Mesopores and Small Macropores
Gas adsorption for the pore size range 2 - ~300 nm*
Specific (BET) Surface Area (numerical value and graphical plot)
Pore Volume (numerical value and graphical plot)
Pore Area (numerical value and graphical plot)
Average Pore Size (numerical values)
Pore Size Distribution (numerical value and graphical plot)
Assessment of Pore Geometry
Micropore Volume
Choice of Adsorbates
* Depending on nature of sample
Tel: 01763 262333
Porosimetry Analysis
Porosimetry
covers
a
range
of
analytical
techniques
used
for
understanding
and
characterising
the
porous
nature
of
materials.
Porosity
often
has
profound affects on the behaviour of materials and influences many aspects of their selection, fabrication, application, performance and life-cycle.
Porosity
is
a
broad
term
which
encompasses
physical
characteristics
such
as
pore
volume,
pore
surface
area,
pore
size
distribution,
specific
surface
area,
absolute
porosity
and
pore
geometry.
It
also
has
direct
relationships
with
the
various
measures
of
sample
density,
gas
and
fluid
permeability
and
chemical
activity.
All
of
these
aspects
of
porosity
can
be
characterised
at
MCA
Services
using
a
range
of
state-of-the-art
analytical
instruments.
Our
expertise
in
the
application
of
analyses
and
interpretation
means
that
the
most
pertinent
data
is
presented
and
related
directly to specific materials and applications.
Porosity
is
commonly
considered
as
being
present
within
a
solid
material
but
it
is
also
present
in
the
void
spaces
of
a
powder
material.
Such
inter-
particulate
porosity
is
determined
by
the
particle
size
and
shape
of
the
powder
grains,
essentially
reflecting
the
packing
properties
of
powder
particles.
Understanding
inter-particulate
porosity
becomes
very
significant
when
a
powder
is
used
in
the
fabrication
of
a
solid
article.
Combined
with the process conditions, such as compression, binder composition and firing temperature it determines the porosity within the finished article.
Pore
sizes
can
be
divided
into
three
ranges:
Micropores
(<
2nm),
Mesopores
(2
–
50
nm)
and
Macropores
(>
50nm),
the
sizes
refer
to
the
diameter
of
a
cylindrical
pore
or
the
width
of
a
slit-shaped
pore
according
to
IUPAC
definitions.
Micro-pores
are
sometimes
further
divided
to
include
super-micropores,
or
ultra-micropores
which
are
smaller
than
1
nm.
Pore
geometry, which includes types and shapes of pores should also be considered.
There
is
no
single
technique
that
can
be
used
to
determine
porous
characteristics
throughout
the
ranges
of
pore
sizes.
Therefore,
it
is
usually
necessary
to
select
the
most
appropriate
technique
or
combination
of
techniques
for
a
given
sample
and
application.
At
MCA
Services
we
have
decades
of
experience
in
this
and
are
always
happy
to
provide
our
thoughts
on
this
selection.
Mesopores and Macropores
Mercury porosimetry
for the pore size range 3.5 nm – 650 µm*
Pore Volume (numerical value and graphical plot)
Pore Area (numerical value and graphical plot)
Average Pore Size (numerical values)
Pore Size Distribution (numerical value and graphical plot)
Bulk and Skeletal Density
Absolute Porosity (% volume)
Permeability
Pore Tortuosity
* Depending on nature of sample
Micropores
Gas adsorption for the pore size range 0.3 – 2 nm
Pore Volume (numerical value and graphical plot)
Pore Area (numerical value and graphical plot)
Average Pore Size (numerical values)
Nitrogen Adsorption (pores 0.45 – 2 nm)
Nitrogen Adsorption Full Isotherm (pores 0.45 - ~300nm*)
Carbon Dioxide Adsorption (pores 0.3 – 0.45 nm)
Combined CO
2
and N
2
Isotherms (pores 0.3 - ~300nm*)
Choice of Adsorbates (N
2
, CO
2
, Ar, H
2
, O
2
)
More
information
can
be
found
on
our
specific
Analytical
Options
pages
and
at
MCA
Services
we
are
always
happy
to
discuss
particular
requirements, sample types and applications to determine the more appropriate techniques for the characterisation of your samples.
