|
|||||
|
|
| 超细海绵镍在水中聚结行为的考察 | |
| 引用本文： | 范崇正 吴佑实. 超细海绵镍在水中聚结行为的考察[J]. 中国科学技术大学学报, 1995, 25(2): 133-137 |
| 作者姓名： | 范崇正 吴佑实 |
| 作者单位： | 中国科学技术大学，安徽机电学院 |
| 摘 要： | 用化学法制得一种以金属镍为主体的高比表面材料，其颗粒度在纳米（ｎｍ）量级．该材料在水中自发聚结，常温下可损失表面积达７０％．采用透射电镜（ＴＥＭ）、Ｘ－射线衍射（ＸＲＤ）、比表面积测定（ＳＳＡ）、原子吸收光谱（ＡＡＳ）、差热分析（ＤＴＡ）及程序升温还原（ＴＰＲ）等仪器分析手段对聚结前后的成分、结构及形貌进行了观测考察，发现聚结后颗粒度增大，结晶有序性提高，在表面积减小的同时伴随有其他现象发生． |
| 关 键 词： | 超细海绵镍，水中聚结，典型孔径，结晶程度 |
An Investigation on the Accumulation of Super Fine Sponge-Nickel in Water |
|
| Fan Chongzheng, Wu Youshi, Zhang Shuyuan,Li Jianmin, Zhou Guien. An Investigation on the Accumulation of Super Fine Sponge-Nickel in Water[J]. Journal of University of Science and Technology of China, 1995, 25(2): 133-137 | |
| Authors: | Fan Chongzheng Wu Youshi Zhang Shuyuan Li Jianmin Zhou Guien |
| Abstract: | A chemical method is used to produce a high-surface-area nickel materal, whose particle size is in (nm) dimension. The materisl accumulates automaticly in watsr, and loses 70% of its surface area at room temperatUre. Instrumental methods of TEM, XRD, SSA, AAS, DTA and TPR are employed to detect the changes in compeition, strucure, shape and surf see saute during the accumulation. It is found that after the accumulation the Particle size increazes, and the crystal orderliness improves, accompanied by other phenomena. |
| Keywords: | super fine sponge-Ni accumulation in water typical pore diameter crystalized degree |
| 本文献已被 CNKI 维普 等数据库收录！ | |