Two novel derivatives of ammonia borane for hydrogen storage: synthesis, structure, and hydrogen desorption investigation

2013 ◽  
Vol 1 (39) ◽  
pp. 12263 ◽  
Author(s):  
Leigang Li ◽  
Qinfen Gu ◽  
Ziwei Tang ◽  
Xiaowei Chen ◽  
Yingbin Tan ◽  
...  
2008 ◽  
Vol 10 (40) ◽  
pp. 6104 ◽  
Author(s):  
Cheng-Hua Sun ◽  
Xiang-Dong Yao ◽  
Ai-Jun Du ◽  
L. Li ◽  
Sean Smith ◽  
...  

CrystEngComm ◽  
2014 ◽  
Vol 16 (45) ◽  
pp. 10367-10370 ◽  
Author(s):  
Ewelina Magos-Palasyuk ◽  
Taras Palasyuk ◽  
Patryk Zaleski-Ejgierd ◽  
Karol Fijalkowski

The paper reports on the experimental and theoretical investigation of bonding properties of potassium amidoborane, (K[NH2BH3]), which is one of the most promising compounds for hydrogen storage material among metallated derivatives of ammonia borane (NH3BH3).


2012 ◽  
Vol 586 ◽  
pp. 50-57
Author(s):  
Yang Huan Zhang ◽  
Tai Yang ◽  
Hong Wei Shang ◽  
Guo Fang Zhang ◽  
Xia Li ◽  
...  

In order to obtain a nanocrystalline and amorphous structure, the Mg20Ni8M2 (M=Cu, Co) hydrogen storage alloys were fabricated by the melt spinning technology. The microstructures of the alloys were characterized by XRD, SEM and HRTEM. The effects of the melt spinning on the hydriding and dehydriding kinetics of the alloys were investigated. The results indicate that the as-spun (M=Cu) alloys hold an entire nanocrystalline structure even if the limited spinning rate is applied, while the as-spun (M=Co) alloys display a nanocrystalline and amorphous structure as the spinning rate grows to 30 m/s, suggesting that the substitution of Co for Ni facilitates the glass formation in the Mg2Ni-type alloy. The melt spinning remarkably improves the gaseous hydriding and dehydriding kinetics of the alloys. As the spinning rate grows from 0 (As-cast was defined as the spinning rate of 0 m/s) to 30 m/s, the hydrogen absorption saturation ratio ( ) is enhanced from 56.72% to 92.74% for the (M=Cu) alloy and from 80.43% to 94.38% for the (M=Co) alloy. The hydrogen desorption ratio ( ) is raised from14.89% to 40.37% for the (M=Cu) alloy and from 24.52% to 51.67% for the (M=Co) alloy.


2010 ◽  
Vol 24 (4) ◽  
pp. 2596-2606 ◽  
Author(s):  
Scot D. Rassat ◽  
Christopher L. Aardahl ◽  
Tom Autrey ◽  
R. Scott Smith

2004 ◽  
Vol 837 ◽  
Author(s):  
M. W. Zandbergen ◽  
S. W. H. Eijt ◽  
W. J. Legerstee ◽  
H. Schut ◽  
V. L. Svetchnikov

ABSTRACTThe hydrogen storage properties of nanostructured Mg and MgH2 thin films were studied as created by Ar and Ar+H2 plasma sputter deposition. Columnar structures with typical widths of ∼120 nm are observed with their long columnar axis extending throughout the thickness of the films. Applying substrate bias voltages during deposition results in narrower columns. A concomitant reduction in hydrogen desorption temperature from 400 °C to 360 °C is observed. Capping the Mg films with a ∼100 nm thin Pd layer leads to significantly reduced hydrogen desorption temperatures of ∼200 °C induced by the catalytic activity of the Pd cap layer. Also, hydrogen permeation of the films is strongly improved. The rate-determining factor is found to be the dissociation of the hydrogen molecules. Optimum hydrogen loading conditions of the Pd/Mg films were obtained just above ∼200 °C at hydrogen pressures of 0.25–1.0 MPa, resulting in hydrogen storage capacities in the range of 4–7 wt%.


2011 ◽  
Vol 116 (1) ◽  
pp. 1544-1549 ◽  
Author(s):  
S. F. Li ◽  
Z. W. Tang ◽  
Y. B. Tan ◽  
X. B. Yu

Author(s):  
Jia Yu ◽  
Haiyan Jing ◽  
Peng Zhao ◽  
Keren Lu ◽  
Juanjuan Song ◽  
...  

Ammonia borane (NH3BH3, AB), a carbon-free-energy material has attracted enormous attention not only as the hydrogen storage source but also as the anodic fuel for direct AB fuel cells (DABFCs)....


2019 ◽  
Vol 21 (4) ◽  
pp. 850-860 ◽  
Author(s):  
Xiaopeng Qu ◽  
Rui Jiang ◽  
Qian Li ◽  
Fanan Zeng ◽  
Xue Zheng ◽  
...  

The development of highly efficient and cheap catalysts for the release of hydrogen from chemical hydrogen-storage materials is indispensable for the coming clean energy economy.


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