Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(27)
Опубликована: Апрель 21, 2023
Competition
from
hydrogen/oxygen
evolution
reactions
and
low
solubility
of
N2
in
aqueous
systems
limited
the
selectivity
activity
on
nitrogen
fixation
reaction.
Herein,
we
design
an
aerobic-hydrophobic
Janus
structure
by
introducing
fluorinated
modification
porous
carbon
nanofibers
embedded
with
partially
carbonized
iron
heterojunctions
(Fe3
C/Fe@PCNF-F).
The
simulations
prove
that
can
keep
internal
Fe3
C/Fe@PCNF-F
away
water
infiltration
endow
a
molecular-concentrating
effect,
suppressing
competing
overcoming
mass-transfer
limitations
to
build
robust
"quasi-solid-gas"
state
micro-domain
around
catalyst
surface.
In
this
proof-of-concept
system,
exhibits
excellent
electrocatalytic
performance
for
(NH3
yield
rate
up
29.2
μg
h-1
mg-1cat.
Faraday
efficiency
(FE)
27.8
%
reduction
reaction;
NO3-
15.7
FE
3.4
oxidation
reaction).
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(27)
Опубликована: Апрель 21, 2023
Competition
from
hydrogen/oxygen
evolution
reactions
and
low
solubility
of
N2
in
aqueous
systems
limited
the
selectivity
activity
on
nitrogen
fixation
reaction.
Herein,
we
design
an
aerobic-hydrophobic
Janus
structure
by
introducing
fluorinated
modification
porous
carbon
nanofibers
embedded
with
partially
carbonized
iron
heterojunctions
(Fe3
C/Fe@PCNF-F).
The
simulations
prove
that
can
keep
internal
Fe3
C/Fe@PCNF-F
away
water
infiltration
endow
a
molecular-concentrating
effect,
suppressing
competing
overcoming
mass-transfer
limitations
to
build
robust
"quasi-solid-gas"
state
micro-domain
around
catalyst
surface.
In
this
proof-of-concept
system,
exhibits
excellent
electrocatalytic
performance
for
(NH3
yield
rate
up
29.2
μg
h-1
mg-1cat.
Faraday
efficiency
(FE)
27.8
%
reduction
reaction;
NO3-
15.7
FE
3.4
oxidation
reaction).
