Characterization of X-ray charge neutralizer using carbon-nanotube field emitter

Multiwalled carbon nanotube (MWCNT) was subjected a copolymerization reaction with 4, 6-diaminoresorcinol salt (DAR•2HCl) and terephthalic acid (TA) in polyphosphoric acid (PPA) by Friedel-Crafts acylation reaction without any acid treatment or modification. The structure and morphology of the as-prepared poly (p-phenylene benzobisoxazole) (PBO)/MWCNT nanocomposites were characterized by X-ray diffraction (XRD) and scanning electronic microscope (SEM). The SEM images indicated that MWCNTs can disperse in PBO matrix uniformly without agglomeration and MWCNTs have been introduced into PBO matrix by covalent bonding via Friedel-Crafts acylation between MWCNTs and TA.

Download Full-text

Characterization of carbon nanotube webs and yarns with small angle X-ray scattering: Revealing the yarn twist and inter-nanotube interactions and alignment

Carbon ◽

10.1016/j.carbon.2013.06.065 ◽

2013 ◽

Vol 63 ◽

pp. 562-566 ◽

Cited By ~ 19

Author(s):

Ludovic Dumée ◽

Kallista Sears ◽

Stephen Mudie ◽

Nigel Kirby ◽

Chris Skourtis ◽

...

Keyword(s):

Carbon Nanotube ◽

Small Angle ◽

X Ray ◽

Yarn Twist ◽

X Ray Scattering ◽

Ray Scattering

Download Full-text

Characterization of metallic field emitter array devices fabricated by molding for x-ray free electron laser applications

2007 IEEE 20th International Vacuum Nanoelectronics Conference ◽

10.1109/ivnc.2007.4481002 ◽

2007 ◽

Author(s):

S. Tsujino ◽

E. Kirk ◽

H. Sehr ◽

T. Vogel ◽

J. Gobrecht ◽

...

Keyword(s):

Free Electron ◽

Free Electron Laser ◽

Laser Applications ◽

Field Emitter ◽

X Ray ◽

Emitter Array ◽

Field Emitter Array

Download Full-text

Surface Modification of Multi-Walled Carbon Nanotube Using Double-Chained Quartenary Ammonium Bromide

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.701.18 ◽

2016 ◽

Vol 701 ◽

pp. 18-22 ◽

Cited By ~ 2

Author(s):

Mohd Junaedy Osman ◽

Wan Md Zin Wan Yunus ◽

Keat Khim Ong ◽

Noor Azilah Mohd Kasim ◽

Siti Hasnawati Jamal ◽

...

Keyword(s):

Carbon Nanotube ◽

Functional Group ◽

Ammonium Bromide ◽

New Materials ◽

X Ray Diffraction ◽

Xrd Pattern ◽

X Ray ◽

Weight Losses ◽

Multi Walled Carbon Nanotube

Modification of multi-walled carbon nanotube (MWCNT) plays an important role to produce MWCNT crossbreeds that may be useful for exploration of new materials. In this report, characterization of dimethyl dioctadecylammonium bromide (DDOAB) modified multi-walled carbon nanotube (Mo-MWCNT) using Fourier Transform Infrared (FTIR) spectroscopy and Thermogravimetric analysis (TGA) and X-ray diffraction (XRD) is described. FTIR shows the presence of both aliphatic (CH stretching and CH bending) and ammonium (CN stretching) groups from DDOAB and the existence of C=C aromatic functional group from the structure of MWCNT in Mo-MWCNT spectra. This result was supported by TGA result which suggests that there are weight losses due to the degradation of DDOAB (between 250 °C to 500 °C) in the product. In addition, XRD pattern remain after modification suggesting attachment of MWCNT and DDOAB occurs at the surface of MWCNT.

Download Full-text