ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(7), P. 10302 - 10314
Published: Feb. 9, 2023
Liquid
superlubricity
has
attracted
much
attention,
due
to
its
ability
significantly
reduce
friction
on
the
macroscale.
However,
severe
wear
caused
by
long
running-in
period
is
still
one
of
bottlenecks
restricting
practical
application
liquid
superlubricating
materials.
In
this
work,
obtained
polyethylene
glycol-phytic
acid
(PEG-PA)
composite
lubricants
showed
outstanding
properties
(μ
≈
0.006)
for
Si
ACS Applied Materials & Interfaces,
Journal Year:
2021,
Volume and Issue:
13(7), P. 8794 - 8807
Published: Feb. 12, 2021
In
this
work,
we
carefully
designed
and
synthesized
a
series
of
novel
polyelectrolyte-functionalized
carbon
dots
(CDs-PEI-X)
by
facile
reversible
phase
transfer
method
based
on
the
protonation
reaction
anion
exchange
process
executed
surface
polyethylenimine-grafted
CDs
(CDs-PEI),
where
X
denotes
anionic
moieties
polyelectrolyte
shells
including
hexafluorophosphate
(PF6-),
bis(trifluoromethane)sulfonimide
(NTf2-),
oleate
(OL-),
bis(salicylato)borate
(BScB-),
respectively.
Attributed
to
favorable
compatibility
these
anions
polyethylene
glycol
(PEG)
molecules,
hydrophobic
CDs-PEI-X
displayed
excellent
dispersibility
long-term
stability
in
PEG200
base
oil.
Subsequently,
tribological
behaviors
as
lubricant
additives
were
systematically
investigated.
It
was
proved
that
played
crucial
role
regulating
their
behaviors.
Particularly,
CDs-PEI-OL
confirmed
an
optimal
additive,
exhibiting
best
lubricity,
outstanding
load-bearing
capacity,
long
service
life,
remarkable
operational
under
boundary
lubrication
regime.
Based
evaluations
worn
analyses,
mechanism
mainly
attributed
formation
organic-inorganic
hybrid
adsorption
film,
protective
tribofilm,
its
nanolubrication
functions
scrollable
"ball-bearing",
i.e.,
synergistic
effects
cores.
This
study
provides
feasible
versatile
strategy
rapidly
effectively
tailor
chemistry
discloses
essential
contribution
cores
groups
process,
which
facilitates
development
advanced
CDs-based
nanolubricant
additives.
Lubricants,
Journal Year:
2022,
Volume and Issue:
10(10), P. 273 - 273
Published: Oct. 21, 2022
Reducing
friction
and
wear
by
improving
the
tribological
properties
of
liquid
lubricants
with
additives
is
one
most
important
research
goals
in
tribology.
Graphene
a
typical
two-dimensional
(2D)
nanomaterial,
which
has
outstanding
performance
when
used
as
an
additive
lubricants.
In
past
decade,
various
graphene-based
nanomaterials
have
been
fabricated
different
methods
investigated
lubricant
additives.
This
review
aims
at
comprehensively
overviewing
state-of-the-art
Firstly,
synthesis
material
structure
are
reviewed.
Subsequently,
possible
mechanism
on
friction-reduction
anti-wear
was
briefly
discussed.
Secondly,
were
reviewed
Additionally,
applications
lubricating
scenarios
also
Finally,
challenges
future
prospects
proposed.
ACS Nano,
Journal Year:
2022,
Volume and Issue:
16(3), P. 4734 - 4745
Published: Feb. 28, 2022
Biomineralized
tough
hydrogels
(BTHs)
have
advanced
applications
in
the
fields
of
soft
bioelectronics
and
biomimetic
tissue
engineering.
But
development
rapid
general
photomineralization
strategies
for
one-step
fabrication
customizable
BTHs
is
still
a
challenging
task.
Here
we
report
straightforward,
low-cost
visible-light-mediated
nano-biomineralization
(VLMNB)
strategy
via
rational
design
phosphate
source
efficient
ruthenium
photochemistry.
Multinetwork
are
simultaneously
constructed
under
same
condition.
Therefore,
rapidly
prepared
short
time
as
low
∼60
s
visible
light
irradiation.
The
situ
formation
calcium
particles
can
improve
BTHs'
mechanical
biological
properties
reduce
friction
coefficient
with
bones.
Furthermore,
fast
biomineralization
solidification
processes
these
benefit
their
injectable
highly
flexible
design,
showing
promoting
skin
repair
bone
regeneration.
Journal of Materials Chemistry A,
Journal Year:
2022,
Volume and Issue:
10(30), P. 16224 - 16235
Published: Jan. 1, 2022
This
work
proposed
a
strategy
to
directly
modify
commercial
sponges
by
synergistically
reducing
the
viscosity
of
crude
oil
using
solar-assisted
chemical
emulsifiers
achieve
rapid
adsorption
and
efficient
recovery
oil.
