Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 22, 2025
Penta-octagraphene
(POG)
is
a
newly
suggested
two-dimensional
carbon
allotrope
recognized
for
its
distinct
configuration
and
fascinating
electronic
characteristics.
This
work
presents
new
inorganic
counterpart
of
POG,
named
POG-B4C2N3,
designed
through
density
functional
theory
(DFT)
calculations.
structure
exhibits
direct
band
gap
transition
at
the
X-point,
measured
0.32/0.86
eV
with
PBE/HSE
functionals.
Mechanical
properties
were
comprehensively
assessed,
showcasing
Young's
modulus
(Ymax/Ymin
=
157.12/100.84
N/m)
shear
(Gmax/Gmin
83.03/38.09
N/m),
alongside
Poisson's
ratio
(νmax/νmin
0.58/-0.09),
indicating
that
POG-B4C2N3
an
auxetic
material.
Additionally,
Li
decoration
on
this
monolayer
was
studied
to
investigate
potential
enhance
hydrogen
storage
physisorption.
The
Li@POG-B4C2N3
system
shows
robust
physisorption
(adsorption
energies
ranging
from
−0.35
−0.19
eV),
high
capacity
(8.35
wt
%),
effective
desorption
dynamics,
positioning
novel
material
as
promising
platform
reversible
storage.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(10), P. 6271 - 6392
Published: May 9, 2024
Hydrogen
is
considered
a
clean
and
efficient
energy
carrier
crucial
for
shaping
the
net-zero
future.
Large-scale
production,
transportation,
storage,
use
of
green
hydrogen
are
expected
to
be
undertaken
in
coming
decades.
As
smallest
element
universe,
however,
can
adsorb
on,
diffuse
into,
interact
with
many
metallic
materials,
degrading
their
mechanical
properties.
This
multifaceted
phenomenon
generically
categorized
as
embrittlement
(HE).
HE
one
most
complex
material
problems
that
arises
an
outcome
intricate
interplay
across
specific
spatial
temporal
scales
between
driving
force
resistance
fingerprinted
by
microstructures
subsequently
weakened
presence
hydrogen.
Based
on
recent
developments
field
well
our
collective
understanding,
this
Review
devoted
treating
whole
providing
constructive
systematic
discussion
entry,
diffusion,
trapping,
hydrogen-microstructure
interaction
mechanisms,
consequences
steels,
nickel
alloys,
aluminum
alloys
used
transport
storage.
emerging
systems,
such
high
entropy
additively
manufactured
also
discussed.
Priority
has
been
particularly
given
these
less
understood
aspects.
Combining
perspectives
materials
chemistry,
science,
mechanics,
artificial
intelligence,
aspires
present
comprehensive
impartial
viewpoint
existing
knowledge
conclude
forecasts
various
paths
forward
meant
fuel
exploration
future
research
regarding
hydrogen-induced
challenges.
International Journal of Hydrogen Energy,
Journal Year:
2024,
Volume and Issue:
63, P. 315 - 329
Published: March 19, 2024
Liquid
organic
hydrogen
carriers
(LOHC)
can
be
used
as
a
lossless
form
of
storage
at
ambient
conditions.
The
cycle
consists
the
exothermic
hydrogenation
hydrogen-lean
molecule
start
transport,
usually
production
site,
becoming
hydrogen-rich
molecule.
This
loaded
transported
long
distances
or
long-term
due
to
its
ability
not
lose
over
periods
time.
At
site
time
required
production,
released
through
an
endothermic
dehydrogenation
reaction.
LOHCs
show
similar
properties
crude
oils,
such
petroleum
and
diesel,
allowing
easy
handling
possibilities
integration
with
current
infrastructure.
Using
this
background,
paper
reviews
variety
aspects
LOHC
life
cycle,
focus
on
currently
studied
materials.
Important
factors
requirements
for
each
material
are
analysed
determine
their
in
scenarios.
Toluene
dibenzyltoluene
attractive
options
promising
attributes,
however
enthalpies
remain
problem.
economic
feasibility
being
delivery
device
were
briefly
analysed.
have
been
shown
cheapest
option
distance
transport
(>200
km),
cheaper
than
most
shorter
terms
specifically
costs.
major
capital
cost
chain
remains
initial
investment
raw
materials
equipment
performing
dehydrogenation.
Finally,
some
studies
developing
field
discussed,
microwave
enhancing
parts
process
mixing
acquire
more
advantageous
properties.
