Carbon Energy,
Journal Year:
2023,
Volume and Issue:
6(1)
Published: July 27, 2023
Abstract
Single‐atom
catalysts
(SACs)
have
gained
substantial
attention
because
of
their
exceptional
catalytic
properties.
However,
the
high
surface
energy
limits
synthesis,
thus
creating
significant
challenges
for
further
development.
In
last
few
years,
metal–organic
frameworks
(MOFs)
received
consideration
as
ideal
candidates
synthesizing
SACs
due
to
tailorable
chemistry,
tunable
morphologies,
porosity,
and
chemical/thermal
stability.
From
this
perspective,
review
thoroughly
summarizes
previously
reported
methods
possible
future
approaches
constructing
MOF‐based
(MOF‐derived‐supported
MOF‐supported)
SACs.
Then,
SAC's
identification
techniques
are
briefly
assessed
understand
coordination
environments,
local
electronic
structures,
spatial
distributions,
catalytic/electrochemical
reaction
mechanisms.
This
systematically
highlights
several
photocatalytic
electrocatalytic
applications
conversion
storage,
including
hydrogen
evolution
reactions,
oxygen
O
2
/CO
/N
reduction
fuel
cells,
rechargeable
batteries.
Some
light
is
also
shed
on
development
highly
exciting
field
by
highlighting
advantages
limitations
eScience,
Journal Year:
2021,
Volume and Issue:
1(1), P. 69 - 74
Published: Sept. 21, 2021
Electrochemical
water
splitting
is
a
sustainable
and
feasible
strategy
for
hydrogen
production
but
hampered
by
the
sluggish
anodic
oxygen
evolution
reaction
(OER).
Herein,
an
effective
approach
introduced
to
significantly
decrease
cell
voltage
replacing
OER
with
urea
oxidation
(UOR).
A
Ni2P/NiMoP
nanosheet
catalyst
hierarchical
architecture
uniformly
grown
on
nickel
foam
(NF)
substrate
through
simple
hydrothermal
phosphorization
method.
The
achieves
impressive
HER
activity,
low
overpotential
of
only
22
mV
at
10
mA
cm–2
Tafel
slope
34.5
dec–1.
In
addition,
reduced
from
1.49
V
1.33
after
introduction
0.33
M
urea.
Notably,
two-electrode
electrolyzer
employing
as
bifunctional
exhibits
current
density
1.35
excellent
long-term
durability
80
h.
Energy & environment materials,
Journal Year:
2022,
Volume and Issue:
6(5)
Published: May 28, 2022
Electrochemical
water
splitting
represents
one
of
the
most
promising
technologies
to
produce
green
hydrogen,
which
can
help
realize
goal
achieving
carbon
neutrality.
While
substantial
efforts
on
a
laboratory
scale
have
been
made
for
understanding
fundamental
catalysis
and
developing
high‐performance
electrocatalysts
two
half‐reactions
involved
in
electrocatalysis,
much
less
attention
has
paid
doing
relevant
research
larger
scale.
For
example,
few
such
researches
done
an
industrial
Herein,
we
review
very
recent
endeavors
bridge
gaps
between
applications
electrolysis.
We
begin
by
introducing
fundamentals
electrochemical
then
present
comparisons
testing
protocol,
figure
merit,
catalyst
interest,
manufacturing
cost
industry‐based
water‐electrolysis
research.
Special
is
tracking
surface
reconstruction
process
identifying
real
catalytic
species
under
different
conditions,
highlight
significant
distinctions
corresponding
mechanisms.
Advances
designs
industry‐relevant
electrolysis
are
also
summarized,
reveal
progress
moving
practical
forward
accelerating
synergies
material
science
engineering.
Perspectives
challenges
electrocatalyst
design
strategies
proposed
finally
further
lab‐scale
large‐scale
electrocatalysis
applications.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
61(51)
Published: Oct. 6, 2022
Abstract
The
electrochemical
oxidation
of
small
molecules
to
generate
value‐added
products
has
gained
enormous
interest
in
recent
years
because
the
advantages
benign
operation
conditions,
high
conversion
efficiency
and
selectivity,
absence
external
oxidizing
agents,
eco‐friendliness.
