Low-temperature synthesis of nitrogen doped carbon nanotubes as promising catalyst support for methanol oxidation

2019 ◽  
Vol 28 ◽  
pp. 118-122 ◽  
Author(s):  
Liang Liang ◽  
Meiling Xiao ◽  
Jianbing Zhu ◽  
Junjie Ge ◽  
Changpeng Liu ◽  
...  
Author(s):  
Archana Sekar ◽  
Nathaniel Metzger ◽  
Sabari Rajendran ◽  
Ayyappan Elangovan ◽  
Yonghai Cao ◽  
...  

2008 ◽  
Vol 8 (5) ◽  
pp. 2526-2533 ◽  
Author(s):  
Cheng-Hui Weng ◽  
Chao-Shun Yang ◽  
Hsuan Lin ◽  
Chuen-Horng Tsai ◽  
Keh-Chyang Leou

In this work, we present a parametric study on the low temperature synthesis of single-walled carbon nanotubes (SWNTs) in an inductively coupled plasma (ICP) CVD system using dry bi-layered catalytic thin-films (Fe/Al and Ni/Al, deposited by electron-beam evaporation method) as the catalysts. With a low substrate temperature of 550 °C and above, SWNTs were successfully synthesized on both catalysts, as revealed from the characteristic peaks of SWNTs in the micro-Raman spectra. By the reduction of plasma power and the shortening of the process times, the lowest synthesis temperature of SWNTs achieved in our system was approached to 500 °C on Ni/Al catalysts; on the other hands, the lowest temperature for Fe/Al catalysts was 550 °C. Our results suggest that as compared with Fe/Al, Ni/Al is more favorable for plasma-enhanced CVD (PECVD) synthesis of SWNTs at low temperatures. This work can be used for further improvements and better understanding on the production processes of SWNTs by PECVD methods.


2012 ◽  
Vol 72 ◽  
pp. 164-167 ◽  
Author(s):  
Xudong Yang ◽  
Chunsheng Shi ◽  
Enzuo Liu ◽  
Chunnian He ◽  
Xiwen Du ◽  
...  

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