Preparation and characterization of a tantalum-containing pitch precursor for carbon materials
文献类型：期刊论文
| 作者 | Li Xiu-Tao; Shi Jing-Li; Guo Quan-Gui; Zhai Geng-Tai; Liu Lang; Song Jin-Ren |
| 刊名 | New carbon materials
 |
| 出版日期 | 2007-06-01 |
| 卷号 | 22期号:2页码:115-120 |
| 关键词 | Tantalum pentachloride Precursor Pitch Composites |
| ISSN号 | 1007-8827 |
| 通讯作者 | Li xiu-tao(xtli77@yahoo.com) |
| 英文摘要 | Tantalum-containing pitch as a carbon precursor was synthesized by an in situ liquid phase reaction between coal tar pitch and tantalum pentachloride. the dispersion, chemical state and transformation of tantalum during carbonization and graphitization were characterized by scanning electron microscopy, transmission electron microscopy and x-ray diffraction measurements. also, the effects of the amount of tantalum pentachloride and reaction time on the softening point of the pitch were investigated.. results showed that the tantalum particles were dispersed homogeneously in the pitch precursor with sizes in the range of 20-50 nm. the tantalum particles mainly existed in the form of delta-ta2o5 when the reaction temperature was 420 degrees c. by further heat treatment, delta-ta2o1 was transformed into beta-ta2o5 at 900 degrees c. beta-ta2o5 and tac co-existed at 1200 degrees c. at 2800 degrees c, all the tantalum was transformed into tac. |
| WOS关键词 | SUBSTITUTED POLYAROMATIC MESOPHASE ; METAL CARBIDES ; PHENYLSILANES |
| WOS研究方向 | Materials Science |
| WOS类目 | Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000247702700004 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2380804 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li Xiu-Tao |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Aerosp Res Inst Mat & Proc Technol, Natl Key Def Lab Adv Funct Composite Mat, Beijing 100076, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Xiu-Tao,Shi Jing-Li,Guo Quan-Gui,et al. Preparation and characterization of a tantalum-containing pitch precursor for carbon materials[J]. New carbon materials,2007,22(2):115-120. |
| APA | Li Xiu-Tao,Shi Jing-Li,Guo Quan-Gui,Zhai Geng-Tai,Liu Lang,&Song Jin-Ren.(2007).Preparation and characterization of a tantalum-containing pitch precursor for carbon materials.New carbon materials,22(2),115-120. |
| MLA | Li Xiu-Tao,et al."Preparation and characterization of a tantalum-containing pitch precursor for carbon materials".New carbon materials 22.2(2007):115-120. |
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来源：中国科学院大学
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