期刊文献+

碳质中间相形成机理研究 被引量:52

The formation mechanism of carbonaceous mesophase
在线阅读 下载PDF
导出
摘要 碳质中间相是制备高性能炭材料制品的优质前驱体,其产品已在高性能复合材料、超高功率石墨电极和二次锂离子电池用负极材料等方面得到了成功应用。碳质中间相产品的结构复杂、形态各异,造成了生产这些产品涉及的原料和处理过程的多样化。为了分析和预测一定条件下获得的碳质中间相产品的性能,进而确定其具体的用途,需要弄清碳质中间相的形成机理。通过系统地探讨碳质中间相的形成过程,对以往文献中的解释给予了归纳和分析。分析认为传统解释中存在许多不合理的地方,不能对一些现象给予合理的解释;“微域构筑”理论在传统解释的基础上有了很大进步,但由于该理论中引入了实际上并不存在的片层微晶单元而使其存在缺陷;“颗粒基本单元构筑”理论摒弃了以上两种理论中的不合理成分,能够对碳质中间相的形成过程进行很好的解释。此外,对“颗粒基本单元构筑”理论的一些应用也进行了讨论。 Carbonaceous mesophase is an excellent precursor for the production of high-performance carbon materials which have been successfully applied in high-performance composites, ultra-high power graphite electrodes and anodes of rechargeable lithium ion batteries. The complicated structures and various forms of carbonaceous mesophase make the raw materials and production process involved more complicated. It is important to have a good understanding of the mesophase formation mechanism in order to predict the performance of mesophase based carbon materials prepared under different conditions and to determine further their applications. A review of the formation process and mechanism of carbonaceous mesophase is given based on explanations in previous papers and a new Building from Granular Basic Units (BGBU) theory is proposed. It is found that there are many unreasonable explanations in traditional theory that cannot clarify some experimental facts. Microdomain building theory made great progress in explaining the formation of carbonaceous mesophase, but the introduction of the non-existent stacking units of molecules is a defect of the theory. BGBU theory was brought forward based on the former theories and can explain the formation process of carbonaceous mesophase very well. In addition, some applications of BGBU theory are discussed.
出处 《新型炭材料》 SCIE EI CAS CSCD 北大核心 2005年第3期278-285,共8页 New Carbon Materials
基金 国家自然科学基金项目(50172034)~~
关键词 碳质中间相 形成机理 基本单元构筑 Carbonaceous mesophase, Formation mechanism, Building from basic units
作者简介 李同起(1977-),河北景县人,博士研究生,主要从事碳质中间相形成机理与具体应用的研究。E-mail:leekey@eyou.cn 通讯作者:王成扬,Tel:+86-22-27406183,Fax:+86-22-27472656。E-mail:cywang@tju.edu.cn
  • 相关文献

参考文献30

  • 1李凯,栾志强.知识介绍中间相沥青基炭泡沫[J].新型炭材料,2004,19(1):77-78. 被引量:52
  • 2王成扬,李明伟,郑嘉明,稻垣道夫.中间相沥青熔融纺制异形纤维的研究(英文)[J].新型炭材料,2003,18(1):10-14. 被引量:9
  • 3芦时林,Brian Rand.高导热大直径中间相沥青炭纤维的研制及结构表征[J].新型炭材料,2000,15(1):1-5. 被引量:46
  • 4李宝华,吕永根,凌立成,刘朗,吴东.中间相炭微球用作锂离子电池阳极的充放电性能研究[J].新型炭材料,1999,14(4):28-33. 被引量:26
  • 5Klett J W, McMillan A D, Gallego N C, et al. Effects of heat treatment conditions on the thermal properties of mesophase pitch-derived graphitic foams[J]. Carbon, 2004, 42: 1 849-1 852.
  • 6Griffith G. Carbon foam: A next-generation structural material,industrial heating,2002[EB/OL].http://www.industrialheating.com/ CDA/ ArticleInformation/ features/ BNP_Features_Item/0,2832,87444,00.html. Adduced in August, 2004.
  • 7Mehta R, Anderson D P, Hager J W. Graphitic open-celled carbon foams: processing and characterization[J]. Carbon, 2003, 41: 2 174-2 176.
  • 8Gallego N C, Klett J W. Carbon foams for thermal management[J]. Carbon, 2003, 41: 1 461-1 466.
  • 9Klett J, Hardy R, Romine E, et al. High-thermal-conductivity, mesophase-pitch-derived carbon foams: effect of precursor on structure and properties[J]. Carbon, 2000, 38: 953-973.
  • 10Umemoto K, Saito S, Berber S, et al. Carbon foam: Spanning the phase space between graphite and diamond[Z]. Phgsical Review B, 64: 193409-1-3.

二级参考文献71

  • 1郑嘉明,王成扬,阮湘泉,郭崇涛.催化缩聚法制备萘沥青和中间相沥青[J].天津大学学报,1995,28(2):215-220. 被引量:14
  • 2石颖,查庆芳,刘朗.沥青基Y形炭纤维的熔融纺丝[J].新型炭材料,1995,11(3):33-37. 被引量:5
  • 3曾汉民.现代分析技术[M].上海: 上海科学技术出版社,1987.413.
  • 4Wang C Y,Carbon,1998年,36卷,12期,1749页
  • 5Wang C Y,博士学位论文,1998年,117页
  • 6Wang S T,Transmissions of Momentum,Heat,and Mass,1986年,66页
  • 7姜卉,中国电工技术学会炭 /石墨材料专业委员会第十八届学术交流会论文集,2000年,384页
  • 8吕永根,新型碳材料,1998年,13卷,1期,38页
  • 9Brooks J D, Taylor G H. The formation of graphitizing carbons from the liquid phase[J]. Carbon, 1965, 3: 185-193.
  • 10Imamura T, Yamada Y, Oi S, et al. Orientation behavior of carbonaceous mesophase spherules having a new molecular arrangement in a magnetic field[J]. Carbon 1978, 16: 481-486.

共引文献211

同被引文献523

引证文献52

二级引证文献233

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部