Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: July 5, 2024
Green
hydrogen
from
electrolysis
of
water
has
attracted
widespread
attention
as
a
renewable
power
source.
Among
several
production
methods,
it
become
the
most
promising
technology.
However,
there
is
no
large-scale
system
currently
that
can
compete
with
conventional
fossil
fuel
production.
Renewable
energy
electrocatalytic
splitting
an
ideal
technology
environmental
cleanliness
protection
and
good
purity,
which
meet
requirements
future
development.
This
review
summarizes
introduces
current
status
by
three
aspects:
electricity,
catalyst
electrolyte.
In
particular,
present
situation
latest
progress
key
sources
power,
catalytic
materials
electrolyzers
for
are
introduced.
Finally,
problems
generation
electrolytic
directions
next-generation
green
in
discussed
outlooked.
It
expected
this
will
have
important
impact
on
field
water.
Nano Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 6, 2025
Water
dissociation
in
anion
exchange
membrane
water
electrolysis
(AEMWE)
faces
significant
energy
barriers,
posing
a
challenge
for
reducing
cell
voltage.
Herein,
we
engineered
CoP
nanosheets
by
doping
Er
and
hybridizing
with
NiCoP
to
optimize
local
electronic
states
accelerate
H2O
during
the
hydrogen
evolution
reaction.
The
resulting
Er0.1-CoP/NiCoP
catalyst
achieves
low
overpotential
of
154
mV
at
-500
mA
cm-2
1.0
M
KOH.
An
AEM
electrolyzer
comprising
an
Er0.1-CoP/NiCoP@NF
cathode
demonstrates
voltage
1.672
V
stability
exceeding
1000
h
500
(50
°C).
Characterization,
density
functional
theory
(DFT)
calculations,
ab
initio
molecular
dynamics
(AIMD)
simulations
reveal
that
hybridization
synergistically
modulate
charge
distribution
across
multisites,
shifting
p-band
centers
away
from
Fermi
level.
These
adjustments
free
H*
adsorption
(ΔGH*)
improve
OH*/H2O*
adsorption,
thereby
facilitating
H2
evolution.
Energy & environment materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 23, 2025
An
in‐depth
understanding
of
the
catalyst
surface
evolution
is
crucial
for
precise
control
active
sites,
yet
this
aspect
has
often
been
overlooked.
This
study
reveals
spontaneous
anion
regulation
mechanism
Br‐doped
CoP
electrocatalysts
in
alkaline
hydrogen
reaction
(HER)
and
oxygen
(OER).
The
introduction
Br
modulates
electronic
structure
Co
site,
endowing
Br‐CoP
with
a
more
metallic
character.
In
addition,
P
ion
leaching
promotes
situ
reconstruction
Br‐CoOOH,
which
real
site
OER
reaction.
Meanwhile,
HER
situation
different.
On
basis
leaching,
ions
formation
CoP‐Co(OH)
2
species.
doping
enhances
adsorption
*H,
showing
excellent
H
free
energy,
thereby
greatly
improving
activity.
Simultaneously,
it
also
OOH*,
effectively
facilitating
occurrence
reactions.
only
needs
261
76
mV
overpotential
to
drive
current
density
20
mA
cm
−2
10
,
can
be
maintained
unchanged
100
h.
provides
new
insights
into
strategies
mechanisms.
