Composite kernel method

In the composite kernel method, a composite kernel assembled by combining two kernels selected from the menu is fitted to the single experimental isotherm. The calculated PSD represents a sum of two components associated with the corresponding kernels. A similar method of using combined kernels was described and applied earlier.13

To apply this method, the box “Composite Kernel (1&2)” should be checked and two kernels need to be selected from the menu. These two kernels are assembled into a composite kernel which is fitted to a single experimental isotherm.

Example of the PSD analysis by the kernel composed of heterogeneous surface and finite pore models fitted to the experimental isotherm.

The effective PSD (filled blue) is considered a sum of two PSDs associated with two different models (kernels). One of the two components PSDs is shown in red.