MCA Services
01763 262333
More
information
can
be
found
on
our
specific
Analytical
Options
pages
and
at
MCA
Services
we
are
always
happy
to
discuss
particular
requirements,
sample
types
and
applications
to
determine
the
more
appropriate
techniques
for
the
characterisation of your samples.
There
is
no
single
technique
that
can
be
used
to
determine
porous
characteristics
throughout
the
ranges
of
pore
sizes.
Therefore,
it
is
usually
necessary
to
select
the
most
appropriate
technique
or
combination
of
techniques
for
a
given
sample
and
application.
At
MCA
Services
we
have
decades
of
experience
in
this
and
are
always
happy
to
provide
our
thoughts
on
this
selection.
Pore
sizes
can
be
divided
into
three
ranges:
Micropores
(<
2nm),
Mesopores
(2
–
50
nm)
and
Macropores
(>
50nm),
the
sizes
refer
to
the
diameter
of
a
cylindrical
pore
or
the
width
of
a
slit-shaped
pore
according
to
IUPAC
definitions.
Micro-pores
are
sometimes
further
divided
to
include
super-micropores,
or
ultra-micropores
which
are
smaller
than
1
nm.
Pore
geometry,
which
includes
types
and
shapes
of
pores should also be considered.
Porosimetry Analysis
Porosimetry
covers
a
range
of
analytical
techniques
used
for
understanding
and
characterising
the
porous
nature
of
materials.
Porosity
often
has
profound
affects
on
the
behaviour
of
materials
and
influences
many
aspects
of
their
selection,
fabrication,
application, performance and life-cycle.
Porosity
is
a
broad
term
which
encompasses
physical
characteristics
such
as
pore
volume,
pore
surface
area,
pore
size
distribution,
specific
surface
area,
absolute
porosity
and
pore
geometry.
It
also
has
direct
relationships
with
the
various
measures
of
sample
density,
gas
and
fluid
permeability
and
chemical
activity.
All
of
these
aspects
of
porosity
can
be
characterised
at
MCA
Services
using
a
range
of
state-of-the-art
analytical
instruments.
Our
expertise
in
the
application
of
analyses
and
interpretation
means
that
the
most
pertinent
data
is
presented
and
related
directly
to
specific
materials
and
applications.
Porosity
is
commonly
considered
as
being
present
within
a
solid
material
but
it
is
also
present
in
the
void
spaces
of
a
powder
material.
Such
inter-particulate
porosity
is
determined
by
the
particle
size
and
shape
of
the
powder
grains,
essentially
reflecting
the
packing
properties
of
powder
particles.
Understanding
inter-particulate
porosity
becomes
very
significant
when
a
powder
is
used
in
the
fabrication
of
a
solid
article.
Combined
with
the
process
conditions,
such
as
compression,
binder
composition
and
firing
temperature
it
determines the porosity within the finished article.
Mesopores and Macropores
Mercury porosimetry for the pore size range 3.5 nm – 650 µm*
Pore Volume (numerical value and graphical plot)
Pore Area (numerical value and graphical plot)
Average Pore Size (numerical values)
Pore Size Distribution (numerical value and graphical plot)
Bulk and Skeletal Density
Absolute Porosity (% volume)
Permeability
Pore Tortuosity
* Depending on nature of sample
Mesopores and Small Macropores
Gas adsorption for the pore size range 2 - ~300 nm*
Specific (BET) Surface Area
Pore Volume
Pore Area
Average Pore Size
Pore Size Distribution
Assessment of Pore Geometry
Micropore Volume
Choice of Adsorbates
* Depending on nature of sample
Micropores
Gas adsorption for the pore size range 0.3 – 2 nm
Pore Volume (numerical value and graphical plot)
Pore Area (numerical value and graphical plot)
Average Pore Size (numerical values)
Nitrogen Adsorption (pores 0.45 – 2 nm)
Nitrogen Adsorption Full Isotherm (pores 0.45 - ~300nm*)
Carbon Dioxide Adsorption (pores 0.3 – 0.45 nm)
Combined CO2 and N2 Isotherms (pores 0.3 - ~300nm*)
Choice of Adsorbates (N
2
, CO
2
, Ar, H
2
, O
2
)
