy by lessening intensity of hierarchical hyperbranched structure. The tailoring process gives us an in-depth understanding of the formation mechanism of dendritic a-Fe2O3
structures, which is not possibly achieved by the traditional time-dependent method. |
| 英文摘要: |
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