[1]陈慧,陈云飞,陈敏华,等.填充氩后单壁碳纳米管的导热系数[J].东南大学学报(自然科学版),2006,36(3):416-419.[doi:10.3969/j.issn.1001-0505.2006.03.017]
 Chen Hui,Chen Yunfei,Chen Minhua,et al.Thermal conductivity of single-wall carbon nanotubes filled with argon[J].Journal of Southeast University (Natural Science Edition),2006,36(3):416-419.[doi:10.3969/j.issn.1001-0505.2006.03.017]
点击复制

填充氩后单壁碳纳米管的导热系数()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
36
期数:
2006年第3期
页码:
416-419
栏目:
能源与动力工程
出版日期:
2006-05-20

文章信息/Info

Title:
Thermal conductivity of single-wall carbon nanotubes filled with argon
作者:
陈慧1 陈云飞12 陈敏华1 毕可东1
1 1 东南大学机械工程学院, 南京 210096; 2 2 东南大学MEMS教育部重点实验室, 南京 210096
Author(s):
Chen Hui1 Chen Yunfei12 Chen Minhua1 Bi Kedong1
1 College of Mechanical Engineering, Southeast University, Nanjing 210096, China
2 Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
导热系数 单壁碳纳米管 分子动力学
Keywords:
thermal conductivity single-wall carbon nanotubes argon molecular dynamics
分类号:
TK124
DOI:
10.3969/j.issn.1001-0505.2006.03.017
摘要:
采用平衡态分子动力学(EMD)模拟方法,计算了填充氩后的(10,10)型和(15,15)型的单壁碳纳米管分别在不同温度下的导热系数.研究了它们随温度的变化情况,并将其与相应的空的碳纳米管的导热系数进行比较,分析在相同温度下,充氩对碳纳米管导热系数的影响.模拟结果发现:在500~1 200 K的温度范围内,(10,10)型碳纳米管和(15,15)型碳纳米管在填充了氩后其导热系数值均随着温度的升高呈下降趋势,这与空的碳纳米管的导热系数随温度的变化关系相似; 在相同温度下,这2种类型的碳纳米管在填充了氩后的导热系数值均比相应的空的碳纳米管的导热系数值明显高很多.
Abstract:
Thermal conductivities of single-wall carbon nanotubes(SWNTs)filled with argon(Ar)with types(10, 10)and(15, 15)respectively, are calculated over a temperature range of 500 to 1 200 K using equilibrium molecular dynamics(EMD)simulation method. As compared with the thermal conductivity of the corresponding bare unfilled SWNTs at same temperature, the effects of filled argon on the thermal conductivity as well as the temperature dependence of the thermal conductivity are investigated. It is found that the thermal conductivities of filled(10, 10)and(15, 15)SWNTs decrease as the temperature increases, showing qualitatively similar behavior to that of a corresponding bare unfilled nanotube. It is also found that the thermal conductivity of SWNTs filled with argon, whether(10,10)or(15,15), is enormously higher than that of the corresponding empty carbon nanotube at all temperatures.

参考文献/References:

[1] Iijima S.Helical microtubules of graphitic carbon [J]. Nature,1991,354(6348):56-58.
[2] Journet C,Maser W K,Bernier P,et al.Large-scale production of single-walled carbon nanotubes by the electric-arc technique [J].Nature,1997,388(6644):756-758.
[3] Chico L,Crespi V H,Benedict L X.Pure carbon nanoscale devices:nanotube heterojunctions [J].Phys Rev Lett,1996,76(6):971-974.
[4] Ebbesen T W,Lezec H J,Hiura H,et al.Electrical conductivity of individual carbon nanotubes [J].Nature,1996,382(6586):54-56.
[5] Hone J,Whitney M,Piskoti C,et al.Thermal conductivity of single-walled carbon nanotubes [J].Phys Rev B,1999,59(4):R2514-2516.
[6] Osman M A,Srivastava D.Temperature dependence of the thermal conductivity of single-wall carbon nanotubes [J].Nanotechnology,2001,12(1):21-24.
[7] Maruyama S.Molecular dynamics simulation of heat conduction of a finite length single-walled carbon nanotube [J].Microscale Thermophysical Engineering,2003,7(1):41-50.
[8] Smith B W,Monthioux M,Luzzi D E.Carbon nanotube encapsulated fullerenes:a unique class of hybrid materials [J]. Chemical Physics Letters,1999,315(1,2):31-36.
[9] Vavro J,Llaguno M C,Satishkumar B C,et al.Electrical and thermal properties of C60-filled single-wall carbon nanotubes[J]. Appl Phys Lett,2002,80(8):1450-1452.
[10] Vavro J,Llaguno M C,Satishkumar B C,et al.Structural and electronic properties of molecular nanostructures [C] //AIP Conf Proc.New York,2002,633:127.
[11] Noya E G,Srivastava D,Chernozatonskii L A,et al.Thermal conductivity of carbon nanotube peapods [J].Phys Rev B,2004,70(11):115416(1-5).
[12] Hansen J P,McDonald I R. Theory of simple liquids [M].London:Academic Press,1976:45-55.
[13] Hoover W G,Ashurst W T.Nonequilibrium molecular dynamics,theoretical chemistry:advances and perspectives[M].New York:Academic Press,1975:1-51.
[14] Tersoff J.New empirical approach for the structure and energy of covalent systems [J].Phys Rev B,1988,37(12):6991-7000.
[15] Tersoff J.Empirical interatomic potential for carbon,with applications to amorphous carbon [J].Phys Rev Lett,1988,61(25):2879-2882.
[16] Allen M P,Tildesley D J. Computer simulation of liquids [M].Oxford:Clarendon Press,1987:71-108.
[17] Irving J H,Kirkwood J G.The statistical mechanical theory of transport processes.Ⅳ.the equations of hydrodynamics [J].J Chem Phys,1950,18(6):817-829.

