Molecules,
Journal Year:
2023,
Volume and Issue:
28(24), P. 8143 - 8143
Published: Dec. 18, 2023
Water
electrolysis
is
currently
a
major
technique
to
produce
clean
hydrogen,
which
regarded
as
promising
and
sustainable
energy
carrier.
The
efficiency
of
water
highly
dependent
on
the
oxygen
evolution
reaction
(OER)
anode.
evaluation
an
OER
electrocatalyst
frequently
carried
out
three-electrode
system
in
container
electrolyte.
Herein,
we
found
that
electrode
positions
electrolyte
could
significantly
affect
data
acquisition
performance.
After
detailed
investigation,
reveal
difference
activity
at
different
position
originated
from
their
iRu
drop
gas
diffusion
resistance.
For
first
time,
this
work
evokes
concerns
accurate
electrocatalysts
regarding
position.
fair
comparisons
reliable
results,
it
strongly
suggested
keep
unchanged
electrochemical
measurements.
In
addition,
establishment
standard
electrolyzer
setup
for
electrocatalysis
community
also
called
for.
New Journal of Chemistry,
Journal Year:
2024,
Volume and Issue:
48(22), P. 10133 - 10141
Published: Jan. 1, 2024
Using
a
simple
mist-CVD
route,
Ni/NiO/C
hollow
microspheres
were
fabricated
with
high
OER
activity,
employing
ethanolamine
and
nickel
chloride
as
precursors.
Journal of Applied Physics,
Journal Year:
2024,
Volume and Issue:
136(17)
Published: Nov. 1, 2024
The
electrocatalytic
performance
of
VSe2
doped
with
nonmetals
(NMs)
was
studied
using
density
functional
theory,
in
which
NM
atoms
(C,
N,
O,
P,
S,
F,
Cl,
Br,
and
I)
replaced
Se
or
V
(denoted
as
NM@Se
NM@V).
Notably,
P@V
Br@V
monolayers
exhibit
high
catalytic
hydrogen
evolution
reaction
activity
the
lowest
ΔGH*
=
0.08
eV
−0.03
eV,
respectively,
surpassing
Pt
(ΔGH*
−0.1
eV).
By
applying
scaling
relationship
H*,
is
an
intermediate
for
each
volcano,
exchange
current
diagrams
are
established.
Based
on
thermodynamic
analysis,
produce
currents
about
−1.42
−0.70i0/(A
cm−2),
respectively.
oxygen
I@Se
monolayer
(ηOER
0.95
V)
best
among
all
monolayers.
Among
reduction
catalysts,
O@Se
displays
a
low
ηORR
(0.82
V),
even
better
than
that
binary
Pd
alloys
(0.9–0.87
V).
