Biomedical Engineering Reference
In-Depth Information
Ref. [112] and using the above analytical results, one can explain
the absence of such phenomenon both for GNFs [112] and for a
number of other related experiments [4]. But, certainly, it needs
further related studies.
A certain substantiation of such sorption process is provided by
a series of theoretical works, developed by researchers from Canada
and Germany in the framework of the studies devoted to find a new
approach for accumulating hydrogen in graphene nanostructures
[105].
On the other hand, using Monte Carlo simulation of the physical
sorption of hydrogen molecules between the graphene layers of GNF
samples (at 10 MPa and a room temperature), some researchers [106]
have shown that it is impossible to interpret the anomalous adsorption
data in Ref. [12] (
process) within the standard models of molecular
hydrogen-graphite interaction potentials.
High-precision experimental data on the sorption capacity of
activated carbon and GNF (≤0.6 and 0.3 wt%, respectively) saturated
with hydrogen at room temperature and pressures up to 10 MPa are
reported in Ref. [107].
αX
Figure 2.20
Micrographs of dehydrogenated GNF; the arrows indicate
some of the formed slit-like nanopores [104].
These reported values of the sorption capacity are close (as order
of magnitude) to the experimental data in Ref. [108] (0.77 wt%) and
