Effect of Reaction Temperature and Catalyst Type on the Formation of Boron Nitride Nanotubes by Chemical Vapor Deposition and Measurement of Their Hydrogen Storage Capacity

2012 ◽  
Vol 51 (35) ◽  
pp. 11341-11347 ◽  
Author(s):  
Burcu Saner Okan ◽  
Züleyha Özlem Kocabaş ◽  
Asli Nalbant Ergün ◽  
Mustafa Baysal ◽  
Ilse Letofsky-Papst ◽  
...  
2016 ◽  
Vol 09 (06) ◽  
pp. 1642001 ◽  
Author(s):  
Jie Li ◽  
Wei Dai ◽  
Muqing Chen ◽  
Tian Wu

An efficient chemical vapor deposition (CVD) method was successfully utilized to synthesize boron nitride nanotubes (BNNTs), where Ammonium boron trifluoride (NH3BF[Formula: see text] and MgCl2 were employed as the novel single-source precursor and the promoter, respectively. The as-obtained BNNTs displayed a collapsed structure with the average diameter of 15[Formula: see text]nm and lengths up to tens of micrometers, named as collapsed BNNTs. They exhibited a reproducible hydrogen storage capacity of 2.63[Formula: see text]wt.% under 10 MPa and at ambient temperature. Moreover, they showed an high storage cycling stability due to the excellent chemical and structural stability.


2016 ◽  
Vol 652 ◽  
pp. 27-31 ◽  
Author(s):  
Liangjie Wang ◽  
Taotao Li ◽  
Lin Ling ◽  
Jie Luo ◽  
Kai Zhang ◽  
...  

2010 ◽  
Vol 22 (5) ◽  
pp. 1782-1787 ◽  
Author(s):  
Chee Huei Lee ◽  
Ming Xie ◽  
Vijaya Kayastha ◽  
Jiesheng Wang ◽  
Yoke Khin Yap

2015 ◽  
Vol 29 (13) ◽  
pp. 1550062 ◽  
Author(s):  
Minghui Wang ◽  
Xinlu Cheng ◽  
Dahua Ren ◽  
Hong Zhang ◽  
Yongjian Tang

The hydrogen-rich compound ( H 2)n CH 4 (for n = 1, 2, 3, 4) or for short ( H 2)n M is one of the most promising hydrogen storage materials. The ( H 2)4 M molecule is the best hydrogen-rich compound among the ( H 2)n M structures and it can reach the hydrogen storage capacity of 50.2 wt.%. However, the ( H 2)n M always requires a certain pressure to remain stable. In this work, we first investigated the binding energy of the different structures in ( H 2)n M and energy barrier of H 2 rotation under different pressures at ambient temperature, applying ab initio methods based on van der Waals density functional (vdW-DF). It was found that at 0 GPa, the ( H 2)n M is not stable, while at 5.8 GPa, the stability of ( H 2)n M strongly depends on its structure. We further investigate the Raman spectra of ( H 2)n M structures at 5.8 GPa and found the results were consistent with experiments. Excitingly, we found that boron nitride nanotubes (BNNTs) and graphite and hexagonal boron nitride ( h - BN ) can be used to store ( H 2)4 M , which give insights into hydrogen storage practical applications.


ChemInform ◽  
2015 ◽  
Vol 46 (26) ◽  
pp. no-no
Author(s):  
Pervaiz Ahmad ◽  
Mayeen Uddin Khandaker ◽  
Ziaul Raza Khan ◽  
Yusoff Mohd Amin

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