Environmental Research Letters,
Год журнала:
2023,
Номер
18(6), С. 063002 - 063002
Опубликована: Май 16, 2023
Abstract
Agriculture
accounts
for
12%
of
global
annual
greenhouse
gas
(GHG)
emissions
(7.1
Gt
CO
2
equivalent),
primarily
through
non-CO
emissions,
namely
methane
(54%),
nitrous
oxide
(28%),
and
carbon
dioxide
(18%).
Thus,
agriculture
contributes
significantly
to
climate
change
is
impacted
by
its
consequences.
Here,
we
present
a
review
technologies
innovations
reducing
GHG
in
agriculture.
These
include
decarbonizing
on-farm
energy
use,
adopting
nitrogen
fertilizers
management
technologies,
alternative
rice
cultivation
methods,
feeding
breeding
enteric
methane.
Combined,
all
these
measures
can
reduce
agricultural
up
45%.
However,
residual
3.8
equivalent
per
year
will
require
offsets
from
removal
make
net-zero.
Bioenergy
with
capture
storage
enhanced
rock
weathering
are
particularly
promising
techniques,
as
they
be
implemented
within
result
permanent
sequestration.
While
net-zero
technically
available,
come
price
premium
over
the
status
quo
have
limited
adoption.
Further
research
development
needed
such
more
affordable
scalable
understand
their
synergies
wider
socio-environmental
impacts.
With
support
incentives,
transition
significant
emitter
sink.
This
study
may
serve
blueprint
identify
areas
where
further
investments
accelerate
Deleted Journal,
Год журнала:
2022,
Номер
1, С. e9120010 - e9120010
Опубликована: Май 30, 2022
To
restore
the
natural
nitrogen
cycle
(N-cycle),
artificial
N-cycle
electrocatalysis
with
flexibility,
sustainability,
and
compatibility
can
convert
intermittent
renewable
energy
(e.g.,
wind)
to
harmful
or
value-added
chemicals
minimal
carbon
emissions.
The
background
of
such
N-cycles,
as
fixation,
ammonia
oxidation,
nitrate
reduction,
is
briefly
introduced
here.
discussion
emerging
nanostructures
in
various
conversion
reactions
focused
on
architecture/compositional
design,
electrochemical
performances,
reaction
mechanisms,
instructive
tests.
Energy
device
advancements
for
achieving
more
functions
well
in
situ/operando
characterizations
toward
understanding
key
steps
are
also
highlighted.
Furthermore,
some
recently
proposed
less
discussed
C–N
coupling
summarized.
We
classify
inorganic
sources
that
each
other
under
an
applied
voltage
into
three
types,
namely,
abundant
nitrogen,
toxic
(nitrite),
oxides,
useful
compounds
ammonia,
hydrazine,
hydroxylamine,
goal
providing
critical
insights
strategies
facilitate
development
our
circular
economy.
ACS Energy Letters,
Год журнала:
2021,
Номер
6(10), С. 3676 - 3685
Опубликована: Сен. 24, 2021
Access
to
nitrogen-based
fertilizers
is
critical
maximize
agricultural
yield,
as
nitrogen
the
most
common
rate-limiting
nutrient.
Nearly
all
rely
on
ammonia
and
nitric
acid
feedstocks,
thus
demand
for
these
chemicals
heavily
dependent
global
population
food
demand.
Over
next
three
decades,
will
continue
dictate
market
size
value
acid,
which
consequently
have
a
significant
impact
our
energy
infrastructure.
Here,
we
discuss
potential
carbon-free
electrocatalytic
reduction,
oxidation,
nitrate
reduction
meet
fertilizer
manufacturing
demands.
We
also
explore
various
growth
scenarios
predict
2050
acid.
highlight
that
if
current
approaches
remain
constant,
carbon
emissions
from
production
of
fixed
feedstocks
could
exceed
1300
MtCO2eq/yr,
prompting
strong
need
green
alternatives.