Coupling
replace
oxygen
evolution
reaction
(OER)
at
anode
hydrogen
(HER)
cathode
an
electrolyzer
would
simultaneously
realize
generation
high‐value
chemicals
or
pollutant
degradation
highly
efficient
production
hydrogen.
This
Minireview
presents
introduction
on
small‐molecule
choice
design
strategies
electrocatalysts
as
well
breakthroughs
achieved
Finally,
challenges
future
orientations
are
highlighted.
Carbon Neutrality,
Journal Year:
2022,
Volume and Issue:
1(1)
Published: June 2, 2022
Hydrogen,
as
a
clean
energy
carrier,
is
of
great
potential
to
be
an
alternative
fuel
in
the
future.
Proton
exchange
membrane
(PEM)
water
electrolysis
hailed
most
desired
technology
for
high
purity
hydrogen
production
and
self-consistent
with
volatility
renewable
energies,
has
ignited
much
attention
past
decades
based
on
current
density,
greater
efficiency,
small
mass-volume
characteristic,
easy
handling
maintenance.
To
date,
substantial
efforts
have
been
devoted
development
advanced
electrocatalysts
improve
electrolytic
efficiency
reduce
cost
PEM
electrolyser.
In
this
review,
we
firstly
compare
alkaline
(AWE),
solid
oxide
(SOE),
highlight
advantages
electrolysis.
Furthermore,
summarize
recent
progress
including
evolution
reaction
(HER)
oxygen
(OER)
acidic
electrolyte.
We
also
introduce
other
cell
components
(including
electrode
assembly,
collector,
bipolar
plate).
Finally,
challenges
outlook
future
application
are
provided.
ACS Catalysis,
Journal Year:
2023,
Volume and Issue:
13(7), P. 4091 - 4100
Published: March 9, 2023
The
urea
oxidation
reaction
(UOR)
is
considered
as
an
alternative
to
the
oxygen
evolution
for
high-efficiency
hydrogen
production.
However,
molecule
relatively
complex,
containing
both
electron-donating
amino
(−NH2)
and
electron-withdrawing
carbonyl
(C═O)
groups,
understanding
influence
of
different
functional
groups
on
adsorption
behavior
conducive
rational
design
preparation
high-performance
UOR
catalysts.
Herein,
we
report
a
simple
synthesis
Ni3N/Mo2N
heterostructure
systematic
investigation
urea-assisted
electrolytic
Both
temperature-programmed
desorption
theoretical
calculations
decipher
that
−NH2
C═O
are
more
easily
adsorbed
Ni3N
Mo2N,
respectively.
Meanwhile,
could
combine
enhance
advantages
individual
components,
optimizing
urea.
Besides,
this
also
beneficial
improving
performance.
As
expected,
in
two-electrode
water
electrolyzer
utilizing
bifunctional
catalysts,
production
can
readily
occur
at
evidently
lower
voltage
(1.36
V@10
mA
cm–2),
which
much
than
traditional
electrolysis,
well
7
times
higher
rate
achieved.
ACS Catalysis,
Journal Year:
2023,
Volume and Issue:
13(3), P. 1759 - 1790
Published: Jan. 17, 2023
Metal–organic
frameworks
(MOFs)
have
extensively
emerged
as
promising
templates/precursors
to
prepare
functional
derivatives
for
various
purposes
because
of
their
ultrahigh
porosity,
large
specific
surface
area,
and
excellent
user-configuration
flexibility.
Among
these
derivatives,
MOFs-derived
metal/carbon
composites
surmount
the
shortcomings
individual
components
produce
synergistic
effects,
showing
great
potential
in
environmental
remediation
energy
storage
conversion.
Herein,
this
work
systematically
discusses
synthetic
strategies
from
perspective
different
MOF
precursors,
including
pristine
MOFs,
heteroatom-doped
MOFs
composited
with
substrates.
The
unique
advantages
exceptional
stability,
conductivity,
catalytic
activity
are
then
particularly
summarized.
On
basis
advantages,
recent
progress
environment
fields
is
elaborated,
special
emphasis
on
elucidation
mechanisms.
Finally,
challenges
opportunities
future
research
presented,
which
expected
provide
references
design
multipurpose
composites.
