Cell Reports Physical Science,
Год журнала:
2023,
Номер
4(6), С. 101433 - 101433
Опубликована: Июнь 1, 2023
Ammonia
production
is
a
critical
industrial
process,
and
mild
routes
to
recycle
nitrates
in
wastewater
could
be
promising
route
ammonia
synthesis.
In
this
study,
demonstrated
microbial
electrosynthesis
system
with
nitrate
an
electrode
as
electron
acceptors
donors,
respectively.
Based
on
the
bidirectional
extracellular
transfer
capability
of
Shewanella
oneidensis
MR-1,
our
electrosynthetic
achieves
maximum
rate
24.3
μg
h−1·mg
protein−1
82.5%
selectivity
33.1%
cathodic
efficiency
functions
for
several
cycles
over
30
days.
Electrochemical
analysis
suggests
that
cytochromes
c,
flavins,
flavin/c-cytochrome
combination
play
pivotal
role.
Charge
resistance
weakens
course
weeks,
resulting
easier
transfer.
Parallel
reaction
monitoring
proteomics
suggest
reversing
typical
"Mtr
pathway"
plays
role,
dissimilatory
pathway
used.
This
work
proposes
progressive
carry
out
synthesis
under
conditions.
Chemical Reviews,
Год журнала:
2022,
Номер
123(5), С. 2349 - 2419
Опубликована: Дек. 13, 2022
Recent
advances
in
synthetic
biology
and
materials
science
have
given
rise
to
a
new
form
of
materials,
namely
engineered
living
(ELMs),
which
are
composed
matter
or
cell
communities
embedded
self-regenerating
matrices
their
own
artificial
scaffolds.
Like
natural
such
as
bone,
wood,
skin,
ELMs,
possess
the
functional
capabilities
organisms,
can
grow,
self-organize,
self-repair
when
needed.
They
also
spontaneously
perform
programmed
biological
functions
upon
sensing
external
cues.
Currently,
ELMs
show
promise
for
green
energy
production,
bioremediation,
disease
treatment,
fabricating
advanced
smart
materials.
This
review
first
introduces
dynamic
features
systems
potential
developing
novel
We
then
summarize
recent
research
progress
on
emerging
design
strategies
from
both
perspectives.
Finally,
we
discuss
positive
impacts
promoting
sustainability
key
future
directions.
Nature Communications,
Год журнала:
2022,
Номер
13(1)
Опубликована: Ноя. 3, 2022
Integration
of
methanogens
with
semiconductors
is
an
effective
approach
to
sustainable
solar-driven
methanogenesis.
However,
the
H2
production
rate
by
largely
exceeds
that
methanogen
metabolism,
resulting
in
abundant
as
side
product.
Here,
we
report
binary
metallic
active
sites
(namely,
NiCu
alloys)
are
incorporated
into
interface
between
CdS
and
Methanosarcina
barkeri.
The
self-assembled
barkeri-NiCu@CdS
exhibits
nearly
100%
CH4
selectivity
a
quantum
yield
12.41
±
0.16%
under
light
illumination,
which
not
only
reported
biotic-abiotic
hybrid
systems
but
also
superior
most
photocatalytic
systems.
Further
investigation
reveal
Ni-Cu-Cu
hollow
alloys
can
directly
supply
hydrogen
atoms
electrons
through
photocatalysis
barkeri
for
methanogenesis
via
both
extracellular
intracellular
cycles,
effectively
turning
down
production.
This
work
provides
important
insights
interface,
offers
avenue
engineering
process.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(17)
Опубликована: Фев. 19, 2024
Photocatalytic
hydrogen
production
based
on
noble
metal-free
systems
is
a
promising
technology
for
the
conversion
of
solar
energy
into
green
hydrogen,
it
pivotal
and
challenging
to
tailor-make
photocatalysts
achieving
high
photocatalytic
efficiency.
Herein,
we
reported
hollow
double-shell
dyad
through
uniformly
coating
covalent
organic
frameworks
(COFs)
surface
Co
Chemical Reviews,
Год журнала:
2024,
Номер
124(15), С. 9081 - 9112
Опубликована: Июнь 20, 2024
Nanomaterial-microorganism
hybrid
systems
(NMHSs),
integrating
semiconductor
nanomaterials
with
microorganisms,
present
a
promising
platform
for
broadband
solar
energy
harvesting,
high-efficiency
carbon
reduction,
and
sustainable
chemical
production.
