The role of H2 reduction in the growth of single-walled carbon nanotubes

Neslihan Yuca; Fatih Gümüş; Nilgün Karatepe

doi:10.1117/12.2023994

24 September 2013 The role of H₂ reduction in the growth of single-walled carbon nanotubes

Neslihan Yuca, Fatih Gümüş, Nilgün Karatepe

Proceedings Volume 8814, Carbon Nanotubes, Graphene, and Associated Devices VI; 881406 (2013) https://doi.org/10.1117/12.2023994
Event: SPIE NanoScience + Engineering, 2013, San Diego, California, United States

Abstract

Carbon nanotubes (CNTs) with their high mechanical, electrical, thermal and chemical properties are regarded as promising materials for many different potential applications. Chemical vapor deposition (CVD) is a common method for CNT synthesis especially for mass production. There are important parameters (synthesis temperature, catalyst and calcination conditions, substrate, carbon source, synthesis time, H₂ reduction, etc.) affecting the structure, morphology and the amount of the CNT synthesis. In this study, CNTs were synthesized by CVD of acetylene (C₂H₂) on magnesium oxide (MgO) powder substrate impregnated by iron nitrate (Fe (NO₃)₃•9H₂O) solution. The synthesis conditions were as follows: at catalyst calcination temperatures of 400 and 550°C, calcination time of 0, 15, 30 and 45 min, hydrogen concentrations of 0, 50 and 100 % vol, synthesis temperature of 800°C and synthesis time of 30 minutes. The synthesized materials were characterized by thermal gravimetric analysis (TGA), transmission electron microscopy (TEM), X ray diffraction (XRD) and Raman spectroscopy. Effects of H₂ reduction on catalyst calcination and CNT synthesis were investigated.

Citation Download Citation

Neslihan Yuca, Fatih Gümüş, and Nilgün Karatepe "The role of H₂ reduction in the growth of single-walled carbon nanotubes", Proc. SPIE 8814, Carbon Nanotubes, Graphene, and Associated Devices VI, 881406 (24 September 2013); https://doi.org/10.1117/12.2023994

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available