Surface Phosphorus Grafting of Ti3C2Tx MXene as an Interface Charge “Bridge” for Efficient Electrocatalytic Hydrogen Evolution in All-pH Media
Jian Zhang,
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Xianzhi Yang,
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Chen Chen
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et al.
Chemistry of Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 4, 2024
The
interface
electronic
structure
of
heterogeneous
catalysts
can
be
modulated
by
changing
the
surface
coordination
configuration,
which
is
crucial
to
their
catalytic
activity.
Herein,
a
phosphorus-grafted
Ti3C2Tx
MXene
platform
anchored
with
an
MoS2
nanoflake
heterojunction
electrocatalyst
was
assembled
through
simple
phosphorus-hydrothermal
method.
An
charge
"bridge"
has
been
created
grafting
uniform
P
atoms
coordinated
O
(P-Ti3C2Tx),
resulting
in
charge-transfer
channel
between
P-Ti3C2Tx
and
MoS2.
Based
on
ultrafast
transient
absorption
spectroscopy,
fastest
electron-transfer
kinetics
from
(1.7
ps)
slowest
electron–hole
recombination
speed
(28
were
obtained
over
MoS2@P-Ti3C2Tx
than
those
MoS2@O-Ti3C2Tx
MoS2@OP-Ti3C2Tx.
Benefiting
lower
carrier
transport
activation
energy,
exhibited
stirring
electrocatalytic
activity
toward
hydrogen
evolution
all-pH
media,
delivered
three
low
overpotentials
48.6,
63.2,
70.5
mV
at
10
mA
cm–2
alkaline,
acid,
neutral
respectively.
Grafting
atomic
scale
create
proposes
new
strategy
design
efficient
pH-universal
electrocatalyst.
Language: Английский
Ultrasmall Rh-decorated porous heterostructures stereoassembled from MXene and graphene for efficient methanol electrooxidation
International Journal of Hydrogen Energy,
Journal Year:
2024,
Volume and Issue:
92, P. 535 - 543
Published: Oct. 30, 2024
Language: Английский
Insights into the role of MXenes as multifunctional material for fuel cell technologies: As electrocatalysts and electrolytes
S. Shanmuga Sundara Raj,
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Ambak Kumar,
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Akhila Raman
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et al.
Journal of Power Sources,
Journal Year:
2025,
Volume and Issue:
639, P. 236582 - 236582
Published: March 3, 2025
Language: Английский
Grain Boundary-Enriched Wavy Pd Nanowires Intertwined with MXene Nanosheets toward Formic Acid and Methanol Electrooxidation
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 8, 2025
The
rational
design
and
precise
fabrication
of
nanostructured
noble
metals
with
sophisticated
morphology
meliorative
electronic
structures
are
the
key
in
development
advanced
electrode
materials
for
fuel
cell
technology.
Herein,
we
present
a
robust
controllable
stereoassembly
method
to
construction
1D
grain
boundary-enriched
wavy
Pd
nanowires
intertwined
2D
ultrathin
Ti3C2Tx
MXene
nanosheets
(Pd
NWs/MX).
By
taking
series
unique
architectural
merits
including
interconnected
nanowires,
rich
boundaries,
stable
1D/2D
heterointerface,
direct
interaction
as
well
high
electrical
conductivity,
resultant
NWs/MX
heterojunction
expresses
excellent
electrocatalytic
activities,
strong
antitoxic
ability,
long
lifespan
toward
both
formic
acid
methanol
oxidation
reactions,
all
which
significantly
superior
those
widely
used
particle
catalysts
supported
by
conventional
carbon
matrixes.
Language: Английский