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N-doped carbon nanotubes with different nitrogen contents were synthesized by CVD with pyridine as nitrogen source and acetylene as carbon source. The samples’ morphology and bonding properties were characterized by transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). TEM images showed that with the increasing nitrogen content, the average bamboo segment distance of the carbon nonotubes decreased from 120 nm to 40 nm and more flexural tubes with coarse surface was obtained. XPS results revealed that there are pyridinic, pyrrolic and graphitic types of C-N bonds in the N-doped carbon nanotubes. The effect of nitrogen content on the bonding property was analyzed. And the chenge in morphology with increasing nitrogen content was explained by the difference in bonding forms.
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Keywords:
- carbon nanotubes /
- nitrogen-doped /
- XPS
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[1] ［1］ Iijima S 1991 Nature 354 56
[2] ［2］ Deheer W A, Bacsa W S, Chatelain A, Gerfin T, Humphrey-Baker R, Forro L,Ugarte D 1995 Science 268 845
[3] ［3］ Dillon A C, Jones K M 1997 Nature 386 377
[4] ［4］ Lourie O, Wang H D 1998 J. Mater. Res. 13 2418
[5] ［5］ Yi S P, Zhang H Y, Ou-Yang Y, Wang Y H, Pang J S 2006 Acta Phys. Sin. 55 2644 (in Chinese) ［易双萍、张海燕、欧阳玉、王银海、庞晋山 2006 物理学报 55 2644］
[6] ［6］ He C S, Wang W L，Chen G H，Li Z B 2009 Acta Phys. Sin. 58 S241 (in Chinese) ［何春山、王伟良、陈桂华、李志兵 2009 物理学报 58 S241］
[7] ［7］ Saito R, Fujita M, Dresselhaus G, Dresselhaus M S 1992 Appl. Phys. Lett. 60 2204
[8] ［8］ Zhong D, Liu S, Zhang G Y, Wang E G 2001 J. Appl. Phys. 89 5939
[9] ［9］ Satishkumar B C, Govindaraj A, Harikumar K R, Zhang J P, Cheetham A K, Rao C N R 1999 Chem. Phys. Lett. 300 473
[10] ］ Chen G D, Wang L D, Zhang J Q, Cao D C, An B, Ding F C, Liang J K 2009 Acta Phys. Sin. 58 1190 (in Chinese) ［陈国栋、王六定、张教强、曹得财、安博、丁富才、梁锦魁 2009 物理学报 58 1190］
[11] ］ Ding P, Liang E J，Zhang H R，Liu Y Z，Liu H，Guo X Y, Du Z L 2003 Acta Phys. Sin. 52 237 (in Chinese) ［丁佩、梁二军、张红瑞、刘一真、刘慧、郭新勇、杜祖亮 2003 物理学报 52 237］
[12] ］ Sen R, Satishkumar B C, Govindaraj A, Harikumar K R, Raina G, Zhang J P, Cheetham A K, Rao C N R 1998 Chem. Phys. Lett. 287 671
[13] ］ Wang X, Liu Y, Zhu D B, Zhang L, Ma H Z, Yao M, Zhang B L 2002 J. Phys. Chem. B 106 2186
[14] ］ Li Q, Liang E J 2005 Acta Phys. Sin. 54 5931 (in Chinese) ［李强、梁二军 2005 物理学报 54 5931］
[15] ］ Terrones M, Terrones H, Grobert N, Hsu W K, Zhu Y Q, Hare J P, Kroto H W, Walton D R M, Kohler-Redlich P, Ruhle M, Zhang J P, Cheetham A K 1999 Appl. Phys. Lett. 75 3932
[16] ］ Golberg D, Bando Y, Bourgeois L, Kurashima K, Sato T 2000 Carbon 38 2017
[17] ］ Hellgren N, Johansson M P, Broitman E, Hultman L, Sundgren J E 1999 Phys. Rev. B 59 5162
[18] ］ Sjstrm H, Stafstrm S, Boman M, Sundgren J E 1995 Phys. Rev. Lett. 75 1336
[19] ］ Ronning C, Feldermann H, Merk R, Hofsss H, Reinke P, Thiele J U 1998 Phys. Rev. B 58 2207
[20] ］ Marton D, Boyd K J, Al-Bayati A H, Todorov S S, Rabalais J W 1994 Phys. Rev. Lett.73 118
[21] ］ Casanovas J, Ricart J M, Rubio J, Illas F, Jimenez-Mateos J M 1996 J. Am. Chem. Soc. 118 8071
[22] ］ Jang J W, Lee C E, Lyu S C, Lee T J, Lee C J 2004 Appl. Phys. Lett. 84 2877
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