Advanced Functional Materials,
Год журнала:
2021,
Номер
31(47)
Опубликована: Авг. 26, 2021
Abstract
High‐entropy
alloys
(HEAs)
have
attracted
widespread
attention
in
electrocatalysis
due
to
their
unique
advantages
(adjustable
composition,
complex
surface,
high
tolerance,
etc.).
They
allow
for
the
formation
of
new
and
tailorable
active
sites
multiple
elements
adjacent
each
other,
interaction
can
be
tailored
by
rational
selection
element
configuration
composition.
However,
it
needs
further
explored
catalyst
design,
elements,
determination
sites.
This
review
article
focuses
on
important
progress
multi‐sites
HEAs.
The
classification
is
done
basis
catalytic
reaction,
including
hydrogen
evolution
oxygen
reduction
alcohol
oxidation
carbon
dioxide
nitrogen
reaction.
Based
experiments
theories,
a
more
in‐depth
exploration
activity
HEAs
will
conducted,
(the
special
role
catalysis)
effect.
provide
design
some
reactions,
adjust
compositions
improve
intrinsic
activity.
Furthermore,
remaining
challenges
future
directions
promising
research
fields
are
also
provided.
Science,
Год журнала:
2021,
Номер
374(6575), С. 1593 - 1597
Опубликована: Дек. 23, 2021
Owing
to
the
worrying
increase
in
carbon
dioxide
concentrations
atmosphere,
there
is
a
need
electrify
fossil-fuel–powered
chemical
processes
such
as
Haber-Bosch
ammonia
synthesis.
Lithium-mediated
electrochemical
nitrogen
reduction
has
shown
preliminary
promise
but
still
lacks
sufficient
faradaic
efficiency
and
formation
rate
be
industrially
relevant.
Here,
we
show
that
oxygen,
previously
believed
hinder
reaction,
actually
greatly
improves
stability
of
lithium-mediated
when
added
reaction
atmosphere
small
amounts.
With
this
counterintuitive
discovery,
reach
record
high
efficiencies
up
78.0
±
1.3%
at
0.6
0.8
mole
%
oxygen
20
bar
nitrogen.
Experimental
x-ray
analysis
theoretical
microkinetic
modeling
shed
light
on
underlying
mechanism.
Chemical Reviews,
Год журнала:
2022,
Номер
122(24), С. 17241 - 17338
Опубликована: Ноя. 1, 2022
Current
energy
and
environmental
challenges
demand
the
development
design
of
multifunctional
porous
materials
with
tunable
properties
for
catalysis,
water
purification,
conversion
storage.
Because
their
amenability
to
de
novo
reticular
chemistry,
metal-organic
frameworks
(MOFs)
have
become
key
in
this
area.
However,
usefulness
is
often
limited
by
low
chemical
stability,
conductivity
inappropriate
pore
sizes.
Conductive
two-dimensional
(2D)
robust
structural
skeletons
and/or
functionalized
surfaces
can
form
stabilizing
interactions
MOF
components,
enabling
fabrication
nanocomposites
characteristics.
Graphene
its
functional
derivatives
are
largest
class
2D
possess
remarkable
compositional
versatility,
diversity,
controllable
surface
chemistry.
Here,
we
critically
review
current
knowledge
concerning
growth,
structure,
graphene
derivatives,
MOFs,
graphene@MOF
composites
as
well
associated
structure-property-performance
relationships.
Synthetic
strategies
preparing
tuning
also
comprehensively
reviewed
together
applications
gas
storage/separation,
catalysis
(organo-,
electro-,
photocatalysis),
electrochemical
storage
conversion.
hybrids
practical
addressed,
revealing
areas
future
investigation.
We
hope
that
will
inspire
further
exploration
new
energy,
electronic,
biomedical,
photocatalysis
studies
on
previously
unreported
known
reveal
potential
"diamonds
rough".
Chemical Society Reviews,
Год журнала:
2023,
Номер
52(23), С. 8319 - 8373
Опубликована: Янв. 1, 2023
In
this
review,
we
provide
a
comprehensive
summary
of
recent
advances
in
the
synthesis
strategies,
design
principles,
and
characterization
technologies
high
entropy
alloys,
their
applications
various
electrocatalytic
conversion
reactions.
