Catalysts,
Journal Year:
2024,
Volume and Issue:
15(1), P. 17 - 17
Published: Dec. 28, 2024
The
catalytic
activity
and
selectivity
of
Co-based
catalysts
supported
on
home-made
nanoporous
carbon
was
studied
as
a
function
the
type
alkali
promoter
(Ca
Mg).
were
characterized
by
N2
adsorption/desorption
isotherms,
temperature-programmed
reduction,
CO
chemisorption,
X-ray
diffraction
patterns.
compared
against
carbon-supported
alkali-promoted
Ni-based
Re-containing
catalysts.
catalyst
clearly
enhanced
in
presence
Ca
Mg,
it
higher
than
comparable
to
that
obtained
using
an
ReC
catalyst.
initial
Mg-promoted
increased
factor
up
2.5
times
non-promoted
Moreover,
this
showed
turnover
frequency
5
equivalent
Re-based
Significant
changes
not
observed
products
after
incorporation
alkali,
with
cyclohexane
being
main
product.
However,
demonstrated
led
faster
production
from
demethoxylation
phenol
dehydrogenation
cyclohexanol.
present
results
suggest
are
economical
alternative
for
conversion
representative
target
molecules
bio-oil
feed.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Abstract
Electrochemical
5‐hydroxymethylfurfural
oxidation
reaction
(HMFOR)
offers
a
promising
approach
to
producing
valuable
chemicals
and
facilitating
coupled
H
2
production.
A
significant
challenge
in
the
HMFOR
lies
elucidating
interaction
mechanisms
between
active
sites
(HMF).
However,
unpredictable
reconstruction
of
during
catalytic
process
complicates
understanding
these
mechanisms.
In
this
study,
novel
heterojunction
(CoSe
@NiSe‐CoSe
/NF)
is
synthesized
using
straightforward
hydrothermal
method
combined
with
classical
selenization.
This
demonstrates
exceptional
electrocatalytic
performance
for
direct
HMF
oxidation,
achieving
Faradaic
efficiency
2,5‐furanedicarboxylic
acid
(FDCA)
up
97.9%.
Notably,
it
requires
only
1.29
V
versus
RHE
achieve
current
density
10
mA
cm
−2
HMFOR‐assisted
hydrogen
evolution
(HER).
The
high
activity
primarily
arises
from
interfacial
electron
redistribution.
Specifically,
Co
modulates
band
structure
Ni,
Se
serving
as
intermediary.
modulation
increases
adsorption
energy
reduces
barrier
rate‐determining
step
HMFOR.
research
not
achieves
selective
synthesis
high‐value
but
also
provides
comprehensive
analysis
structure‐performance
relationship
catalyst,
offering
new
pathway
development
efficient
heterogeneous
catalysts.
Sustainable Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
8(10), P. 2153 - 2166
Published: Jan. 1, 2024
Guaiacol,
a
key
building
block
of
lignin,
which
is
the
intricate
glue
that
holds
biomass,
was
transformed
into
cyclohexanol,
an
industrial
chemical
used
as
solvent,
nylon
precursor,
and
plasticizer
over
Co/CoO
catalyst.
