K. Sakamoto et al., Formation of nano-sized layer composite by intercalation to aluminium tri-hydrogen bis (orthophosphate) monohydrate, NANOSTR MAT, 12(1-4), 1999, pp. 491-494
Aluminium tri-hydrogen bis (orthophosphate) monohydrate [AlH3(PO4)(2). H2O]
is known as a material with a layered structure. We have synthesized the p
ure single phase of AlH3(PO4)(2). H2O by solvothermal reaction, with high e
fficiency. it was formed by the reaction of Al(OH)(3) with H3PO4 at 75 wt%
: The optimum molar ratio of H3PO4 to Al(OH)(3) is 7.5. The mixture of H3PO
4 and Al(OH)(3) in 1-propanol was refluxed at 94 degrees C for 24 hours und
er stirring. Furthermore, we intercalated phenylphosphonic acid into AlH3(P
O4)(2). H2O at room temperature and obtained a material with nano-sized lay
ers (d = 1.52 nm). Measurements of XRD and DTA-TG, and observations of SEM
and TEM were made on products.