While
studies
underscore
its
potential
in
diverse
solar-to-chemical
conversions,
prevailing
NMHSs
grapple
suboptimal
conversion
efficiency.
Such
limitations
stem
predominantly
from
an
insufficient
systematic
exploration
of
the
mechanisms
dictating
flow.
This
review
provides
overview
notable
advancements
this
nascent
field,
particular
focus
on
discussion
three
pivotal
steps
flow:
capture,
cross-membrane
transport,
into
chemicals.
key
challenges
faced
each
stage
are
independently
identified
discussed,
viable
solutions
correspondingly
postulated.
In
view
interplay
affecting
overall
efficiency
conversion,
subsequent
discussions
thus
take
integrative
viewpoint
to
comprehend,
analyze
improve
flow
current
different
configurations,
highlighting
contemporary
techniques
that
can
be
employed
investigate
various
aspects
within
NMHSs.
Finally,
concluding
section
summarizes
opportunities
future
research,
providing
roadmap
continued
development
optimization
Journal of the American Chemical Society,
Год журнала:
2022,
Номер
144(36), С. 16433 - 16446
Опубликована: Сен. 1, 2022
Formic
acid
is
considered
as
one
of
the
most
promising
liquid
organic
hydrogen
carriers.
Its
catalytic
dehydrogenation
process
generally
suffers
from
low
activity,
reaction
selectivity,
stability
catalysts,
and/or
use
noble-metal-based
catalysts.
Herein
we
report
a
highly
selective,
efficient,
and
noble-metal-free
photocatalyst
for
formic
acid.
This
catalyst,
UiO-66(COOH)2-Cu,
built
by
postmetalation
carboxylic-functionalized
Zr-MOF
with
copper.
The
visible-light-driven
photocatalytic
through
release
carbon
dioxide
has
been
monitored
in
real-time
via
operando
Fourier
transform
infrared
spectroscopy,
which
revealed
almost
100%
selectivity
high
(over
3
days)
conversion
yield
exceeding
60%
(around
5
mmol·gcat–1·h–1)
under
ambient
conditions.
These
performance
indicators
make
UiO-66(COOH)2-Cu
among
top
photocatalysts
dehydrogenation.
Interestingly,
as-prepared
hetero-nanostructure
was
found
to
be
moderately
active
solar
irradiation
during
an
induction
phase,
whereupon
it
undergoes
in-situ
restructuring
intraframework
cross-linking
formation
anhydride
analogue
structure
UiO-66(COO)2-Cu
nanoclustering
stable
copper
sites,
evidenced
studies
coupled
steady-state
isotopic
transient
kinetic
experiments,
transmission
electron
microscopy
X-ray
photoelectron
spectroscopy
analyses,
Density
Functional
Theory
calculations.
Beyond
revealing
outstanding
UiO-66(COO)2-Cu,
this
work
delivers
in-depth
understanding
mechanism,
involves
evolutive
behavior
postmetalated
well
MOF
framework
over
reaction.
key
findings
pave
way
toward
engineering
new
efficient
catalysts
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Дек. 4, 2023
Abstract
Microbial
rhodopsin,
a
significant
contributor
to
sustaining
life
through
light
harvesting,
holds
untapped
potential
for
carbon
fixation.
Here,
we
construct
an
artificial
photosynthesis
system
which
combines
the
proton-pumping
ability
of
rhodopsin
with
extracellular
electron
uptake
mechanism,
establishing
pathway
drive
photoelectrosynthetic
CO
2
fixation
by
Ralstonia
eutropha
(also
known
as
Cupriavidus
necator
)
H16,
facultatively
chemolithoautotrophic
soil
bacterium.
R.
is
engineered
heterologously
express
transfer
Shewanella
oneidensis
MR-1
and
Gloeobacter
(GR).
Employing
GR
outer-membrane
conduit
MtrCAB
from
S.
,
electrons
GR-driven
proton
motive
force
are
integrated
into
’s
native
transport
chain
(ETC).
Inspired
natural
photosynthesis,
photoelectrochemical
splits
water
supply
via
Mtr
route.
The
light-activated
pump
-
GR,
supported
canthaxanthin
antenna,
powers
ATP
synthesis
reverses
ETC
regenerate
NADH/NADPH,
facilitating
biomass
.
Overexpression
carbonic
anhydrase
further
enhances
This
has
advance
development
efficient
redefining
our
understanding
ecological
role
microbial
rhodopsins
in
nature.
