Electrochemical hydrogen production: sustainable hydrogen economy
Green Chemistry,
Journal Year:
2023,
Volume and Issue:
25(23), P. 9543 - 9573
Published: Jan. 1, 2023
The
development
of
sustainable
energy
technologies
has
received
considerable
attention
to
meet
increasing
global
demands
and
realise
organisational
goals
(
e.g.
,
United
Nations,
the
Paris
Agreement)
carbon
neutrality.
Language: Английский
High-Performance Hydrogen-Selective Pd-Ag Membranes Modified with Pd-Pt Nanoparticles for Use in Steam Reforming Membrane Reactors
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(24), P. 17403 - 17403
Published: Dec. 12, 2023
A
unique
method
for
synthesizing
a
surface
modifier
metallic
hydrogen
permeable
membranes
based
on
non-classic
bimetallic
pentagonally
structured
Pd-Pt
nanoparticles
was
developed.
It
found
that
had
hollow
structures.
This
significantly
reduced
the
cost
of
their
production
due
to
economical
use
metal.
According
results
electrochemical
studies,
synthesized
Pd-Pt/Pd-Ag
showed
excellent
catalytic
activity
(up
60.72
mA
cm-2),
long-term
stability,
and
resistance
COads
poisoning
in
alkaline
oxidation
reaction
methanol.
The
membrane
with
highest
permeation
flux
density,
up
27.3
mmol
s-1
m-2.
obtained
density
two
times
higher
than
classic
Pdblack/Pd-Ag
an
order
magnitude
unmodified
membrane.
Since
rate
transcrystalline
transfer
through
increased,
while
speed
defects
remained
unchanged,
one
half
rise
selectivity
developed
recorded,
it
amounted
3514.
achieved
were
both
synergistic
effect
combination
Pd
Pt
metals
composition
large
number
available
catalytically
active
centers,
which
present
as
result
morphology
high-index
facets.
specific
faceting,
defect
structure,
unusual
properties
provide
great
opportunities
application
areas
reactors,
electrocatalysis,
petrochemical
industries.
Language: Английский
High-Performance Hydrogen-Selective Pd-Ag Membranes Modified with Pd-Pt Nanoparticles for Use in Steam Reforming Membrane Reactors
Published: Nov. 21, 2023
A
unique
method
for
synthesizing
a
surface
modifier
metallic
hydrogen
permeable
mem-branes
based
on
non-classic
bimetallic
pentagonally
structured
Pd-Pt
nanoparticles
has
been
de-veloped.
It
was
found
that
had
hollow
structure.
This
significantly
reduces
the
cost
of
their
production
due
to
economical
use
metal.
According
results
electro-chemical
studies,
synthesized
Pd-Pt/Pd-Ag
showed
excellent
catalytic
activi-ty
(up
60.72
mA
cm–2),
long-term
stability
and
resistance
COads
poisoning
in
alkaline
oxida-tion
reaction
methanol.
The
membrane
with
highest
permeation
flux
density
up
27.3
mmol
s–1
m–2.
Obtained
hy-drogen
were
2
times
higher
than
membranes
classic
Pdblack/Pd-Ag
an
order
magnitude
unmodified
membrane.
Since
rate
transcrystalline
transfer
through
increased,
while
speed
defects
remained
unchanged,
one
half
rise
selectivity
developed
recorded
it
amounted
3514.
Achieved
are
both
synergistic
effect
combination
Pd
Pt
metals
composition
large
number
available
catalytically
active
centers,
which
present
as
result
morphology
high-index
facets.
specific
faceting,
defect
structure
unusual
properties
provide
great
opportunities
application
areas
reac-tors,
electrocatalysis,
petrochemical
industries.
Language: Английский