Catalysts,
Journal Year:
2022,
Volume and Issue:
12(12), P. 1490 - 1490
Published: Nov. 22, 2022
The
Zinc-air
battery
(ZAB)
has
become
a
hot
research
topic
for
nearly
decade
due
to
its
high
energy
densities.
As
an
important
category
of
catalysts
ZAB,
perovskites
have
attracted
extensive
interests
because
their
environmentally
friendly
properties,
cheapness,
and
excellent
electrocatalytic
performances.
This
review
article
discusses
the
mechanistic
analyses
regarding
progress
ZAB.
In
addition,
electrode
manipulation
methods
device
are
also
emphasized.
Finally,
perspectives
given
on
limitations
current
perovskite
ZABs.
We
hope
that
this
will
provide
new
clues
promoting
as
many
energy-storage
conversion
applications
in
future.
ACS Catalysis,
Journal Year:
2023,
Volume and Issue:
13(9), P. 6169 - 6184
Published: April 20, 2023
Metallic
(Cu/ZnO/Al2O3)
and
metal
oxide
(Fe2O3,
Co3O4,
NiO)
catalysts
are
prepared
by
a
facile
alcohol
solvent
assisted
method
without
additional
aging
washing
steps.
In
contrast
to
the
conventional
solid-state
using
an
oxalic
acid/M2+
(M
=
cation)
molar
ratio
as
high
4/1,
this
is
easily
operated
at
room
temperature,
atmospheric
pressure,
of
only
1.06/1,
which
prevents
release
lots
flammable
gases
from
decomposition
excessive
acid.
The
effect
types
on
physicochemical
properties
Cu/ZnO/Al2O3
catalytic
performance
for
low-temperature
methanol
synthesis
systemically
studied.
Using
1-propanol
solvent,
catalyst
realizes
ultrahigh
yield
1782.5
g/kgcat·h–1
220
°C
5.0
MPa,
much
higher
than
most
reported
Cu-based
high-temperature
synthesis.
Besides,
displayed
activity
compared
other
synthesized
methods
such
co-precipitation,
impregnation,
sol–gel,
solid-state,
urea
hydrolysis.
Such
good
was
due
Cu0
surface
area,
smaller
Cu
crystallite
size,
greater
basicity,
stronger
H2
adsorption
ability.
This
work
provides
not
hopeful
strategy
large-scale
fabrication
metallic
but
also
self-catalysis
reaction
pathway
achieve
CO
CO2
hydrogenation.
Journal of Resource Recovery,
Journal Year:
2023,
Volume and Issue:
1(1), P. 0 - 0
Published: Jan. 1, 2023
Fuel
cells
are
perceived
as
promising
candidates
for
bridging
the
gap
between
future
clean
energy
path
and
current
'dirty
energy'
path.
Amongst
a
miscellany
of
fuel
cell
types,
PEMFCs
utilized
in
several
applications
by
virtue
their
greater
density
ecofriendly
nature
(if
hydrogen
is
fuel).
Certain
types
such
can
be
employed
to
not
only
generate
power,
but
also
electrolyzers
harvest
oxygen
space
applications.
The
recovered
used
meet
requirements
spacecrafts
while
electricity.
Other
(e.g.,
microbial
(MFC))
simultaneously
works
treat
wastewater
produce
However,
there
challenges
that
hinder
from
reaching
full
potential.
Large
scale
commercialization
still
requires
unraveling
technical
issues
dent
reliability,
durability,
robustness.
Hence,
major
resource
recovery
remain
exist,
high
cost,
shortage
suitable
noble
catalysts,
reduced
lifespan.
hurdle
problems
should
overcome
first
gain
public
trust;
thereby,
catalyzing
expansive
commercial
roll
out
more
intensive
research
towards
suitably
promoted.
Energies,
Journal Year:
2022,
Volume and Issue:
15(10), P. 3787 - 3787
Published: May 21, 2022
Passive
small
direct
alcohol
fuel
cells
(PS-DAFCs)
are
compact,
standalone
devices
capable
of
electrochemically
converting
the
chemical
energy
in
fuel/alcohol
into
electricity,
with
low
pollutant
emissions
and
high
density.
Thus,
PS-DAFCs
extremely
attractive
as
sustainable/green
off-grid
low-power
sources
(milliwatts
to
watts),
considered
alternatives
batteries
for
small/portable
electric
electronic
devices.
benefit
from
long
life
operation
cost,
assuring
an
efficient
stable
supply
inherent
non-polluting
electricity.
This
review
aims
assess
innovations
on
PS-DAFC
technology,
well
discuss
challenges
R&D
needs
covered
practical
examples
reported
scientific
literature,
since
2018.
Hence,
this
compilation
intends
be
a
guidance
tool
researchers,
order
help
overcome
barriers
broad
market
introduction
consequently
become
prime
renewable
converters
autonomous
micropower
generators.
Only
by
translating
research
discoveries
scale-up
commercialization
process
technology
can
best
balance
between
economic
technical
issues
such
efficiency,
reliability,
durability
achieved.
In
turn,
will
certainly
play
crucial
role
determining
how
meet
pressing
sustainable
needs.
Molecules,
Journal Year:
2023,
Volume and Issue:
28(12), P. 4613 - 4613
Published: June 7, 2023
Today,
finding
low-cost
electro-catalysts
for
methanol
and
ethanol
oxidation
with
high
performance
stability
is
one
of
the
new
research
topics.
A
nanocatalyst
based
on
metal
oxides
in
form
MnMoO4
was
synthesized
by
a
hydrothermal
method
(MOR)
(EOR)
reactions.
Adding
reduced
graphene
oxide
(rGO)
to
catalyst
structure
improved
electrocatalytic
activity
processes.
The
crystal
morphology
MnMoO4-rGO
nanocatalysts
were
investigated
physical
analyses
such
as
scanning
electron
microscopy
X-ray
diffraction.
Their
abilities
MOR
EOR
processes
an
alkaline
medium
evaluated
performing
electrochemical
tests
cyclic
voltammetry,
chronoamperometry,
impedance
spectroscopy.
showed
current
densities
60.59
25.39
mA/cm2
peak
potentials
0.62
0.67
V
(at
scan
rate
40
mV/s),
respectively.
Moreover,
stabilities
91.7%
88.6%
obtained
from
chronoamperometry
analysis
within
6
h.
All
these
features
make
promising
alcohols.
