Triangulation of pore structural characterisation of disordered mesoporous silica using novel hybrid methods involving dual-probe porosimetries
نویسندگان
چکیده
The key issue, in applying indirect pore structure characterisation methods to disordered materials, is that usually some physical assumptions are necessary probe size, such as concerning the mode of phase transition used, which determines meniscus geometry or kernel type. This issue often undermines relative advantages methods, over direct like imaging, from both wider range pores sizes can be probed a single experiment and much better statistical representativeness data, essential for highly heterogeneous materials. Further, parameter calibrations provided using supposedly same model ordered porous materials conflictual. However, this work introduces dual-liquid thermoporometry, also dual-probe, serial water sorption mercury intrusion, complement multi-adsorbate, gas sorption, overcome by triangulating data three molecules used different porosimetries, namely liquid thermoporometry. It has been found augmenting one porosimetry, just molecule, dual-probe removes aforementioned, drawback methods. alternative, complementary porosimetries cross-validate approach each other. allows stand alone, without need imaging inform validate prior assumptions. experiments allow additional information on obtained beyond single-probe experiments. For example, thermoporometry probing presence nature advanced melting effect, adsorption porosimetry delivers network filling mechanisms during media.
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ژورنال
عنوان ژورنال: Colloids and Surfaces A: Physicochemical and Engineering Aspects
سال: 2022
ISSN: ['1873-4359', '0927-7757']
DOI: https://doi.org/10.1016/j.colsurfa.2022.130026