. 2018 Jan 12;4(1):eaao6850. doi: 10.1126/sciadv.aao6850

Table 2. Compilation of basal spacings of pressure-induced expansion in materials in the literature.

Material	Δd₀₀₁ (Å)	Pressure (GPa)	Reference
Ti₃C₂T_x	2.5*/5^†	0.3 (uniaxial, ex situ)^‡	This work
	0.16*/2.66^†	0.32 (quasi-hydrostatic)^§
	0.69*/3.19^†	After unloading from 4.98 (quasi-hydrostatic)
Na-fluorohectorite (a clay mineral)	2*	2.5 (hydostatic)^§	(34)
Kaolinite	1.5*/2.4^†	0.1 (hydrostatic, over 65 hours)^§	(35)
GO	2.5*/6.9^†	1.25 (hydrostatic)^§	(1)

*Δd defined as difference between the phase after pressure is applied and highest d spacing observed from ambient-pressure hydration.

†Δd defined as difference between pressure-hydrated phase and dried, fully collapsed structure.

‡Maximum pressure applied (ex situ experiments).

§Pressure at which the expansion was observed to occur.