We did not measure the crack surface area in the samples used for our permeability measurements (the samples will be used for future studies; calculating crack surface area required destructive thin section preparation).
For diffuse reflectance measurements, the samples were scanned over the range 800 to 240 nm.
Before the isotherm measurements, the samples were thoroughly dehydrated and degassed by heating stepwise to 413 K for p-t-butylcalixarene and 623 K for r2KCHA under high vacuum overnight on a Micromeritics ASAP2010/2020 analyser.
For the zero-field-cooled (ZFC) magnetization measurements, the samples were first cooled down to 2.5 K in zero field, then the magnetic field was applied and the temperature raised to 50 K with 1 K/min.
Following the performance measurements, the samples are then sulfated to 5.5 mg S/gcat and desulfated to 1000 °C.
During the measurements the samples were stored under similar conditions.
Before the measurements, the samples were vacuumized at 343 K.
Before measurements, the samples were outgassed at 60 °C.
For dark current and noise measurements, the samples were surrounded with a cold shield.
Before measurements, the samples were outgassed at 80 °C for 12 h.
Before the measurements, the samples were degassed at 160 °C for 6 h in vacuum.
