High pressure adsorption is of significant interest for a range
of applications, including the storage of gases such as
hydrogen and methane and the separation and purification of
various gas and vapor species. In each case, it is important to
be able to accurately characterize the adsorption behavior
of different materials under practical conditions; however,
measurements at elevated pressures, in particular, can be
challenging [1]. Furthermore, the compatibility of components
for use with corrosive species, which are of interest for
environmental applications, for example, is a serious practical
issue.
In this application note, we present data measured under a
range of challenging experimental conditions using a Hiden
Isochema XEMIS microbalance. For this purpose, we selected
a metal-organic framework (MOF), a shale and a zeolite. Of
particular note is, firstly, the practical requirement to be able
to characterize small MOF samples for research purposes
and, secondly, the low gas uptakes shown by shales,
which are highly heterogeneous natural materials. Shales
are of great practical interest due to the shale gas boom but
their characterization requires high pressures and elevated
temperatures to mimic geologically-relevant conditions .
