Analysis of Capillary Condensation of Vapor in Multi-wall Carbon Nanotubes

被引：1

作者：

Wang, Wei ^{[1
]}

Wang, Xin ^{[1
]}

Li, Tuo ^{[1
]}

Chen, Weiping ^{[2
]}

机构：

[1] Harbin Inst Technol, Dept Microelect, Harbin 150006, Heilongjiang, Peoples R China

[2] Minst Educ, Key Lab Micr Syst & Mico Struct Mfg, Harbin, Peoples R China

来源：

MEMS/NEMS NANO TECHNOLOGY | 2011年 / 483卷

关键词：

Multi-wall Carbon Nanotubes; Capillary Condensation; Quartz Crystal; ADSORPTION; NITROGEN;

D O I：

10.4028/www.scientific.net/KEM.483.694

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Multi-wall Carbon Nanotubes (MWNTs) is the new hotspot material as the active sensing element, but there is no certain theory on the phenomenon of the vapor's capillary condensation in MWNTs for the present. This paper presents a new theory that the capillary condensation of vapor in MWNTs mostly occur in the internal hollow tube, according to the calculation of equivalent model of MWNTs. A kind of carbon nanotubes (CNTs) humidity sensor based on quartz crystal microbalance was fabricated, CNTs employed as adsorption materials. The sensor was put in 11% and 97% relative humidity environment in experimental, and the value of M-H2O/M-CNT was calculated. The theory in this paper is proved by the comparison between the experimental and the analysis results.

引用

页码：694 / +

页数：2

共 11 条

[1] DUJARDIN E, 1994, LOGIC CIRCUITS CARBO, V265, P1850
[2] HELICAL MICROTUBULES OF GRAPHITIC CARBON
IIJIMA, S
[J]. NATURE, 1991, 354 (6348) : 56 - 58
[3] In situ synthesized composite thin films of MWCNTs/PMMA doped with KOH as a resistive humidity sensor
Su, Pi-Guey
Wang, Chao-Shen
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2007, 124 (02): : 303 - 308
[4] Talapatra S., 1999, PHYS REV LETT, V82, P4809
[5] Thostenson Erik T., 2001, COMPOSITES SCI TEC B, P1899
[6] Ugarte D., 1999, SCI TECHNOLOGY CARBO, P128
[7] UGARTE D, 1996, LOGIC CIRCUITS CARBO, V274, P1897
[8] Gas sensing characteristics of multi-wall carbon nanotubes
Varghese, OK
Kichambre, PD
Gong, D
Ong, KG
Dickey, EC
Grimes, CA
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2001, 81 (01) : 32 - 41
[9] Stress-induced fragmentation of multiwall carbon nanotubes in a polymer matrix
Wagner, HD
Lourie, O
Feldman, Y
Tenne, R
[J]. APPLIED PHYSICS LETTERS, 1998, 72 (02) : 188 - 190
[10] Adsorption and capillarity of nitrogen in aggregated multi-walled carbon nanotubes
Yang, QH
Hou, PX
Bai, S
Wang, MZ
Cheng, HM
[J]. CHEMICAL PHYSICS LETTERS, 2001, 345 (1-2) : 18 - 24

← 1 2 →