相似文献/References:

[1]杨决宽,唐明兵,钱瑞明,等.晶格失配对超晶格法向导热系数影响的分子动力学模拟[J].东南大学学报(自然科学版),2006,36(3):427.[doi:10.3969/j.issn.1001-0505.2006.03.020]
 Yang Juekuan,Tang Mingbing,Qian Ruiming,et al.Molecular dynamics simulation of the influence of lattice mismatch on cross-plane superlattice thermal conductivity[J].Journal of Southeast University (Natural Science Edition),2006,36(3):427.[doi:10.3969/j.issn.1001-0505.2006.03.020]
[2]毕可东,陈云飞,王玉娟,等.金刚石导热系数的各向同性分子动力学模拟[J].东南大学学报(自然科学版),2010,40(4):746.[doi:10.3969/j.issn.1001-0505.2010.04.016]
 Bi Kedong,Chen Yunfei,Wang Yujuan,et al.Homogeneous molecular dynamics simulation of thermal conductivity of diamond[J].Journal of Southeast University (Natural Science Edition),2010,40(3):746.[doi:10.3969/j.issn.1001-0505.2010.04.016]
[3]毕可东,陈云飞,杨决宽,等.不同结构单壁碳纳米管热传导的分子动力学模拟[J].东南大学学报(自然科学版),2006,36(3):420.[doi:10.3969/j.issn.1001-0505.2006.03.018]
 Bi Kedong,Chen Yunfei,Yang Juekuan,et al.Molecular dynamics simulation of thermal conductivity of single-wall carbon nanotubes with different structures[J].Journal of Southeast University (Natural Science Edition),2006,36(3):420.[doi:10.3969/j.issn.1001-0505.2006.03.018]
[4]汪国栋,杨决宽,陈云飞.硅纳米线热传导的分子动力学模拟[J].东南大学学报(自然科学版),2006,36(3):423.[doi:10.3969/j.issn.1001-0505.2006.03.019]
 Wang Guodong,Yang Juekuan,Chen Yunfei.Molecular dynamics simulation of thermal conductivity of Si nanowires[J].Journal of Southeast University (Natural Science Edition),2006,36(3):423.[doi:10.3969/j.issn.1001-0505.2006.03.019]
[5]杨决宽,陈云飞,颜景平.超薄氩膜热传导的分子动力学模拟[J].东南大学学报(自然科学版),2003,33(3):303.[doi:10.3969/j.issn.1001-0505.2003.03.014]
 Yang Juekuan,Chen Yunfei,Yan Jingping.Molecular dynamics simulation of thermal conductivity of argon thin film[J].Journal of Southeast University (Natural Science Edition),2003,33(3):303.[doi:10.3969/j.issn.1001-0505.2003.03.014]
[6]庞麓呜,张正荣,陈善年,等.水套球型导热装置热工性能分析——兼谈南工Ⅰ型导热装置[J].东南大学学报(自然科学版),1979,9(3):76.[doi:10.3969/j.issn.1001-0505.1979.03.007]
 Pang Lu-Ming,Zhang Zheng-Rong,Chen Shang-Nian,et al.An Analysis of Thermal Characteristics of the Water-jacketed Spherical Thermal Conductivity Test Apparatus[J].Journal of Southeast University (Natural Science Edition),1979,9(3):76.[doi:10.3969/j.issn.1001-0505.1979.03.007]

备注/Memo

备注/Memo:
基金项目: 国家重点基础研究发展计划(973计划)资助项目(2006CB300404)、国家自然科学基金资助项目(50276011, 50275026)、江苏省自然科学基金资助项目(BK2005063).
作者简介: 陈慧(1982—),女,硕士生; 陈云飞(联系人),男,博士,教授,博士生导师,yunfeichen@seu.edu.cn.
更新日期/Last Update: 2006-05-20