ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(19), P. 24660 - 24670
Published: May 6, 2024
The
development
of
affordable,
highly
active,
and
stable
trifunctional
electrocatalysts
is
imperative
for
sustainable
energy
applications
such
as
overall
water
splitting
rechargeable
Zn–air
battery.
Herein,
we
report
a
composite
electrocatalyst
with
RuSe2
CoSe2
hybrid
nanoparticles
embedded
in
nitrogen-doped
carbon
(RuSe2CoSe2/NC)
synthesized
through
carbonization–adsorption–selenylation
strategy.
This
excellent
hydrogen
evolution
reaction
(HER),
oxygen
(OER),
reduction
(ORR)
activities.
An
in-depth
study
the
effect
Se
on
electrocatalytic
process
was
conducted.
Notably,
incorporation
moderately
adjusted
electronic
structure
Ru
Co,
enhancing
all
three
types
catalytic
performance
(HER,
η10
=
31
mV;
OER,
248
ORR,
E1/2
0.834
V)
under
alkaline
condition
accelerated
kinetics
improved
stability.
Density
functional
theory
(DFT)
calculation
reveals
that
(210)
crystal
facet
dominant
HER
active
site
it
exhibited
lowest
ΔGH*
value.
situ
Raman
spectra
unravel
local
environment
Co–Se
Ru–Se
bonds,
which
synergistically
promotes
formation
CoOOH
intermediate
during
OER.
superior
efficiency
remarkable
durability
RuSe2CoSe2/NC
an
electrode
zinc–air
battery
devices
demonstrate
its
great
potential
storage
conversion
devices.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(5)
Published: Oct. 19, 2023
Abstract
The
rational
design
and
steering
of
earth‐abundant,
efficient,
stable
electrocatalysts
for
hydrogen
generation
is
highly
desirable
but
challenging
with
catalysts
free
platinum
group
metals
(PGMs).
Mass
production
high‐purity
fuel
from
seawater
electrolysis
presents
a
transformative
technology
sustainable
alternatives.
Here,
heterostructure
molybdenum
selenide‐nickel
selenide
(Mo
3
Se
4
‐NiSe)
core–shell
nanowire
arrays
constructed
on
nickel
foam
by
single‐step
in
situ
hydrothermal
process
reported.
This
tiered
structure
provides
improved
intrinsic
activity
high
electrical
conductivity
efficient
charge
transfer
endows
excellent
evolution
reaction
(HER)
alkaline
natural
conditions.
Mo
‐NiSe
freestanding
electrodes
require
small
overpotentials
84.4
166
mV
to
reach
current
density
10
mA
cm
−2
electrolytes,
respectively.
It
maintains
an
impressive
balance
between
electrocatalytic
stability.
Experimental
theoretical
calculations
reveal
that
the
interface
abundant
active
sites
HER
process,
which
modulate
binding
energies
adsorbed
species
decrease
energetic
barrier,
providing
new
route
state‐of‐the‐art,
PGM‐free
electrolysis.
Renewable and Sustainable Energy Reviews,
Journal Year:
2024,
Volume and Issue:
195, P. 114320 - 114320
Published: Feb. 23, 2024
Hydrogen
is
envisaged
to
play
a
major
role
in
decarbonizing
our
future
energy
systems.
ideal
for
storing
renewable
over
longer
durations,
strengthening
security.
It
can
be
used
provide
electricity,
heat,
power
long-haul
transport,
shipping,
and
aviation,
several
industrial
processes.
The
cost
of
green
hydrogen
produced
from
via
electrolysis
dominated
by
the
electricity
used.
Operating
electrolyzers
only
during
periods
low
prices
will
limit
production
capacity
underutilize
high
investment
costs
electrolyzer
plants.
deep
offshore
wind
promising
solution
unlock
affordable
electrolytic
at
scale.
Deep
locations
result
an
increased
factor
generated
60–70%,
4–5
times
that
onshore
locations.
Dedicated
farms
use
majority
>80%
generate
economical
hydrogen.
In
some
scenarios,
optimal
carrier
transport
onshore.
This
review
discusses
opportunities
challenges
using
seawater.
includes
impact
site
selection,
size
electrolyzer,
direct
seawater
without
deionization.
compares
overall
system
efficiency,
cost,
lifetime
when
operating
with
feed
deionized
water
reverse
osmosis
flash
evaporation
short
medium
term,
it
advised
install
plant
ion
exchanger
instead
directly.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(30)
Published: May 28, 2024
Abstract
The
oxygen
evolution
reaction
(OER)
and
reduction
(ORR)
are
cornerstone
half
reactions
involved
in
many
renewable
energy
technologies.
High‐density
single‐atom
catalysts
maximize
the
atom
utilization
isolated
active
sites.
Furthermore,
introduction
of
pyri‐N
into
carbon‐based
nanostructures
as
an
electrocatalyst
creates
abundance
Here,
innovative
strategy
is
reported
based
on
atomic
scale
dispersion
Co
atoms
enriched
carbon
nanotube
encapsulated
Ni
nanoparticles
grown
3D
electrospun
nanofiber
nano‐assemblies.
Notably,
SA
Ni‐NCNT/CNF
exhibited
excellent
OER
ORR
activity
terms
low
overpotentials
higher
half‐wave
potentials.
atomically
distributed
allows
maximum
exposure
sites
dominated
multidimensional
skeleton,
synergistic
effects
with
greatly
reduced
delocalization
around
metal
centers
provided
ideal
environment
for
interactions
intermediates,
thus
facilitating
4e
−
pathway,
evidenced
by
DFT
calculations.
Moreover,
Zn‐air
batteries
using
a
air
cathode
high‐power
density
admirable
specific
capacity.
This
studies
may
provide
avenue
rational
modulation
cost‐effective,
large‐scale
synthesis
bifunctional
electrocatalysts
rechargeable
anion
exchange
membrane
fuel
cell.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(19), P. 6897 - 6942
Published: Jan. 1, 2024
This
review
focuses
on
the
latest
developments
in
direct
seawater
electrolysis,
specifically
electrocatalysts,
hybrid
anodic
oxidation,
and
electrolyzers,
providing
a
glimpse
into
future
of
environmentally
friendly
hydrogen
generation.
Energy Advances,
Journal Year:
2024,
Volume and Issue:
3(6), P. 1144 - 1166
Published: Jan. 1, 2024
It
is
imperative
to
transition
towards
sustainable
energy
sources
mitigate
the
escalating
threat
of
global
warming
and
ameliorate
adverse
impacts
climatic
changes.
