Small Structures,
Journal Year:
2023,
Volume and Issue:
4(9)
Published: April 25, 2023
Developing
robust
nonprecious
metal‐based
electrocatalysts
toward
hydrogen
evolution
reaction
is
crucial
for
large‐scale
production
via
electrochemical
water
splitting.
Herein,
surface
high‐entropy
NiFeCoCuTi
alloy
on
column‐nanostructured
nanoporous
Ni
skeleton
reported
as
multisite
electrocatalyst
highly
efficient
in
nonacidic
environments
by
making
use
of
heterogeneous
atoms
with
distinct
and
hydroxyl
adsorption
behaviors
to
accelerate
dissociation
mediate
intermediates
combination
into
molecules.
Associated
the
that
facilitates
electron
transfer/mass
transportation
enables
accessible
abundant
electroactive
sites,
self‐supported
monolithic
electrode
exhibits
superior
(HER)
electrocatalysis,
low
onset
overpotentials
Tafel
slopes.
It
only
takes
overpotential
≈209
mV
deliver
ultrahigh
current
density
2
A
cm
−2
,
along
exceptional
stability
more
than
240
h,
1
m
KOH
electrolyte.
These
outstanding
properties
make
(HEA)
attractive
candidate
cathode
material
electrolysis
suggest
HEAs
ideal
platform
develop
electrocatalysts.
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
34(52)
Published: March 31, 2022
Abstract
As
a
class
of
porous
materials
with
crystal
lattices,
metal–organic
frameworks
(MOFs),
featuring
outstanding
specific
surface
area,
tunable
functionality,
and
versatile
structures,
have
attracted
huge
attention
in
the
past
two
decades.
Since
first
conductive
MOF
is
successfully
synthesized
2009,
considerable
progress
has
been
achieved
for
development
MOFs,
allowing
their
use
diverse
applications
electrochemical
energy
storage.
Among
those
applications,
supercapacitors
received
great
interest
because
high
power
density,
fast
charging
ability,
excellent
cycling
stability.
Here,
efforts
hitherto
devoted
to
synthesis
design
MOFs
auspicious
capacitive
performance
are
summarized.
Using
as
unique
platform
medium,
electronic
molecular
aspects
storage
mechanism
electrodes
discussed,
highlighting
advantages
limitations
inspire
new
ideas
supercapacitors.
Accounts of Materials Research,
Journal Year:
2022,
Volume and Issue:
3(6), P. 584 - 596
Published: May 17, 2022
ConspectusRecent
decades
have
witnessed
the
rapid
development
of
catalytic
science,
especially
after
Taylor
and
Armstrong
proposed
notion
"active
site"
in
1925.
By
optimizing
reaction
paths
reducing
activation
energies
reactions,
catalysts
appear
more
than
90%
chemical
production
involving
homogeneous
catalysis,
heterogeneous
enzyme
catalysis.
Because
100%
efficiency
active
atom
utilization
adjustable
microenvironment
metal
centers,
single-atom
(SACs)
shine
various
fields
for
enhancing
rate,
conversion,
selectivity
reactions.
Nevertheless,
a
solo
site
determines
fixed
adsorption
mode,
intermediates
from
multistep
reactions
linking
with
are
related
to
each
other.
For
specific
reaction,
it
is
almost
impossible
optimally
adjust
every
intermediate
on
simultaneously.
This
phenomenon
termed
scaling
relationship
limit
(SRL)
an
unavoidable
obstacle
pure
SACs.Dual-atom
(DACs),
perfectly
inheriting
advantages
SACs,
can
exhibit
better
performance
simple
SACs
thus
gradually
gained
researchers'
attention.
Depending
dual-metal
structure,
sites
(DMSs)
DACs
be
divided
into
two
separated
heterometal
sites,
linked
homometal
sites.
Two
prescribe
distance
between
electron
interaction.
Currently,
origins
summarized
following
three
points:
(1)
electronic
effect,
which
only
one
center
serves
as
other
plays
regulatory
role;
(2)
synergistic
centers
separately
catalyze
different
core
steps
improve
together;
(3)
offering
additional
changes
structures
break
SRL
based
SACs.
Among
origins,
structure
upon
DMSs
most
effective
technologies
boost
property
basis
To
date,
few
contributions
focused
catalysis
environments,
including
O2
reduction
evolution
H2
CO2
N2
conversion
reactions.In
this
Account,
summary
recent
progress
regarding
will
presented.
First,
unpopular
discovery
research
hot
spot
illustrated
through
timeline.
In
next
section,
categories,
potential
revealed
by
comparison
addition,
techniques
constructing
systematically
summarized,
preparation
carbonous,
pyrolysis-free,
noncarbon-supported,
complex-type
DACs.
Furthermore,
underlying
energy-
environment-related
introduced
detail
assistance
theoretical
calculations.
Finally,
we
affirm
contribution
particularly
electrocatalysis,
provide
outlook
direction
discussing
major
challenges.
It
anticipated
that
Account
inspire
researchers
propel
advance
Industrial Chemistry and Materials,
Journal Year:
2023,
Volume and Issue:
1(1), P. 9 - 38
Published: Jan. 1, 2023
Recent
progress
of
metal–organic
framework
(MOF)
based
catalysts
in
the
electrocatalytic
hydrogen
evolution
reaction,
oxidation
oxygen
reduction
reaction
and
nitrogen
is
summarized.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
33(1)
Published: Oct. 26, 2022
Abstract
Designing
well‐defined
interfacial
chemical
bond
bridges
is
an
effective
strategy
to
optimize
the
catalytic
activity
of
metal–organic
frameworks
(MOFs),
but
it
remains
challenging.
Herein,
a
facile
in
situ
growth
reported
for
synthesis
tightly
connected
2D/2D
heterostructures
by
coupling
MXene
with
CoBDC
nanosheets.
The
multifunctional
nanosheets
high
conductivity
and
ideal
hydrophilicity
as
bridging
carriers
can
ensure
structural
stability
sufficient
exposure
active
sites.
Moreover,
Co–O–Ti
formed
at
interface
effectively
triggers
charge
transfer
modulates
electronic
structure
Co‐active
site,
which
enhances
reaction
kinetics.
As
result,
optimized
CoBDC/MXene
exhibits
superior
hydrogen
evolution
(HER)
low
overpotentials
29,
41,
76
mV
10
mA
cm
−2
alkaline,
acidic,
neutral
electrolytes,
respectively,
comparable
commercial
Pt/C.
Theoretical
calculation
demonstrates
that
bridging‐induced
electron
redistribution
optimizes
free
energy
water
dissociation
adsorption,
resulting
improved
evolution.
This
study
not
only
provides
novel
electrocatalyst
efficient
HER
all
pH
conditions
also
opens
up
new
avenue
designing
highly
systems.
Chemical Society Reviews,
Journal Year:
2023,
Volume and Issue:
52(9), P. 3170 - 3214
Published: Jan. 1, 2023
An
exclusive
review
focusing
on
catalysts
exhibiting
the
dinuclear
metal
synergistic
catalysis
(DMSC)
effect
for
energy
conversion
reactions
is
presented.