Effect of purification on pore structure of HiPco single-walled carbon nanotube aggregates

被引：94

作者：

Yang, CM

Kaneko, K

Yudasaka, M

Iijima, S

机构：

[1] NEC Corp Ltd, Japan Sci & Technol Corp, Tsukuba, Ibaraki 3058501, Japan

[2] Meijo Univ, Dept Phys, Tempa Ku, Nagoya, Aichi 4688502, Japan

[3] Chiba Univ, Fac Sci, Dept Chem, Inage Ku, Chiba 2638522, Japan

[4] Chiba Univ, Ctr Frontier Electron & Photon, Chiba 2638522, Japan

来源：

NANO LETTERS | 2002年 / 2卷 / 04期

关键词：

D O I：

10.1021/nl015652f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

HiPco single-walled carbon nanotube (HPNT) containing Fe was purified by one-step purification with HCI-washing (D-method) and two-step purification with HCI-washing after air oxidation (GD-method). The N-2 adsorption isotherm of HPNT at 77 K is of type If and it changes to type IV after purification. Purification by the 0 and GD methods increases the total surface area and micropore volume, and it decreases the average pore width from 3.5 nm to 1.7 and 1.0 nm, respectively.

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页码：385 / 388

页数：4

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