Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 18, 2025
Abstract
The
design
of
bifunctional
and
high‐performance
electrocatalysts
that
can
be
used
as
both
cathodes
anodes
for
the
two‐electron
oxygen
reduction
reaction
(2e
−
ORR)
biomass
valorization
is
attracting
increasing
attention.
Herein,
a
conserved
ligand
replacement
strategy
developed
synthesis
highly
ordered
conductive
metal‐organic
frameworks
(Ni‐HITP,
HITP
=
2,
3,
6,
7,
10,
11‐hexaiminotriphenylene)
with
chemically
confined
phosphotungstic
acid
(PW
12
)
nanoclusters
in
nanopores.
newly
formed
Ni−O−W
bonds
resultant
Ni‐HITP/PW
modulate
electronic
structures
Ni
W
sites,
which
are
favorable
cathodic
2e
ORR
to
H
2
O
production
anodic
5‐hydroxymethylfurfural
oxidation
(HMFOR)
5‐furandicarboxylic
(FDCA),
respectively.
In
combination
deliberately
retained
pores,
dual‐functional
composites
enable
rate
9.51
mol
g
cat
−1
h
an
FDCA
yield
96.8%
at
current
density
100
mA
cm
−2
/cell
voltage
1.38
V
integrated
ORR/HMFOR
system,
significantly
improved
than
traditional
ORR/oxygen
evolution
system.
This
work
has
provided
new
insights
into
rational
advanced
electrocatalytic
systems
green
valuable
chemicals.
ChemSusChem,
Journal Year:
2024,
Volume and Issue:
18(3)
Published: Sept. 16, 2024
Abstract
2,5‐Furandicarboxylic
acid
(FDCA)
is
a
class
of
valuable
biomass‐based
platform
compounds.
The
creation
FDCA
involves
the
catalytic
oxidation
5‐hydroxymethylfurfural
(HMF).
As
novel
method,
electrocatalysis
has
been
utilized
in
reaction
(HMFOR).
Common
noble
metal
catalysts
show
activity,
which
limited
by
price
and
conditions.
Non‐noble
catalyst
known
for
its
environmental
friendliness,
affordability
high
efficiency.
development
energy
efficient
non‐noble
plays
crucial
role
enhancing
HMFOR
process.
It
can
greatly
upgrade
demand
industrial
production,
important
research
significance
electrocatalytic
HMF.
In
this
paper,
mechanism
HMF
undergoes
to
produce
are
elaborately
summarized.
There
two
pathways
mechanisms
discussed
deeply.
addition,
speculation
on
response
electrode
potential
presented
paper.
main
electrocatalysts
currently
used
classified
summarized
targeting
element
species.
Finally,
paper
focus
mechanistic
effects
reaction,
provide
present
prospects
challenges
Advanced Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 4, 2024
Abstract
The
electrocatalytic
oxidation
of
5‐hydroxymethylfurfural
(HMF)
provides
a
feasible
approach
for
the
efficient
utilization
biomass.
Defect
regulation
is
an
effective
strategy
in
field
biomass
upgrading
to
enhance
adsorption
capacity
reactants
and
thus
increase
activity.
However,
how
select
appropriate
strategies
regulate
over‐enrichment
induced
by
excessive
oxygen
vacancy
still
huge
challenge.
In
this
work,
defect‐filling
design
construct
element‐filled
site
layered
double
hydroxide
(S─Ov─LDH)
adopted,
which
achieves
significant
reduction
electrolysis
potential
platform
molecule
HMF
reaction
current
density.
Physical
characterizations,
electrochemical
measurements,
theoretical
calculations
prove
that
formation
metal─S
bond
second
shell
effectively
regulates
electronic
structure
material,
weakening
over‐strong
OH
−
vacancy,
promoting
high‐valence
Co
3+
during
reaction,
forming
new
sites.
This
work
discusses
catalytic
enhancement
mechanism
defect
filling
detail,
fills
gap
upgrading,
favorable
guidance
further
development
strategies.
