Angewandte Chemie International Edition,
Год журнала:
2020,
Номер
59(50), С. 22743 - 22748
Опубликована: Сен. 9, 2020
Vacancy
engineering
plays
vital
role
in
the
design
of
high-performance
electrocatalysts.
Here,
we
introduced
coupled
cation-vacancy
pairs
Ni-doped
CoSe
to
achieve
boosted
hydrogen
evolution
reaction
(HER)
activity
through
a
facile
topochemical
intercalation
approach.
Adjacent
Co
vacancy
and
heteroatom
Ni
doping
contribute
together
for
upshift
Se
4pz
orbital,
which
induces
larger
overlap
between
4p
H
1s
orbitals.
As
result,
free
energy
adsorption
can
be
lowered
significantly.
With
an
advanced
HER
185.7
mV
at
10
mA
cm-2
,
this
work
provides
new
direction
guidance
novel
Abstract
Continuing
population
growth
and
accelerated
fossil‐fuel
consumption
with
recent
technological
advancements
have
engendered
energy
environmental
concerns,
urging
researchers
to
develop
advanced
functional
materials
overcome
the
associated
problems.
Metal–organic
frameworks
(MOFs)
emerged
as
frontier
due
their
unique
porous
organic–inorganic
hybrid
periodic
assembly
exceptional
diversity
in
structural
properties
chemical
functionalities.
In
particular,
modular
nature
modularity‐dependent
activity
of
MOFs
MOF
derivatives
accentuated
delicate
atomic‐
molecular
design
synthesis
MOFs,
meticulous
conversion
into
carbons
transition‐metal‐based
materials.
Synthetic
control
over
framework
architecture,
content,
reactivity
has
led
unprecedented
merits
relevant
various
applications.
Herein,
an
overview
molecular‐design
strategies
realize
application‐targeted
is
provided.
Recent
progress
on
development
based
these
strategies,
along
performance,
summarized
a
special
emphasis
design–structure
functionality–activity
relationships.
Next,
respective
energy‐
environmental‐related
applications
catalysis
storage,
well
gas
storage‐separation
water
harvesting
close
association
energy–water–environment
nexus
are
highlighted.
Last,
perspectives
current
challenges
recommendations
for
further
MOF‐based
also
discussed.
The
photoelectrochemical
(PEC)
cell
that
collects
and
stores
abundant
sunlight
to
hydrogen
fuel
promises
a
clean
renewable
pathway
for
future
energy
needs
challenges.
Monoclinic
bismuth
vanadate
(BiVO4
),
having
an
earth-abundancy,
nontoxicity,
suitable
optical
absorption,
ideal
n-type
band
position,
has
been
in
the
limelight
decades.
BiVO4
is
potential
photoanode
candidate
due
its
favorable
outstanding
features
like
moderate
bandgap,
visible
light
activity,
better
chemical
stability,
cost-effective
synthesis
methods.
However,
suffers
from
rapid
recombination
of
photogenerated
charge
carriers
have
impeded
further
improvements
PEC
performances
stability.
This
review
presents
close
look
at
emerging
surface,
bulk,
interface
engineering
strategies
on
photoanode.
First,
effective
approach
surface
functionalization
via
different
cocatalysts
improve
kinetics
discussed.
Second,
state-of-the-art
methodologies
such
as
nanostructuring,
defect
engineering,
doping
enhance
absorption
transport
bulk
are
reviewed.
Third,
heterostructuring
separation
introduced.
Lastly,
perspectives
foremost
challenges
some
motivating
outlooks
encourage
research
progress
this
frontier
offered.