Molten
metal
catalysts
for
methane
pyrolysis
and
dry
reforming
are
becoming
recognized
their
potential
in
decarbonization
efforts.
Their
use
bubble
column
reactors
facilitates
continuous
operation
by
allowing
the
produced
carbon
to
float
surface
removal.
While
most
reported
molten
metals
produce
low-value
amorphous
or
graphitic
sheets
containing
some
metals,
our
study
introduces
a
Cu-In
alloy
that
selectively
produces
high-purity
nanofibers.
These
nanofibers
tubular
have
smooth
bamboo-like
segmented
structure
with
diameter
of
approximately
100
nm.
We
identified
droplet-based
pathway
growth
these
fibers
removal
droplets,
observed
consistently
across
reactor,
both
absence
presence
dioxide
reforming.
The
system
is
shown
outperform
other
catalysts,
producing
purity
greater
than
99.9%
after
heat
treatment.
