Langmuir,
Journal Year:
2023,
Volume and Issue:
39(35), P. 12476 - 12487
Published: Aug. 24, 2023
The
unique
structure
and
ultralow
interlayer
shear
strength
give
molybdenum
disulfide
(MoS2)
materials
a
broad
prospect
for
energy
savings,
economic
benefits,
extended
operating
life
of
lubrication
systems.
Herein,
we
prepared
an
effective
integration
strategy
to
prepare
novel
small-sized
chemically
grafted
MoS2
solve
the
problems
poor
dispersibility
easy
agglomeration
MoS2.
powder
was
stripped
oxidized
generate
active
centers
using
acid
oxidation
high-speed
ultrasonic
crushing
obtain
two
different
types
alkylamine
chemically,
covalently
grafted,
nanosheets
as
lubricant
additives
achieve
friction
reduction
antiwear.
chemical
changes
structural
characteristics
molecules
upon
covalent
interaction
with
were
investigated
in
detail
by
FTIR,
XPS,
TGA,
XRD,
TEM
analyses.
results
showed
that
alkylamine-grafted
oxide
had
good
dispersion
15#
industrial
white
oil,
experiments
confirmed
(MoS2–O-OLA)
exhibited
better
wear
resistance
such
that,
compared
pure
0.02
wt
%
MoS2–O-OLA
could
significantly
reduce
(36.2%)
(22.4%).
field-emission
scanning
electron
microscopy
(FESEM)
EDS
analyses
surface
play
important
role
improving
tribological
properties
generating
slippage
at
steel
ball
contact
interface,
thereby
forming
protection
uniform
oil
film.
Nanomaterials,
Journal Year:
2022,
Volume and Issue:
12(21), P. 3780 - 3780
Published: Oct. 27, 2022
Lubricant
additives
can
effectively
enhance
the
performance
and
environmental
adaptability
of
lubricants
reduce
energy
loss
machine
wear
caused
by
friction.
Nanomaterials,
as
important
additive
materials,
have
an
essential
role
in
research
development
new
lubricants,
whose
lubrication
performances
mechanisms
are
not
only
related
to
their
physical
chemical
properties,
but
also
influenced
geometric
shape.
In
this
paper,
friction
reduction
antiwear
nanomaterials
lubricant
first
reviewed
according
classification
dimensions,
influence
rules
revealed.
Second,
recent
progress
composite
is
introduced,
focusing
on
synergistic
mechanism
improve
further.
Finally,
we
briefly
discuss
challenges
faced
nanoadditives
provide
outlook
future
research.
The
review
expects
ideas
for
selection
expand
application
nanoadditives.
Friction,
Journal Year:
2024,
Volume and Issue:
12(10), P. 2281 - 2297
Published: July 24, 2024
Abstract
High-temperature
lubrication
has
always
been
a
hot
topic
in
the
lubricant
and
grease
industry,
is
also
an
essential
concern
high-end
equipment
sector
to
be
addressed.
Carbon
quantum
dots
(CQDs)
are
emerging
material
widely
applied
field
of
lubrication,
owing
their
exceptional
lubricity
high
load-bearing
capacity.
However,
vulnerability
CQDs
oxidation
air
reduced
stability
dramatically
restrict
high-temperature
application
capability.
In
this
study,
nanocomposite
amphiphilic
polyvinyl
pyrrolidone
(PVP)
homopolymer
with
excellent
lubricating
properties
thermal
stability,
which
hydrogen
bonded
(CQDs@PVP),
was
designed
achieve
low
friction
wear
lubricants
at
temperatures.
The
CQDs@PVP
consistently
dispersed
both
PEG400
water,
exhibit
superior
compared
unmodified
temperatures
(ranging
from
200–150
°C
90.50
°C).
Meanwhile,
dense
carbon
film
on
surface
chemically
reactive
iron
compounds
directly
contribute
enhanced
performance.
These
analytical
results
demonstrate
powerful
candidacy
as
additive
promote
future
applications
industrial
production.
Nanomaterials,
Journal Year:
2023,
Volume and Issue:
13(16), P. 2336 - 2336
Published: Aug. 14, 2023
In
nanotechnology,
the
synthesis
of
carbon
quantum
dots
(CQDs)
by
mixed
doping
with
metals
and
non-metals
has
emerged
as
an
appealing
path
investigation.
This
review
offers
comprehensive
insights
into
synthesis,
properties,
emerging
applications
mixed-doped
CQDs,
underlining
their
potential
for
revolutionary
advancements
in
chemical
sensing,
biosensing,
bioimaging,
and,
thereby,
contributing
to
diagnostics,
therapeutics,
under
standing
complex
biological
processes.
synergistic
combination
enhances
sensitivity
selectivity
towards
specific
analytes.
The
resulting
CQDs
exhibit
remarkable
fluorescence
properties
that
can
be
involved
precise
sensing
applications.
These
metal-modified
show
ability
selective
sensitive
detection
from
Hg
Fe
Mn
ions.
By
influencing
exceptional
they
enable
monitoring
biomolecules,
such
uric
acid,
cholesterol,
many
antibiotics.
Moreover,
when
it
comes
these
doped
unique
behavior
detecting
cell
lines.
Their
emit
light
across
a
wide
spectrum
enables
high-resolution
imaging
minimal
background
noise.
We
uncover
visualizing
different
cancer
lines,
offering
valuable
research
diagnostics.
conclusion,
opens
way
bioimaging.
As
we
investigate
deeper
this
field,
unlock
new
possibilities
understanding
