Figure 6 : XRD patterns for as-synthesized K2CO3/γ-Al2O3 powder samples made
from the granules of 4-6 mm size: 1-before TSA cycling, 2-after TSA cycling.

Crystalline phases: -KAlCO3(OH)2, Δ–KHCO3, +–K4H2(CO3)3*1.5H2O.

Veselovskaya et al.Renewable Bioresources  2015 3:1DOI : 10.7243/2052-6237-3-1