Materials,
Journal Year:
2024,
Volume and Issue:
17(23), P. 5885 - 5885
Published: Nov. 30, 2024
A
new
method
is
proposed
to
generate
hydrogen
in
situ
at
low
pressure
from
powder-pressed
recycled
aluminum
turnings
activated
with
small
amounts
of
NaOH
and
drops
water.
The
contribution
this
system
that
the
user
can
obtain
flows
high-purity
(>99%)
charge
their
portable
electronic
devices
remote
places,
a
simple,
controlled,
safe
way,
since
only
water
used.
Test
tubes
contain
tiny
on
surface
be
transported
used
without
contact.
In
addition
being
safer
system,
smaller
amount
needed
compared
other
systems,
there
no
need
preheat
water,
even
heat.
As
feeding
drop
by
drop,
flow
easily
controlled
manual
or
automatic
dosing.
waste
obtained
solid
contains
mostly
hydroxide
some
impurities
origin,
which
are
easy
sell
recycle.
study
has
been
carried
out
optimize
type
test
establish
critical
parameters.
results
show
constant
controllable
rate
depending
drip
frequency
where
chemical
reaction
predominates
over
diffusion,
optimal
20
wt%,
finer
grain
size
increase
H
Metals,
Journal Year:
2024,
Volume and Issue:
14(10), P. 1142 - 1142
Published: Oct. 8, 2024
Mg-based
alloy
anodes
suffer
from
severe
corrosion
in
alkaline
electrolytes,
which
substantially
impedes
their
cycle
life
and
thereby
limits
suitability
as
anode
materials
for
nickel–metal
hydride
(Ni-MH)
batteries.
This
work
modifies
the
conventional
6
M
KOH
electrolyte
by
adding
0.1
Al2(SO4)3·18H2O.
The
electrochemical
hydrogen
storage
properties
of
Mg0.45Ti0.05Ni0.50
this
its
microstructural
evolution
during
cycling
are
studied.
In
+
Al2(SO4)3·18H2O
electrolyte,
a
protective
layer
consisting
Mg2Al(OH)7
is
formed
on
surface
charge/discharge
instead
Mg(OH)2,
effectively
preventing
further
improving
life.
delivers
maximum
discharge
capacity
479.0
mAh
g−1
maintains
318.4
after
30
cycles
significantly
superior
to
that
achieved
(471.1
201.8
g−1,
respectively).
provides
new
strategy
stability
anodes.
Materials,
Journal Year:
2024,
Volume and Issue:
17(23), P. 5885 - 5885
Published: Nov. 30, 2024
A
new
method
is
proposed
to
generate
hydrogen
in
situ
at
low
pressure
from
powder-pressed
recycled
aluminum
turnings
activated
with
small
amounts
of
NaOH
and
drops
water.
The
contribution
this
system
that
the
user
can
obtain
flows
high-purity
(>99%)
charge
their
portable
electronic
devices
remote
places,
a
simple,
controlled,
safe
way,
since
only
water
used.
Test
tubes
contain
tiny
on
surface
be
transported
used
without
contact.
In
addition
being
safer
system,
smaller
amount
needed
compared
other
systems,
there
no
need
preheat
water,
even
heat.
As
feeding
drop
by
drop,
flow
easily
controlled
manual
or
automatic
dosing.
waste
obtained
solid
contains
mostly
hydroxide
some
impurities
origin,
which
are
easy
sell
recycle.
study
has
been
carried
out
optimize
type
test
establish
critical
parameters.
results
show
constant
controllable
rate
depending
drip
frequency
where
chemical
reaction
predominates
over
diffusion,
optimal
20
wt%,
finer
grain
size
increase
H
