Surface transformation of carbon nanotube powder into super-hydrophobic and measurement of wettability

被引：48

作者：

Hong, Yong Cheol ^{[1
]}

Shin, Dong Hun ^{[1
]}

Cho, Soon Cheon ^{[1
]}

Uhm, Han Sup ^{[1
]}

机构：

[1] Ajou Univ, Dept Mol Sci & Technol, Suwon 443749, South Korea

来源：

CHEMICAL PHYSICS LETTERS | 2006年 / 427卷 / 4-6期

关键词：

HYDROGEN STORAGE; TENSION; ENERGY;

D O I：

10.1016/j.cplett.2006.06.033

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Super-hydrophobic carbon nanotube (CNT) powders were formed by NF3 glow-discharge plasma at low-pressure and their surface free energies were directly determined from the contact angles with probe liquids using the Owens-Wendt plotting. The cushion made of plasma-treated CNT powders revealed super-hydrophobicity (contact angle > 153 degrees), regardless of kinds of probe liquids and treatment-time. The surface free energy of the NF3 plasma-treated CNT powders decreased drastically from 82.6 to 0.12 mJ/m(2). The plasma treatment using fluorinated compound gases may be useful for dispersing, separating, and cutting CNTs since CNTs have tendency to aggregate in bundles and poor solubility. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：390 / 393

页数：4

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