applied physics of carbon nanotubes, 2005, p 361

... Graphite support Impregnation 700 Acetylene 23 Ni Graphite support Impregnation 700 Acetylene 23 Ultra fine particle Decomposition of 800 Acetylene 24 Mo Ultra fine particle Decomposition ... employment of MWCNT for field emitter will be one of the most important applications of MWCNT. For this purpose, MWCNT is prepared by the chemical purification process [30,38], in...

Ngày tải lên: 05/03/2014, 17:20

... Si and SiO 2 powders under 9 Â 10 4 Pa Ar atmosphere at 1200°C. The experimental details were the same as those reported in our previous paper [3]. The experimental apparatus employed for coating ... amorphous silica outerlayer of the as-grown SiNWs was removed by RF plasma for 120 min with 300 W plasma power under 1X5 Â 10 2 Pa gas pressure at 300°C substrate temperature. Then, the pre-car...

Ngày tải lên: 16/03/2014, 15:04

... organic polymer host (poly(m-pheny- lene-co-2,5-dioctoxy -p- phenylenevinylene (PmPV)) in tolu- ene. PmPV is shown to be capable of suspending nanotubes indefinitely whilst the accompanying graphitic particles ... experimentally that carbon nanotubes (CNTs) possess excellent physical and chemical properties and have wide-range potential applica- tions. However, only some of these propert...

Ngày tải lên: 20/03/2014, 13:06

... leads to a collapse of the cylinder and an abrupt change in pattern, or a sequence of such events. The presence of a snap-through buckling of nanotubes allows for a possibility of “shape memory”, ... theoretical- heuristic value of nanotube research supplements their importance due to anticipated practical applications. A morphological similarity of fullerenes and nanotubes to t...

Ngày tải lên: 24/03/2014, 05:20

... CNT quality. A unique feature of the microwave plasma chemical vapor deposition (MPCVD) process is the presence of a wide parameter space that facilitates the control of the CNT growth properties. The dc voltage ... are often accompanied by defects, which can adversely affect the electron transport properties. As discussed in greater detail by Meyyappan et al., 23 plasma-enhanced chemic...

Ngày tải lên: 06/05/2014, 08:53

Ngày tải lên: 19/01/2014, 13:02

... methodologies in the preparation of fullerene nanoparticles. The negative effect has been imputed to the presence of THF into the preparation (Isakovic et al., 2006a). Fullerene nanoparticle preparation ... 2007). 1.2 Cell Protection and Antioxidant Properties The possibility to employ C 60 as cytoprotective agents can be considered both one of the most promising applications and on...

Ngày tải lên: 17/02/2014, 05:20

... of fundamental equation of the compound pendulum. Use of compound pendu- lum equation to measure moments of inertia. Energy of a body executing simple harmonic motion. CONTENTS ix CHAPTER PAGE 16. PROPERTIES OF WAVES 139 Essential characteristics of a ... and cosine; sine law, cosine law 305 APPENDIX 7: Table of sines and cosines 307 APPENDIX 8: Three-place logarithm table 308...

Ngày tải lên: 19/02/2014, 05:20

... confirm the validity of our sensor response to ozone. Fig. 6 shows the responses of sample 1 and sample 2 at 1 ppm of ozone gas. The improved responses of the sensor under ozone gas exposure after the ... materials whose properties allow fast response and high sensitivity to certain gases. Since it was reported that the electrical properties of carbon nanotubes (CNTs) change by ads...

Ngày tải lên: 19/03/2014, 16:47

... amount (0.5 g) of TiO 2 /MWCNT powder was mixed with 4–6 drops of Triton-X to obtain the screen-printing paste. In the case of TiO 2 powder , 0.5 g were mixed with 10–20 drops of propylene glycol ... response of MWCNT and composite films is presented in Fig. 6. Carbon nanotubes show an increased resistance upon ammonia adsorption (Fig. 6a) which is typical of p- type semiconduct...

Ngày tải lên: 20/03/2014, 13:07