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#Post#: 3671--------------------------------------------------
Zeolite Hydrogen Storage for hydrogen powered transportation
DIR By: AGelbert
Date: August 28, 2015, 8:14 pm
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Research Article
High-Pressure Hydrogen Adsorption in the Zeolites: A Grand
Canonical Monte Carlo Study
[I]Xiuying Liu, Jie He, and Rui Li
College of Science, Henan University of Technology, Henan,
Zhengzhou 450001, China
Received 22 April 2012; Accepted 15 June 2012
Academic Editors: F. E. Little and R. P. Saini
Copyright © 2012 Xiuying Liu et al. This is an open access
article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and
reproduction in any medium, provided the original work is
properly cited.[/i]
SNIPPET 1:
Hydrogen storage is a key enabling technology for the extensive
use of hydrogen as an energy carrier. The aim is to develop
economically and environmentally attractive solutions for
storage options. Therefore, a number of novel storage techniques
are being investigated to complement the currently available
methods.
SNIPPET 2:
Zeolites are aluminosilicate crystals extensively used in
industrial applications involving separation, adsorption, or
preferential adsorption of gases [9]. These applications have
motivated theoretical and experimental works devoted to the
measurement and computation of the adsorption of simple gases or
complex molecular fluids on these materials.
Numerical simulations have been realized using a sound model of
the interactions between the zeolite crystal and gas molecules,
with the aim of evaluating the possibility of computing the
amount of gas adsorbed at a given pressure and temperature with
acceptable precision.,
The objective of the present work is concerned with the
adsorption of H2 on the different zeolites. Here, we have
investigated three zeolites with different channel diameters and
pore volumes. The physisorption properties of hydrogen molecules
on RHO, ZON, and CHA zeolites have been simulated employing GCMC
method. Figure 1 shows a schematic drawing of the zeolite pore
structure investigated [10].
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SNIPPET 3:
The results show that the physisorption properties of CHA
zeolite are superior to those of ZON zeolite at all conditions.
The reasonable theoretical explanations are given by calculating
the isosteric heats of adsorption at the different temperatures.
HTML http://www.hindawi.com/journals/isrn/2012/491396/
Hydrogen Storage for Energy Application
Rahul Krishna, Elby Titus*, Maryam Salimian, Olena Okhay,
Sivakumar Rajendran and Jose Gracio Nanotechnology Research
Division (NRD), Centre for Mechanical Technology and Automation
(TEMA), Dept. of Mechanical Engineering, University of Aveiro,
Portugal
J. M. G. Sousa, A. L. C. Ferreira and Ananth Rajkumar
Department of Physics& I3N, University of Aveiro, Portugal
Joćo Campos Gil
Department of Physics, University of Coimbra, Portugal[/i
SNIPPET 1:
Zeolites contain well defined open-pore structure, [i]with often
tunable pore size, and show notable guest-host chemistry, with
important applications in catalysis, gas adsorption,
purification and separation [33]. Additionally, this material is
cheap and has been widely used in industrial processes for many
decades.
The extensive experimental survey depicts the hydrogen storage
capacity of zeolites to be <2 wt% at cryogenic temperatures and
<0.3 wt% at room temperatures and above [34].
SNIPPET 2:
Figure 7 shows that the structure of these minerals is most
commonly based on a framework of alternating AlO4 and SiO4
species, with charge balancing (hydroxyl or cationic) entities,
forming networks of cavities, channels and openings of varying
dimensions [35].
SNIPPET 3:
The hydrogen revolution following the industrial age has just
started. Hydrogen
production, storage and conversion have reached a technological
level although plenty of improvements and new discoveries are
still possible.
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