Industrial & Engineering Chemistry Research,
Journal Year:
2023,
Volume and Issue:
62(37), P. 15084 - 15097
Published: Sept. 10, 2023
This
study
focuses
on
the
development
and
application
of
an
electrochemical
flow
reactor
(EFR)
based
a
gas
diffusion
electrode
(GDE)
for
in
situ
hydrogen
peroxide
production
via
oxygen
reduction
reaction.
Existing
literature
lacks
comprehensive
investigations
into
GDE-based
EFR
hydrodynamics
their
correlation
with
effects.
To
help
fill
this
gap
literature,
response
surface
methodology
(RSM)
was
employed
present
order
to
analyze
hydrodynamic
behavior
EFR.
The
used
rate
interelectrode
as
RSM
variables
analysis
behavior.
Residence
time
distribution
(RTD)
assess
hydraulic
effects,
results
were
compared
H2O2
kinetics,
where
relevant
insights
obtained
relative
effects
system.
findings
point
importance
residence
its
impact
production.
Through
analysis,
conditions
(energy
consumption,
applied
current,
efficiency)
evaluated
using
such
current
density,
O2
rate,
conductivity.
resulting
regression
equation
accurately
predicted
cost,
which
found
align
well
experimental
results.
single-pass
system
common
recirculating
EFRs,
former
exhibited
32.4%
increase
electrogeneration
efficiency
latter.
In
summary,
provides
valuable
through
RSM-based
modulation
operating
conditions.
scaling
technology
improvement
efficiency.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(25)
Published: March 8, 2024
Abstract
Non‐noble
transition
metal
(TM)‐based
compounds
have
recently
become
a
focal
point
of
extensive
research
interest
as
electrocatalysts
for
the
two
electron
oxygen
reduction
(2e
−
ORR)
process.
To
efficiently
drive
this
reaction,
these
TM‐based
must
bear
unique
physiochemical
properties,
which
are
strongly
dependent
on
their
phase
structures.
Consequently,
adopting
engineering
strategies
toward
structure
has
emerged
cutting‐edge
scientific
pursuit,
crucial
achieving
high
activity,
selectivity,
and
stability
in
electrocatalytic
This
comprehensive
review
addresses
intricate
field
applied
to
non‐noble
2e
ORR.
First,
connotation
fundamental
concepts
related
kinetics
thermodynamics
succinctly
elucidated.
Subsequently,
focus
shifts
detailed
discussion
various
approaches,
including
elemental
doping,
defect
creation,
heterostructure
construction,
coordination
tuning,
crystalline
design,
polymorphic
transformation
boost
or
revive
ORR
performance
(selectivity,
stability)
catalysts,
accompanied
by
an
insightful
exploration
phase‐performance
correlation.
Finally,
proposes
fresh
perspectives
current
challenges
opportunities
burgeoning
field,
together
with
several
critical
directions
future
development
electrocatalysts.
